# NMR, Optics Experiment, Young's Modulus - Labor > Tianjin Labor Scientific instruments Co., Ltd. is committed to the research and development of analytical instruments and software such as Fourier transform infrared spectrometer, near infrared spectrometer. ### Company Tianjin Labor Scientific Instruments Co.,Ltd. ### Description Tianjin Labor Scientific instruments Co.,Ltd. It is located in Tianjin Innovation Industrial Park, Beijing Branch of Chinese Academy of Sciences in national independent innovation demonstration zone. Tianjin entrepreneurial park of Beijing Branch of Chinese Academy of Sciences is an important achievement of CAS in actively responding to the overall national strategic plan of "coordinated development of Beijing, Tianjin and Hebei" put forward by the CPC Central Committee.. ### Address 308 room, F4 building, No. 6 Huafeng road, Huaming high-tech industrial zone, Dongli district, Tianjin City ### Phone 86-18822177000 ### Email 18822177000@163.com ## Home [Home](https://www.laboratorysci.com/) ## Electrical Meters&Accessories [Electrical Meters&Accessories](https://www.laboratorysci.com/electrical-metersaccessoriess/): DC Electrical Instruments, Measuring Instruments and Accessories, etc.      S/N Item Description Price USD              Ba ## Optical Mechanical Parts [Optical Mechanical Parts](https://www.laboratorysci.com/optical-mechanical-partss/): ITEM PICTURE USD LMP-01 Three-Axis Stage 136 LMP-02 Two-Axis Stage 78 LMP-03 Z-Adjustable Post Holder 48 LMP-04 Magnetic ba ## tags [tags](https://www.laboratorysci.com/tags/):tags ## About Us [About Us](https://www.laboratorysci.com/about-us/): Labor Tianjin Labor Scientific instruments Co., Ltd. It is located in Tianjin Innovation Industrial Park, Beijing Branch of Chinese Academy of ## Contact Us [Contact Us](https://www.laboratorysci.com/contact-us/): Tianjin Labor Scientific Instruments Co., Ltd. Address 308 room, F4 building, No. 6 Huafeng road,  Huaming high-tech industrial zone, Dongl ## Advanced Physics [Advanced Physics](https://www.laboratorysci.com/advanced-physics/) ## Electrical Meters&Accessories [Electrical Meters&Accessories](https://www.laboratorysci.com/electrical-metersaccessories/) ## Electromagnetism [Electromagnetism](https://www.laboratorysci.com/electromagnetism/) ## Featured [Featured](https://www.laboratorysci.com/featured/) ## Heat [Heat](https://www.laboratorysci.com/heat/) ## Lab Light Sources [Lab Light Sources](https://www.laboratorysci.com/lab-light-sources/) ## Lasers & Photonics&Fiber [Lasers & Photonics&Fiber](https://www.laboratorysci.com/lasers-photonics/) ## Mechanics [Mechanics](https://www.laboratorysci.com/mechanics/) ## Optical Mechanical Parts [Optical Mechanical Parts](https://www.laboratorysci.com/optical-mechanical-parts/) ## Optical table/Optical Bench [Optical table/Optical Bench](https://www.laboratorysci.com/optical-bench/) ## Optics Education Kits [Optics Education Kits](https://www.laboratorysci.com/optics-education-kits/) ## Products [Products](https://www.laboratorysci.com/products/) ## Spectrometers [Spectrometers](https://www.laboratorysci.com/spectrometers/) ## LMEC-1 Young's Modulus Apparatus - Hall Sensor Method [LMEC-1 Young's Modulus Apparatus - Hall Sensor Method](https://www.laboratorysci.com/lmec-1-youngs-modulus-apparatus-product/):Main experimental content 1、Principle and calibration of Hall position sensor. 2、Principle of Young's modulus measurement by bending method. 3,  ## LMEC-3 Simple Pendulum with Electric Timer [LMEC-3 Simple Pendulum with Electric Timer](https://www.laboratorysci.com/lmec-3-simple-pendulum-with-electric-timer-product/):Experiments 1. Measuring the law of period change at different pendulum angles and pendulum lengths. 2. Learn to use the single pendulum to measure t ## LMEC-4 Apparatus of Shear Modulus and Rotational Moment of Inertia [LMEC-4 Apparatus of Shear Modulus and Rotational Moment of Inertia](https://www.laboratorysci.com/lmec-4-apparatus-of-shear-modulus-and-rotational-moment-of-inertia-product/):Experiments 1. The principle and method of measuring the rotational inertia by torsion pendulum. 2. Using the torsion pendulum to measure the shear ## LMEC-6 Simple Harmonic Motion and Spring Constant(Hooke's Law) [LMEC-6 Simple Harmonic Motion and Spring Constant(Hooke's Law)](https://www.laboratorysci.com/lmec-6-simple-harmonic-motion-and-spring-constant-product/):Experiments 1. Verify hooke’s law, and measure the stiffness coefficient of a spring 2. Study the simple harmonic motion of a spring, measure the ## LMEC-7 Pohl's Pendulum [LMEC-7 Pohl's Pendulum](https://www.laboratorysci.com/lmec-7-pohls-pendulum-forced-oscillation-product/):LMEC-7 Pohl's Pendulum Experiments 1.Free oscillation - measurement of the correspondence between the amplitude of the balance wheel θ and the perio ## LMEC-8 Apparatus of Forced Vibration and Resonance [LMEC-8 Apparatus of Forced Vibration and Resonance](https://www.laboratorysci.com/lmec-8-apparatus-of-forced-vibration-and-resonance-product/):Experiments 1. Study the resonance of the tuning fork vibration system under the action of different periodic driving forces, measure and draw the re ## LMEC-9 Apparatus of Collision and Projectile Motion [LMEC-9 Apparatus of Collision and Projectile Motion](https://www.laboratorysci.com/lmec-9-apparatus-of-collision-and-projectile-motion-product/):Experiments 1. Study the collision of two balls, the simple pendulum motion of the ball before collision and the horizontal throwing motion of the bi ## LMEC-10 Apparatus of Measuring Liquid Surface Tension Coefficient [LMEC-10 Apparatus of Measuring Liquid Surface Tension Coefficient](https://www.laboratorysci.com/lmec-10-apparatus-of-measuring-liquid-surface-tension-coefficient-product/):Experiments 1. Calibrate a silicon resistance strain sensor, calculate its sensitivity, and learn how to calibrate a force sensor. 2. Observe the ph ## LMEC-11 Measuring Liquid Viscosity - Falling Sphere Method [LMEC-11 Measuring Liquid Viscosity - Falling Sphere Method](https://www.laboratorysci.com/lmec-11-measuring-liquid-viscosity-falling-sphere-method-product/):Features 1. Adopt laser photoelectric gate timing, more accurate measurement time. 2. With photoelectric gate position calibration indication, with ## LMEC-12 Measuring Liquid Viscosity - Capillary Method [LMEC-12 Measuring Liquid Viscosity - Capillary Method](https://www.laboratorysci.com/lmec-12-measuring-liquid-viscosity-capillary-method-product/):Experiments 1. Understand the poiseuille law 2. Learn how to measure viscous and surface tension coefficients of liquid using ostwald viscometer   ## LMEC-13 Comprehensive Experiments on Rotating Liquid [LMEC-13 Comprehensive Experiments on Rotating Liquid](https://www.laboratorysci.com/lmec-13-comprehensive-experiments-on-rotating-liquid-product/):Experiments 1. Measure gravity acceleration g using two methods: (1) Measure the height difference between the highest and the lowest points of the ## LMEC-14 Apparatus of Magnetic Damping and Kinetic Friction Coefficient [LMEC-14 Apparatus of Magnetic Damping and Kinetic Friction Coefficient](https://www.laboratorysci.com/lmec-14-apparatus-of-magnetic-damping-and-kinetic-friction-coefficient-product/):  Experiments 1. Observe magnetic damping phenomenon, and understand the concept and applications of magnetic damping 2. Observe sliding frictio ## LMEC-15 Interference, Diffraction and Velocity Measurement of Sound Wave [LMEC-15 Interference, Diffraction and Velocity Measurement of Sound Wave](https://www.laboratorysci.com/lmec-15-interference-diffraction-and-velocity-measurement-of-sound-wave-product/):Experiments 1. Generate and receive ultrasound 2. Measure sound velocity in air using phase and resonance interference methods 3. Study the interferen ## LMEC-16 Apparatus of Sound Velocity Measurement and Ultrasonic Ranging [LMEC-16 Apparatus of Sound Velocity Measurement and Ultrasonic Ranging](https://www.laboratorysci.com/lmec-16-apparatus-of-sound-velocity-measurement-ultrasonic-ranging-product/):Experiments 1. Measure the velocity of sound wave propagating in the air by the method of resonant interference. 2. Measure the velocity of sound wave ## LMEC-28 Apparatus of Measuring Hearing and Hearing Threshold [LMEC-28 Apparatus of Measuring Hearing and Hearing Threshold](https://www.laboratorysci.com/lmec-28-apparatus-of-measuring-hearing-and-hearing-threshold-product/):Functions 1. Master the measurement method of hearing and hearing threshold; 2. Determine the hearing threshold curve of the human ear.   Parts and ## LMEC-29 Pressure Sensor and Measurement of Heart Rate and Blood Pressure [LMEC-29 Pressure Sensor and Measurement of Heart Rate and Blood Pressure](https://www.laboratorysci.com/lmec-29-pressure-sensor-and-measurement-of-heart-rate-blood-pressure-product/):Functions 1. Understand the working principle of the gas pressure sensor and test its characteristics. 2. Use gas pressure sensor, amplifier and dig ## LMEC-30 Apparatus for Testing Human Reaction Time [LMEC-30 Apparatus for Testing Human Reaction Time](https://www.laboratorysci.com/lmec-30-apparatus-for-testing-human-reaction-time-product/):Experiments 1. Study the braking reaction time of cyclist or car driver when the signal light is changed. 2. Study the braking reaction time of cycli ## LEEM-2 Construction of an Ammeter and a Voltmeter [LEEM-2 Construction of an Ammeter and a Voltmeter](https://www.laboratorysci.com/leem-2-construction-of-an-ammeter-and-a-voltmeter-product/):Features This instrument uses a 100μA pointer type retrofit meter with higher sensitivity and a 4½ digit meter as a standard with improved measurem ## LEEM-3 Electric Field Mapping Apparatus [LEEM-3 Electric Field Mapping Apparatus](https://www.laboratorysci.com/leem-3-electrostatic-field-mapping-apparatus-product/):Functions 1. Learn to study electrostatic fields using simulation method. 2. Deepen the understanding on concepts of strength and potential of electr ## LEEM-4 Apparatus of Measuring Liquid Conductivity [LEEM-4 Apparatus of Measuring Liquid Conductivity](https://www.laboratorysci.com/leem-4-apparatus-of-measuring-liquid-conductivity-product/):Functions 1. Understand and demonstrate the working principle of the mutual inductive liquid conductivity sensor; acquire the relationship between th ## Specific Charge of Electron Apparatus(Stopped Temporarily) [Specific Charge of Electron Apparatus(Stopped Temporarily)](https://www.laboratorysci.com/leei-26-apparatus-of-work-function-specific-charge-of-electron-product/):Introduction The instrument uses the magnetic field generated by the Helmholtz coil to control the electron motion in the Lorentz force tube to deter ## LEEM-6 Hall Effect Experimental Apparatus(with software) [LEEM-6 Hall Effect Experimental Apparatus(with software)](https://www.laboratorysci.com/leem-6-hall-effect-experimental-apparatus-product/):This LEEM-6 was redesigned from old type"LEOM-1", so appearence may little different but quality and function is better. Experimental Items 1. Under ## LEEM-1 Helmholtz Coil Magnetic Field Apparatus [LEEM-1 Helmholtz Coil Magnetic Field Apparatus](https://www.laboratorysci.com/leem-1-helmholtz-coil-magnetic-field-apparatus-product/):Main experimental content 1. the principle of measuring magnetic induction strength by electromagnetic induction. 2. the size and distribution of the ## LEEM-7 Solenoid Magnetic Field Measurement Apparatus [LEEM-7 Solenoid Magnetic Field Measurement Apparatus](https://www.laboratorysci.com/leem-7-solenoid-magnetic-field-measurement-apparatus-product/):Experiments 1. Measure the sensitivity of a Hall sensor 2. Verify the output voltage of a Hall sensor proportional to the magnetic field intensity ins ## LEEM-14 Magnetic Hysteresis Loop and Magnetization Curve [LEEM-14 Magnetic Hysteresis Loop and Magnetization Curve](https://www.laboratorysci.com/leem-14-magnetic-hysteresis-loop-magnetization-curve-product/):Experiments 1. Acquire the relationship of magnetic induction intensity B and position X in a sample using a digital Tesla meter 2. Measure the range ## LEEM-8 Magnetoresistive Effect Experimental Apparatus [LEEM-8 Magnetoresistive Effect Experimental Apparatus](https://www.laboratorysci.com/leem-8-magnetoresistive-effect-experimental-apparatus-product/):Experiments 1. Study the resistance change of an InSb sensor vs the applied magnetic field intensity; find the empirical formula. 2. Plot InSb sensor ## LEEM-9 Magnetoresistive Sensor & Measuring Earth's Magnetic Field [LEEM-9 Magnetoresistive Sensor & Measuring Earth's Magnetic Field](https://www.laboratorysci.com/leem-9-magnetoresistive-sensor-measuring-earths-magnetic-field-product/):Experiments 1. Measure weak magnetic fields using a magnetoresistive sensor 2. Measure the sensitivity of a magneto-resistance sensor 3. Measure the h ## LEEM-10 Experimental Apparatus of PN Junction Characteristics [LEEM-10 Experimental Apparatus of PN Junction Characteristics](https://www.laboratorysci.com/leem-10-experimental-apparatus-of-pn-junction-characteristics-product/):Experiments 1. At the same temperature, measure the forward volt-ampere characteristics of the PN junction and calculate the Boltzmann constant; 2. ## LEEM-11A Measurement of V-I Characteristics of Nonlinear Components(Computer controlled) [LEEM-11A Measurement of V-I Characteristics of Nonlinear Components(Computer controlled)](https://www.laboratorysci.com/leem-11a-measurement-of-v-i-characteristics-of-nonlinear-components-product/):Experiments 1. Voltage divider and current control experiment; 2. Volt-ampere characteristic experiment of linear and nonlinear components; 3. Phot ## LEEM-12 Nonlinear Circuit Chaotic Experimental Apparatus [LEEM-12 Nonlinear Circuit Chaotic Experimental Apparatus](https://www.laboratorysci.com/leem-12-nonlinear-circuit-chaotic-experimental-apparatus-product/):Note: oscilloscope not included The study of nonlinear dynamics and its related bifurcation and chaos has been a hot topic in the scientific community ## LCP-1 Optics Experiment Kit - Basic Model [LCP-1 Optics Experiment Kit - Basic Model](https://www.laboratorysci.com/lcp-1-optics-experiment-kit-basic-model-product/):Experiments 1. Measuring The Focal Length Using Autocollimation 2. Measuring The Focal Length Using Bessel’s Method 3. Self-Assembling Slide Proj ## LCP-2 Holography& Interferometry Experiment Kit [LCP-2 Holography& Interferometry Experiment Kit](https://www.laboratorysci.com/lcp-2-holography-interferometry-experiment-kit-product/):Experiments  1. Recording and reconstructing holograms 2. Making holographic gratings 3. Constructing a Michelson interferometer and measuring ## LCP-4 Geometrical Optics Experiment Kit [LCP-4 Geometrical Optics Experiment Kit](https://www.laboratorysci.com/lcp-4-geometrical-optics-experiment-kit-product/):Experiments  1. Measurement of the focal length of a convex lens based on self-collimation 2. Measurement of the focal length of a convex lens based ## LCP-5 Lens Aberration and Fourier Optics Kit [LCP-5 Lens Aberration and Fourier Optics Kit](https://www.laboratorysci.com/lcp-5-lens-aberration-and-fourier-optics-kit-product/):Experiments  1. Spherical Aberration 2. Curvature of field 3. Astigmatism 4. Coma 5. Distortion 6. Chromatic aberration 7. Chromatic ab ## LCP-6 Interference, Diffraction &Polarization Kit - Enhanced Model [LCP-6 Interference, Diffraction &Polarization Kit - Enhanced Model](https://www.laboratorysci.com/lcp-6-interference-diffraction-polarization-kit-enhanced-model-product/):  Experiments Build Interferometers and Observe Interference Patterns Construct a Michelson interferometer and measure the refractive index of ai ## LCP-7 Holography Experiment Kit - Basic Model [LCP-7 Holography Experiment Kit - Basic Model](https://www.laboratorysci.com/lcp-7-holography-experiment-kit-basic-model-product/):Specifications Item Specifications Semiconductor Laser Center Wavelength: 650 nm Linewidth: < 0.2 nm Power >35 mW Exposure Shutter an ## LCP-8 Holography Experiment Kit - Complete Model [LCP-8 Holography Experiment Kit - Complete Model](https://www.laboratorysci.com/lcp-8-holography-experiment-kit-complete-model-product/):Experiments 1. Fresnel holographic photography 2. Image plane holography 3. One-step rainbow holographic photography 4. Two-step rainbow holographic ## LIT-4B Newton's Ring Experiment Apparatus - Complete Model [LIT-4B Newton's Ring Experiment Apparatus - Complete Model](https://www.laboratorysci.com/leok-30-newtons-ring-experiment-apparatus-complete-model-product/):Description The phenomenon of Newton's rings, named after Isaac Newton, when viewed with monochromatic light, it appears as a series of concentric, a ## LCP-9 Modern Optics Experiment Kit [LCP-9 Modern Optics Experiment Kit](https://www.laboratorysci.com/lcp-9-modern-optics-experiment-kit-product/):Experiments 1. Measure lens focal length using auto-collimation method 2. Measure lens focal length using displacement method 3. Measure air refrac ## LCP-10 Fourier Optics Experiment Kit [LCP-10 Fourier Optics Experiment Kit](https://www.laboratorysci.com/lcp-10-fourier-optics-experiment-kit-product/):Experiments 1.Through experiments, the concepts of spatial frequency, spatial spectrum and spatial filtering in Fourier optics are understood. 2.To ## LCP-11 Information Optics Experiment Kit [LCP-11 Information Optics Experiment Kit](https://www.laboratorysci.com/lcp-11-information-optics-experiment-kit-product/):Experiments 1. Holographic photography 2. Holographic grating fabrication 3. Abbe imaging and spatial light filtering 4. Theta modulation   ## LCP-12 Optical Image Addition/Subtraction Experiments [LCP-12 Optical Image Addition/Subtraction Experiments](https://www.laboratorysci.com/lcp-12-optical-image-additionsubtraction-experiments-product/):Experiments 1.Understand the relevant knowledge of Fourier optical filtering 2.Understand the physical significance of the addition and subtraction ## LCP-13 Optical Image Differentiation Experiment [LCP-13 Optical Image Differentiation Experiment](https://www.laboratorysci.com/lcp-13-optical-image-differentiation-experiment-product/):  Experiments  1. Understand the principle of optical image differentiation 2.  Deepen the understanding of Fourier optical filtering 3.  Unders ## LCP-14 Optical Image Convolution Experiment [LCP-14 Optical Image Convolution Experiment](https://www.laboratorysci.com/lcp-14-optical-image-convolution-experiment-product/):Specifications Description Specifications Semiconductor Laser 5 mW @ 650 nm Optical Rail Length: 1 m   Part List Description ## LCP-15 Information Optical Experiments with LC-SLM [LCP-15 Information Optical Experiments with LC-SLM](https://www.laboratorysci.com/lcp-15-information-optical-experiments-with-lc-slm-product/):Experiments 1. Electro-optic effect of liquid crystal 2. Microstructure measurement of an electronically addressable LC-SLM using diffraction theory ## LCP-16 Hologram Recording Under Room Light [LCP-16 Hologram Recording Under Room Light](https://www.laboratorysci.com/lcp-16-hologram-recording-under-room-light-product/):Experiments: 1. Fresnel (transmissive) holography 2. Reflective holography 3. Image plane holography 4. Two-step rainbow holography 5. One-step rainb ## LCP-17 Measuring the hydrogen Balmer series and Rydberg's constant [LCP-17 Measuring the hydrogen Balmer series and Rydberg's constant](https://www.laboratorysci.com/lcp-17-balmer-series-of-hydrogen-rydberg-constant-product/):Specifications Item Specifications Hydrogen-Deuterium Lamp Wavelengths: 410, 434, 486, 656 nm Digital Protractor Resolution: 0.1° Condensing ## LIT-4A Fabry-Perot Interferometer [LIT-4A Fabry-Perot Interferometer](https://www.laboratorysci.com/lit-4a-fabry-perot-interferometer-product/):Specifications Description Specifications Flatness of Reflective Mirror λ/20 Diameter of Reflective Mirror 30 mm Min Division Value of P ## LIT-5 Michelson &Fabry-Perot Interferometer [LIT-5 Michelson &Fabry-Perot Interferometer](https://www.laboratorysci.com/lit-5-michelson-fabry-perot-interferometer-product/):Experiments  1. Two-beam Interference observation 2. Equal-inclination fringe observation 3. Equal-thickness fringe observation 4. White-light fr ## LIT-6 Precision Interferometer [LIT-6 Precision Interferometer](https://www.laboratorysci.com/lit-6-precision-interferometer-product/):Experiments 1. Two-beam Interference observation 2. Equal-inclination fringe observation 3. Equal-thickness fringe observation 4. White-light frin ## LCP-18 Apparatus for Measuring Speed of Light [LCP-18 Apparatus for Measuring Speed of Light](https://www.laboratorysci.com/lcp-18-apparatus-for-measuring-speed-of-light-product/):LCP-18 Apparatus for Measuring Speed of Light The propagation speed of light in vacuum is an extremely important fundamental physical quantity, and ma ## LCP-19 Measurement of Diffraction Intensity [LCP-19 Measurement of Diffraction Intensity ](https://www.laboratorysci.com/lcp-19-measurement-of-diffraction-intensity-complete-model-product/):Specifications He-Ne laser 1.5 mW@632.8 nm Multi-slit plate 2, 3, 4 and 5 slits Displacement Range of Photocell 80 mm Resolution 0.01 ## LCP-27 Measurement of Diffraction Intensity [LCP-27 Measurement of Diffraction Intensity ](https://www.laboratorysci.com/lcp-27-measurement-of-diffraction-intensity-enhanced-model-product/):Experiments 1.Test of single slit, multiple slit, porous and multi rectangle diffraction, the law of diffraction intensity changes with experimental ## LCP-22 Single-Wire/Single-Slit Diffraction [LCP-22 Single-Wire/Single-Slit Diffraction](https://www.laboratorysci.com/lcp-22-single-wiresingle-slit-diffraction-product/):Experiments 1.Observe single-wire/single-slit diffraction 2.Measure diffraction intensity distribution 3.Learn relationship of intensity vs wavelen ## LCP-23 Experimental System for Polarized Light - Complete Model [LCP-23 Experimental System for Polarized Light - Complete Model](https://www.laboratorysci.com/lcp-23-experimental-system-for-polarized-light-complete-model-product/):Experiment Examples 1. Brewster's angle measurement of a black glass 2. Verification of Malus's Law 3. Function study of a l/2 plate 4. Function s ## LCP-29 Rotation of Polarized Light Experiment - Enhanced Model [LCP-29 Rotation of Polarized Light Experiment - Enhanced Model](https://www.laboratorysci.com/lcp-29-experimental-system-for-polarized-light-enhanced-model-product/):Experiments 1.Observation of polarization of light 2.Observation of the optical properties of glucose water solution 3.Measurement of concentration ## LCP-25 Experimental Ellipsometer [LCP-25 Experimental Ellipsometer](https://www.laboratorysci.com/lcp-25-experimental-ellipsometer-product/):Specifications Description Specifications Thickness Measurement Range 1 nm ~ 300 nm Range of Incident Angle 30º ~ 90º , Error ≤ 0.1º Po ## LCP-26 Blackbody Experimental System [LCP-26 Blackbody Experimental System](https://www.laboratorysci.com/lcp-26-blackbody-experimental-system-product/):Experiments 1. Verify the Planck’s law of radiation 2. Verify the Stefan-Boltzmann law 3. Verify the Wien’s Displacement law 4. Study the re ## LPT-1 Experimental System for Crystal Magneto-Optic Effect [LPT-1 Experimental System for Crystal Magneto-Optic Effect](https://www.laboratorysci.com/lpt-1-experimental-system-for-crystal-magneto-optic-effect-product/):Experiment Examples  1. Measure Faraday rotation angle 2. Calculate the Verdet constant of a material 3. Characterize a magneto-optic glass 4. De ## LPT-2 Experimental System for Acousto-Optic Effect [LPT-2 Experimental System for Acousto-Optic Effect](https://www.laboratorysci.com/lpt-2-experimental-system-for-acousto-optic-effect-product/):Experiment Examples  1. Observe Bragg diffraction and measure Bragg diffraction angle 2. Display acousto-optic modulation waveform 3. Observe acou ## LPT-3 Experimental System for Electro-Optic Modulation [LPT-3 Experimental System for Electro-Optic Modulation](https://www.laboratorysci.com/lpt-3-experimental-system-for-electro-optic-modulation-product/): Experiment Examples  1. Display electro-optic modulation waveform 2. Observe electro-optic modulation phenomenon 3. Measure half-wave voltage of ## LPT-4 Experimental System for LC Electro-Optic Effect [LPT-4 Experimental System for LC Electro-Optic Effect](https://www.laboratorysci.com/lpt-4-experimental-system-for-lc-electro-optic-effect-product/):Experiments 1. Measure the electro-optic curve of the liquid crystal sample and obtain the electro-optic parameters such as threshold voltage, satura ## LPT-5 Experimental System for Photocell( solar cell ) Characterization [LPT-5 Experimental System for Photocell( solar cell ) Characterization](https://www.laboratorysci.com/lpt-5-experimental-system-for-photocell-characterization-product/):@font-face{ font-family:"Times New Roman"; }@font-face{ font-family:"宋体"; }@font-face{ font-family:"Cambria"; }@font-face{ font-family:"Arial Regu ## LPT-6 Measurement of Photoelectric Characteristics of Photosensitive Sensors [LPT-6 Measurement of Photoelectric Characteristics of Photosensitive Sensors](https://www.laboratorysci.com/lpt-6-measurement-of-photoelectric-characteristics-of-photosensitive-sensors-product/):Main experimental content 1, understanding the basic characteristics of photoresistors, silicon photocells, photodiodes, phototransistors, measuring i ## LPT-7 Diode-Pumped Solid-State Laser Demonstrator [LPT-7 Diode-Pumped Solid-State Laser Demonstrator](https://www.laboratorysci.com/lpt-7-diode-pumped-solid-state-laser-demonstrator-product/):Specifications Semiconductor Laser   CW Output Power ≤ 500 mW   Polarization TE   Center Wavelength 808 ± 10 nm   Operation Temperat ## LPT-9 Serial Experiments of He-Ne Laser [LPT-9 Serial Experiments of He-Ne Laser ](https://www.laboratorysci.com/lpt-9-serial-experiments-of-he-ne-laser-resonator-and-modes-product/):Specifications  Description Specifications Optical Rail 1m, Hard Aluminum He-Ne Laser He-Ne Laser with Brewster Window，Mirrors：R=1m、 ## LPT-10 Apparatus for Properties Measurement of Semiconductor Laser [LPT-10 Apparatus for Properties Measurement of Semiconductor Laser](https://www.laboratorysci.com/lpt-10-apparatus-for-properties-measurement-of-semiconductor-laser-product/):Experiments 1. Measure the far-field distribution of the beam and calculate its vertical and horizontal divergent angles. 2. Measure the voltage-curr ## LPT-11 Serial Experiments on Semiconductor Laser [LPT-11 Serial Experiments on Semiconductor Laser](https://www.laboratorysci.com/lpt-11-serial-experiments-on-semiconductor-laser-product/):Description Laser generally consists of three parts (1) Laser working medium The generation of laser must choose the appropriate working medium, whic ## LPT-12 Fiber Communication Experiment Kit - Basic Model [LPT-12 Fiber Communication Experiment Kit - Basic Model](https://www.laboratorysci.com/lpt-12-fiber-communication-experiment-kit-basic-model-product/):Introduction It's a basic mode of fiber communication experiments, it's cheaper and can perform most basic fiber optics experiments. Experimental exam ## LPT-13 Fiber Communication Experiment Kit - Complete Model [LPT-13 Fiber Communication Experiment Kit - Complete Model](https://www.laboratorysci.com/lpt-13-fiber-communication-experiment-kit-complete-model-product/):Experiments 1. Fundamental knowledge of optical fiber optics 2. Coupling method between optical fiber and light source 3. Multimode fiber numerical ap ## LPT-14 Fiber Communication Experiment Kit - Enhanced Model [LPT-14 Fiber Communication Experiment Kit - Enhanced Model](https://www.laboratorysci.com/lpt-14-fiber-communication-experiment-kit-enhanced-model-product/):Experiments 1. Fundamentals of fiber optics 2. Optical fiber coupling 3. Numerical aperture (NA) of a multimode fiber 4. Optical fiber transmission l ## LADP-2 Experimental System of Pulsed NMR [LADP-2 Experimental System of Pulsed NMR](https://www.laboratorysci.com/ladp-2-experimental-system-of-pulsed-nmr-product/):Experiments 1. Understand the basic physical theory and experimental configuration of a PNMR system. Learn to explain related physical phenomena in P ## LADP-4 Microwave Ferromagnetic Resonance Apparatus [LADP-4 Microwave Ferromagnetic Resonance Apparatus](https://www.laboratorysci.com/ladp-4-microwave-ferromagnetic-resonance-apparatus-product/):Experiments 1. Understand and master the functions and regulation methods of each microwave device. 2. Understand the measurement principle and exp ## LADP-19 Apparatus of Optical Pumping [LADP-19 Apparatus of Optical Pumping](https://www.laboratorysci.com/ladp-19-apparatus-of-optical-pumping-product/):Experiments 1. Observe optical pumping signal 2. Measure g-factor 3. Measure earth magnetic field (horizontal and vertical components) Specifications ## LADP-5 Zeeman Effect Apparatus with Permanent Magnet [LADP-5 Zeeman Effect Apparatus with Permanent Magnet](https://www.laboratorysci.com/ladp-5-zeeman-effect-apparatus-with-permanent-magnet-product/):Experiments 1. Observe Zeeman effect, and understand atomic magnetic moment and spatial quantization 2. Observe the splitting and polarization of a Me ## LADP-6 Zeeman Effect Apparatus with Electromagnet [LADP-6 Zeeman Effect Apparatus with Electromagnet](https://www.laboratorysci.com/ladp-6-zeeman-effect-apparatus-with-electromagnet-product/):Experiments 1. Generating strong magnetic fields 2. Adjustment method of F-P etalon 3. Typical methods for observing Zeeman effect 4. Applicat ## LADP-7 Integrated Experimental System of Faraday and Zeeman Effects [LADP-7 Integrated Experimental System of Faraday and Zeeman Effects](https://www.laboratorysci.com/ladp-7-integrated-experimental-system-of-faraday-and-zeeman-effects-product/):Experiments 1. Observe Zeeman effect, and understand atomic magnetic moment and spatial quantization 2. Observe the splitting and the polarization of ## LADP-10 Apparatus of Franck-Hertz Experiment [LADP-10 Apparatus of Franck-Hertz Experiment ](https://www.laboratorysci.com/ladp-10-apparatus-of-franck-hertz-experiment-advanced-model-product/):Experiments 1.Understand the general principle and usage of computer real-time measurement and control system. 2.The influence of temperature, filam ## LADP-11 Apparatus of Ramsauer-Townsen Effect [LADP-11 Apparatus of Ramsauer-Townsen Effect](https://www.laboratorysci.com/ladp-11-apparatus-of-ramsauer-townsen-effect-product/):Experiments 1. Understand the collision rule of electrons with atoms and learn how to measure atomic scattering cross section. 2. Measure scattering p ## LADP-12 Apparatus of Millikan's Experiment - Basic Model [LADP-12 Apparatus of Millikan's Experiment - Basic Model](https://www.laboratorysci.com/ladp-12-apparatus-of-millikans-experiment-basic-model-product/):Specifications Average relative error          ≤3% ⒈ 　Separation distance between electrode plates     （5.00 ± 0.01）mm ⒉ ## LADP-14 Determining Specific Charge of Electron [LADP-14 Determining Specific Charge of Electron](https://www.laboratorysci.com/ladp-14-determining-specific-charge-of-electron-advanced-model-product/):Main parameters Filament current Anode voltage Anode current Excitation current 0-1.000A 0-150.0V Resolution 0.1μA 0-1.000A Standard configuration E ## LADP-15 Apparatus for Determining Planck's Constant(Software Optional) [LADP-15 Apparatus for Determining Planck's Constant(Software Optional)](https://www.laboratorysci.com/ladp-15-apparatus-for-determining-plancks-constant-basic-model-product/):  Experiments 1、Measure the cut-off voltage and calculate to get Planck's constant. 2、Measure the photocurrent of the phototube and conduct ## LADP-18 Apparatus for Determining Curie Temperature of Ferrite Materials [LADP-18 Apparatus for Determining Curie Temperature of Ferrite Materials](https://www.laboratorysci.com/ladp-18-apparatus-for-determining-curie-temperature-of-ferrite-materials-product/):Experiments 1. Understand the mechanism of the transition between ferromagnetism and para-magnetism of ferrite materials. 2. Determine Curie temperatu ## LADP-8 Magnetoresistance & Giant Magnetoresistance Effect [LADP-8 Magnetoresistance & Giant Magnetoresistance Effect](https://www.laboratorysci.com/ladp-8-magnetoresistance-giant-magnetoresistance-effect-product/):Experiments 1. Understand magneto-resistance effects and measure the magnetic resistance Rb of three different materials. 2. Plot diagram of Rb/R0 w ## LADP-9 Apparatus of A-Scan Ultrasound and Applications [LADP-9 Apparatus of A-Scan Ultrasound and Applications](https://www.laboratorysci.com/ladp-9-apparatus-of-a-scan-ultrasound-applications-product/):Experiments 1. Measurement of the sound velocity in water or the thickness of a water layer. 2. Simulative measurement of the thickness of a human org ## FTIR-990 FTIR Spectrometer [FTIR-990 FTIR Spectrometer](https://www.laboratorysci.com/ftir-7600-fourier-transform-infrared-spectrometer-product/):Labor CE certificated FTIR-990 Fourier transform infrared spectrometer is an independent research and development of products, it is the most comp ## LGS-2 Experimental CCD Spectrometer [LGS-2 Experimental CCD Spectrometer](https://www.laboratorysci.com/leoi-100-experimental-ccd-spectrometer-product/):Description LGS-2 Experimental CCD Spectrometer is a general purpose measuring instrument. It uses CCD as receiver unit to greatly extend its range ## LGS-3 Modular Multifunctional Grating Spectrometer/Monochromator [LGS-3 Modular Multifunctional Grating Spectrometer/Monochromator](https://www.laboratorysci.com/leoi-101-modular-multifunctional-grating-spectrometermonochromator-product/):LGS-3 Modular Multifunctional Grating Spectrometer This spectrometer is designed to help students understand the concepts of light and wave phenomena ## LGS-4 Miniature Monochromator [LGS-4 Miniature Monochromator](https://www.laboratorysci.com/leoi-92-miniature-monochromator-product/):  Specifications   Description Specifications Wavelength Range 200 - 800 nm Wavelength Repeatability ± 1 nm Relative Aperture D/ ## LGS-5 Spectroscope [LGS-5 Spectroscope](https://www.laboratorysci.com/leoi-96-kirchhoff-bunsen-spectroscope-product/): Introduction   The Spectrometer is spectroscopic angle measurement instrument. It can be used for the angular measurements based on refracti ## LGS-6 Disc Polarimeter [LGS-6 Disc Polarimeter](https://www.laboratorysci.com/leoi-110-disc-polarimeter-product/):  Applications A polarimeter is an instrument to measure the degree of the optical active rotation of a sample, from which the concentration, purity ## LGS-7 Abbe Refractometer [LGS-7 Abbe Refractometer](https://www.laboratorysci.com/leoi-112-abbe-refractometer-product/):Specifications Description Specifications Refractive Index nD 1.3000 ~ 1.7000 Accuracy ± 0.0002 Dissolved Solids Brix 0 ~ 95% Dimensions 2 ## LMEC-2 Young's Modulus Apparatus - Resonance Method [LMEC-2 Young's Modulus Apparatus - Resonance Method](https://www.laboratorysci.com/lmec-2-youngs-modulus-apparatus-resonance-method-product/):Experiments 1. Understand how to measure the resonance frequency of materials; 2. The young's modulus was measured by dynamic suspension method; 3. M ## LMEC-5 Rotational Moment of Inertia Apparatus [LMEC-5 Rotational Moment of Inertia Apparatus](https://www.laboratorysci.com/lmec-5-rotational-moment-of-inertia-apparatus-product/):Experiments 1. Learn to measure the rotational inertia of an object with a trilinear pendulum. 2. Learn to measure the period of motion of the pendul ## LEAT-2 Apparatus of Measuring Specific Heat Capacity of Metal [LEAT-2 Apparatus of Measuring Specific Heat Capacity of Metal](https://www.laboratorysci.com/leat-2-apparatus-of-measuring-specific-heat-capacity-of-metal-product/):Main technical parameters 1, sample: Ф7 × 30mm copper, iron, aluminum, placed in the windproof cover. 2, the heating device of the test frame can be ## LEAT-1 Air Specific Heat Ratio Apparatus [LEAT-1 Air Specific Heat Ratio Apparatus](https://www.laboratorysci.com/leat-1-air-specific-heat-ratio-2-product/):Main experimental contents 1. measuring the ratio of constant pressure specific heat capacity to constant volume specific heat capacity of air, i.e. s ## LEAT-4 Thermal Conductivity Measurement Apparatus [LEAT-4 Thermal Conductivity Measurement Apparatus](https://www.laboratorysci.com/leat-4-thermal-conductivity-measurement-apparatus-product/):Main technical features: 1. It adopts isolated low-voltage heating, which is safe and convenient to use; 2. Using national standard thermocouple to me ## LEAT-5 Thermal Expansion Experiment [LEAT-5 Thermal Expansion Experiment](https://www.laboratorysci.com/leat-5-thermal-expansion-experiment-product/):  Experiments 1.Measurement of the coefficient of linear expansion of iron, copper and aluminum 2.Master the basic principle of measuring the ## LEAT-6 Apparatus of Comprehensive Heat Experiments [LEAT-6 Apparatus of Comprehensive Heat Experiments](https://www.laboratorysci.com/leat-6-apparatus-of-comprehensive-heat-experiments-product/):Experiments 1. PID intelligent temperature control water circulation system heats the measured medium, and the heating is stable and uniform. 2. The ## LEAT-7 Temperature Properties of Various Temperature Sensors [LEAT-7 Temperature Properties of Various Temperature Sensors](https://www.laboratorysci.com/leat-7-temperature-properties-of-various-temperature-sensors-product/):Experiments 1. Learn to use constant current method to measure thermal resistance; 2. Learn to use DC bridge method to measure thermal resistance; ## LEEM-13 Interference, Diffraction & Polarization of Microwave [LEEM-13 Interference, Diffraction & Polarization of Microwave](https://www.laboratorysci.com/leem-13-interference-diffraction-polarization-of-microwave-product/):Description The microwave demonstrator consists of microwave transmitter, microwave receiver with amplifier, receiving dipole and accessories. This e ## LEEM-16 Dielectric Constant Apparatus [LEEM-16 Dielectric Constant Apparatus](https://www.laboratorysci.com/leem-16-magnetoresistive-effect-experimental-apparatus-product/):Main experimental contents 1. measurement of vacuum permittivity e0 and relative permittivity er; 2. learning LC resonance method to measure small ## LEEM-17 RLC Circuit Experiment [LEEM-17 RLC Circuit Experiment](https://www.laboratorysci.com/leem-17-nonlinear-circuit-chaotic-experimental-apparatus-product/):Experiments 1. Observe the amplitude-frequency characteristics and phase-frequency characteristics of RC, RL, and RLC circuits; 2. Observe the series ## LCP-20 Interference Diffraction Experimental Instrument [LCP-20 Interference Diffraction Experimental Instrument](https://www.laboratorysci.com/lcp-20-measurement-of-diffraction-intensity-enhanced-model-product/):Experiments 1. Young’s double slit interference 2. Fresnel double prism interference 3.  Fraunhofer single slit diffraction Specifications Op ## LADP-1A Experimental System of CW NMR - Advanced Model [LADP-1A Experimental System of CW NMR - Advanced Model](https://www.laboratorysci.com/ladp-1a-experimental-system-of-cw-nmr-advanced-model-product/):  Description  Optional part:Frequency meter, self prepared part oscilloscope This experimental system of continuous-wave nuclear magnetic re ## LADP-16 Apparatus for Determining Planck's Constant - Advanced Model [LADP-16 Apparatus for Determining Planck's Constant - Advanced Model](https://www.laboratorysci.com/ladp-16-apparatus-for-determining-plancks-constant-advanced-model-product/):Planck’s Constant Experimental System applies the photoelectric effect to measure the current-voltage (I-V) characteristic curves of a photocatho ## LADP-17 Microwave optical comprehensive experiment [LADP-17 Microwave optical comprehensive experiment](https://www.laboratorysci.com/ladp-17-microwave-characteristics-experiments-product/):Experiments 1. Understand and learn the basic principles of microwave generation and propagation and reception and other basic characteristics; 2. M ## LGS-1 Laser Raman Spectrometer [LGS-1 Laser Raman Spectrometer](https://www.laboratorysci.com/lgs-1-laser-raman-spectrometer-product/):LGS-1 Laser Raman Spectrometer is a useful instrument for the identification of a wide range of substances in physics and chemistry laboratories of sc ## TJ270-30A Dual Beam Infrared Spectrophotometer [TJ270-30A Dual Beam Infrared Spectrophotometer](https://www.laboratorysci.com/tj270-30a-dual-beam-infrared-spectrophotometer-product/):Newly upgrated the new cover: Features High quality Low stray light High accuracy measurement Simple structure with easy operation   In ## F-29 Fluorescence Spectrophotometer [F-29 Fluorescence Spectrophotometer](https://www.laboratorysci.com/f-29-fluorescence-spectrophotometer-product/): Features Wavelength range 200-760nm or zero order light (optional special photomultiplier can be expanded 200-900nm), High signal to noise ratio 1 ## LIT-4 Michelson Interferometer [LIT-4 Michelson Interferometer](https://www.laboratorysci.com/lit-4-michelson-interferometer-product/):Experiment Examples  1. Interference fringe observation 2. Equal-inclination fringe observation 3. Equal-thickness fringe observation 4. White-li ## LCP-3 Optics Experiment Kit - Enhanced Model [LCP-3 Optics Experiment Kit - Enhanced Model](https://www.laboratorysci.com/lcp-3-optics-experiment-kit-enhanced-model-product/):It can be used to construct a total of 26 different experiments which can be grouped in six categories: Lens Measurements: Understanding and verify ## LEEM-10A Experimental Apparatus of PN Junction Characteristics [LEEM-10A Experimental Apparatus of PN Junction Characteristics](https://www.laboratorysci.com/leem-10a-experimental-apparatus-of-pn-junction-characteristics-2-product/):Experiments 1. The relation between the PN junction diffusion current and the junction voltage is measured, and this relation shall be proved to fo ## LCP-21 Interference and Diffraction Experiment Instrument(Computer Controlled) [LCP-21 Interference and Diffraction Experiment Instrument(Computer Controlled)](https://www.laboratorysci.com/lcp-21-interference-and-diffraction-experiment-instrument-product/):Using advanced CCD linear photoelectric sensor, with 11μm or 14μm spatial resolution and thousands of pixels, the experimental error is small; the d ## LB-820 UV-Vis NIR Spectrophotometer [LB-820 UV-Vis NIR Spectrophotometer](https://www.laboratorysci.com/lb-820-uv-vis-nir-spectrophotometer-product/): Instrument features   The design of double beam optical system reduces the background interference and improves the test accuracy. The recei ## LEEM-5 Hall Effect Experimental Apparatus [LEEM-5 Hall Effect Experimental Apparatus](https://www.laboratorysci.com/leem-5-hall-effect-experimental-apparatus-product/):Experiments 1. learning the principle of Hall effect and mapping the curve of Hall element. 2. learning to measure the magnetic induction strength B u ## LPT-6A Measurement of Photoelectric Characteristics of Photosensitive Sensors [LPT-6A Measurement of Photoelectric Characteristics of Photosensitive Sensors](https://www.laboratorysci.com/lpt-6a-measurement-of-photoelectric-characteristics-of-photosensitive-sensors-product/):Experiments Measure the volt ampere characteristic and illumination characteristic of silicon photocell and photoresistor. Measure the volt ampere ## LEEM-11 Measurement of V-I Characteristics of Nonlinear Components [LEEM-11 Measurement of V-I Characteristics of Nonlinear Components](https://www.laboratorysci.com/leem-11-measurement-of-v-i-characteristics-of-nonlinear-components-product/):Traditional digital voltmeters generally have an internal resistance of only 10MΩ, which introduces a large error when measuring high resistance comp ## LADP-1 Nuclear Magnetic Resonance(NMR) Instrument [LADP-1 Nuclear Magnetic Resonance(NMR) Instrument](https://www.laboratorysci.com/ladp-1-experimental-system-of-cw-nmr-advanced-model-2-product/):Main experimental content 1、Master and understand the principle and phenomenon of nuclear magnetic resonance (NMR). 2, can observe 1H and 19F nuclea ## LPT-8 Q-switched Nd3+:YAG Frequency-tripled Laser System [LPT-8 Q-switched Nd3+:YAG Frequency-tripled Laser System](https://www.laboratorysci.com/lpt-8-q-switched-nd3yag-frequency-tripled-laser-system-product/):Experiments 1. Installation and adjustment of laser 2. Output pulse width measurement of laser 3. Laser threshold measurement and laser mode select ## LTS-1 Tungsten-Bromine lamp [LTS-1 Tungsten-Bromine lamp](https://www.laboratorysci.com/lts-1-tungsten-bromine-lamp-product/):  Introduction 1 DC 12V with power supply, compact structure, strong light energy 2 Ideal visible near infrared light source 3 C ## LTS-3 Low-pressure Mercury lamp [LTS-3 Low-pressure Mercury lamp](https://www.laboratorysci.com/lts-3-low-pressure-mercury-lamp-product/):  Introduction 1 The standard light source can check the wavelength accuracy of the instrument and check the resolution of the instrumen ## LTS-4 Sodium Lamp [LTS-4 Sodium Lamp](https://www.laboratorysci.com/lts-4-sodium-lamp-product/):Description Light source of optical experiments Sodium double line 589.0nm and 589.6nm Its height is adjustable ## LTS-5 Light Power Meter [LTS-5 Light Power Meter](https://www.laboratorysci.com/lts-5-light-power-meter-product/):  Specifications Description Specifications PIN Photodiode Spectral range：400-1100nm,Active area：10mm*10mm Measurement Range 0.1 ## LTS-6 Brightness adjustable white light source [LTS-6 Brightness adjustable white light source](https://www.laboratorysci.com/lts-6-brightness-adjustable-white-light-source-product/):  Introduction 1 Used in a physical laboratory as an incandescent light source, the luminance can be adjusted at will. 2 It can prod ## LTS-7 Semiconductor Laser [LTS-7 Semiconductor Laser](https://www.laboratorysci.com/lts-7-semiconductor-laser-product/):  Introduction 1 This semiconductor laser can be used in optical experiments, such as geometry optics, interference, diffraction, polari ## LTS-8 Multiple Discharge Lamp [LTS-8 Multiple Discharge Lamp](https://www.laboratorysci.com/lts-8-multiple-discharge-lamp-product/):  Introduction 1 Helium neon nitrogen three kinds of multi group discharge lamp light source, suitable for University Laboratory 2 I ## LTS-9 Sodium-Tungsten Lamp [LTS-9 Sodium-Tungsten Lamp](https://www.laboratorysci.com/lts-9-sodium-tungsten-lamp-product/):  Introduction 1 Tungsten lamp 6V15W, sodium lamp 20W 2 It is mainly used in white light interference experiment of Michelson interf ## LTS-10/10A He-Ne Laser [LTS-10/10A He-Ne Laser](https://www.laboratorysci.com/lts-1010a11-he-ne-laser-product/):Characteristic The advantages of the intracavity He-Ne laser are that the resonator is not adjusted, the price is low and the use is convenient. The ## LTS-11 He-Ne Laser(5mW) [LTS-11 He-Ne Laser(5mW)](https://www.laboratorysci.com/lts-11-he-ne-laser5mw-product/):  Laser model LTS-11 Mode Multie Optimum working current 6±1mA Working  voltage 1500V Output ≥5mW Outer diameter of gl ## LTS-12 Hydrogen-Deuterium Lamp [LTS-12 Hydrogen-Deuterium Lamp](https://www.laboratorysci.com/lts-12-hydrogen-deuterium-lamp-product/):Specifications Description Specifications Hydrogen Spectrum (nm) 410.18, 434.05, 486.13, 656.28 Deuterium Spectrum (nm) 410.07, 433.93, 486.01, ## LTS-13 Green Laser [LTS-13 Green Laser](https://www.laboratorysci.com/lts-13-green-laser-product/):LTS-13 Green Laser ## LTS-14 Dual Purpose Tungsten Lamp [LTS-14 Dual Purpose Tungsten Lamp](https://www.laboratorysci.com/lts-14-dual-purpose-tungsten-lamp-product/):  Introduction 1 The lamplight of the bromine tungsten forms an approximate parallel beam through the optical system. A variety of apert ## LTS-15 High Pressure Mercury Lamp [LTS-15 High Pressure Mercury Lamp](https://www.laboratorysci.com/lts-15-high-pressure-mercury-lamp-product/):           Introduction 1 A strong arc discharge mercury lamp has high gas pressure and high luminous efficiency in the tube. ## LTS-16 Fiber-optic Tungsten-Bromine light source [LTS-16 Fiber-optic Tungsten-Bromine light source ](https://www.laboratorysci.com/lts-16-fiber-optic-tungsten-bromine-light-source-20-w-product/):  Type Power Wavelength Out Put Intensity Adjustable Fiber Optic Interface LTS-16 20W 350-2500nm NO SMA905 LTS-16A ## LTS-2 Deuterium Tungsten-Bromine lamp [LTS-2 Deuterium Tungsten-Bromine lamp](https://www.laboratorysci.com/lts-2-deuterium-tungsten-bromine-lamp-product/):LTS-2 Deuterium Tungsten-Bromine lamp ## LMEC-15A Velocity of Sound Apparatus [LMEC-15A Velocity of Sound Apparatus](https://www.laboratorysci.com/lmec-15a-velocity-of-sound-apparatus-product/):The design of the instrument is improved and the data stability of time difference measurement is improved, which is better than the similar products. ## LMEC-15B Sound velocity Apparatus(Resonance Tube) [LMEC-15B Sound velocity Apparatus(Resonance Tube)](https://www.laboratorysci.com/lmec-15b-sound-velocity-apparatusresonance-tube-product/):Experiments 1. Observe the audible standing wave in the resonance tube 2. Measure the sound velocity Main technical specifications 1. Resonance tu ## LMEC-17 Uphill Roller Experiment (Energy conservation) [LMEC-17 Uphill Roller Experiment (Energy conservation)](https://www.laboratorysci.com/lmec-17-uphill-roller-experiment-energy-conservation-product/):Experiments 1. Learn to use vernier caliper, screw micrometer and other related measurement; 2. The physical phenomenon of double cone rolling from lo ## LMEC-18/18A Free fall Apparatus [LMEC-18/18A Free fall Apparatus](https://www.laboratorysci.com/lmec-1818a-free-fall-apparatus-product/):LMEC-18 Free fall Apparatus Experiments 1. Verify the motion equation of free falling body; 2. Measurement of local acceleration of gravity. Main tec ## LMEC-19 Doppler Effect Experiment [LMEC-19 Doppler Effect Experiment](https://www.laboratorysci.com/lmec-19-doppler-effect-experiment-product/):Experiments 1. The resonant frequency of ultrasonic transducer; 2. Measuring Doppler effect 3. The velocity of sound is measured by Doppler effect. Ma ## LMEC-20 Inertial Mass Balance [LMEC-20 Inertial Mass Balance](https://www.laboratorysci.com/lmec-20-inertial-mass-balance-product/):Experiments 1. Understand the structure of inertial scale and master the principle and method of measuring the mass of objects with inertial scale; 2. ## LMEC-21 Vibrating String Experiment(string sound meter) [LMEC-21 Vibrating String Experiment(string sound meter)](https://www.laboratorysci.com/lmec-21-vibrating-string-experimentstring-sound-meter-product/):Main Experiments 1. The relationship between string length, linear density, tension and standing wave frequency is studied; 2. The propagation velocit ## LMEC-22 Friction Coefficient Measurement Device [LMEC-22 Friction Coefficient Measurement Device](https://www.laboratorysci.com/lmec-22-friction-coefficient-measurement-device-product/):Experiment 1. The measurement of static friction and dynamic friction; 2. Measurement of static friction coefficient and average dynamic friction coef ## LMEC-23 Design of Electronic Balance Experiment [LMEC-23 Design of Electronic Balance Experiment](https://www.laboratorysci.com/lmec-23-design-of-electronic-balance-experiment-product/):Experiments 1. Test the bridge impedance and insulation impedance; 2. Test the zero point output of the sensor; 3. The output of the sensor is tested ## LMEC-24 The Density of Liquid and Solid Experiment [LMEC-24 The Density of Liquid and Solid Experiment](https://www.laboratorysci.com/lmec-24-the-density-of-liquid-and-solid-experiment-product/):Experiments 1. Density measurement of solids with higher density than water; 2. Density measurement of solids with less density than water; 3. Measure ## LMEC-25 Water Wave Experiment [LMEC-25 Water Wave Experiment](https://www.laboratorysci.com/lmec-25-water-wave-experiment-product/):Experiment Observe the reflection, refraction, interference and other properties of water wave;   Specifications Description Specificati ## LMEC-26 Rolling Pendulum Experiment (energy conservation) [LMEC-26 Rolling Pendulum Experiment (energy conservation)](https://www.laboratorysci.com/lmec-26-rolling-pendulum-experiment-energy-conservation-product/):Experiment Demonstrates the law of conservation of mechanical energy and the transformation between translational and rotational kinetic energy of ro ## LMEC-27 Inertial Centrifugal Force Demonstrator [LMEC-27 Inertial Centrifugal Force Demonstrator](https://www.laboratorysci.com/lmec-27-inertial-centrifugal-force-demonstrator-product/):Function Demonstrates the principle of inertial centrifugal force. Specifications 1. The density of paraffin sphere is 0.8 g / cm3 2. The diameter ## LEAT-7A Temperature Properties of Various Temperature Sensors [LEAT-7A Temperature Properties of Various Temperature Sensors](https://www.laboratorysci.com/leat-7a-temperature-properties-of-various-temperature-sensors-product/):Experiments 1. AD590 current mode temperature sensor characteristic measurement; 2. Characteristic measurement of LM35 voltage type temperature sensor ## LEAT-3 Measuring Instrument for Specific Heat of Vaporization of Liquid [LEAT-3 Measuring Instrument for Specific Heat of Vaporization of Liquid](https://www.laboratorysci.com/leat-3-measuring-instrument-for-specific-heat-of-vaporization-of-liquid-2-product/):Experiments 1. The specific heat capacity of liquid is measured by cooling method, and the advantages and conditions of comparison method are understo ## LEAT-8 NTC Thermistor Experiment [LEAT-8 NTC Thermistor Experiment](https://www.laboratorysci.com/leat-8-ntc-thermistor-experiment-product/):Introduction 1. Measure the characteristics of NTC thermistor; 2. Design a digital thermometer with a linear display of 30～50℃. The main technica ## LEEM-18 AC Bridge Experiment [LEEM-18 AC Bridge Experiment](https://www.laboratorysci.com/leem-18-ac-bridge-experiment-product/):Experiments 1. Learn and master the balance conditions and measurement principles of the AC bridge; verify the balance conditions of the AC bridge; 2. ## LEEM-19 Comprehensive Experimental Instrument for AC/DC Circuit and Bridge [LEEM-19 Comprehensive Experimental Instrument for AC/DC Circuit and Bridge](https://www.laboratorysci.com/leem-19-comprehensive-experimental-instrument-for-acdc-circuit-and-bridge-product/):Introduction 1. Bridge arm resistance R1: 1Ω, 10Ω, 100Ω, 1000Ω, 10kΩ, 100kΩ, 1MΩ. Accuracy ±0.1%; 2. Bridge arm resistance R2: configure a se ## LEEM-20 Electric Meter Modification and Calibration Experiment (Milliammeter) [LEEM-20 Electric Meter Modification and Calibration Experiment (Milliammeter)](https://www.laboratorysci.com/leem-20-electric-meter-modification-and-calibration-experiment-milliammeter-product/):Experiments 1. Ammeter modification and calibration; 2. Modification and calibration of voltmeter; 3. Modification and design of ohmmeter. The main t ## LEEM-21 Digital Multimeter Assembly Experiment [LEEM-21 Digital Multimeter Assembly Experiment](https://www.laboratorysci.com/leem-21-digital-multimeter-assembly-experiment-product/):Main technical parameters 1. Resistance range: 200Ω, 2KΩ, 20KΩ, 200KΩ, 2MΩ; 2. Current range: 200μA, 2mA, 20mA, 200mA, 2A; 3. Voltage range: 200 ## LEEM-22 Four-Terminal Resistance Measurement Experiment [LEEM-22 Four-Terminal Resistance Measurement Experiment](https://www.laboratorysci.com/leem-22-four-terminal-resistance-measurement-experiment-product/):Experiments 1. Use single bridge and double bridge to measure the same small resistance, compare and analyze the measurement results, and estimate the ## LEEM-23 Multifunctional Bridge Experiment [LEEM-23 Multifunctional Bridge Experiment](https://www.laboratorysci.com/leem-23-multifunctional-bridge-experiment-product/):Main technical parameters 1. Bridge arm resistance R1: Configure a set of precision resistances: 10Ω, 100Ω, 1000Ω, 10kΩ, which are converted by sh ## LEEM-24 Unbalanced Electric Bridge Design Experiment [LEEM-24 Unbalanced Electric Bridge Design Experiment ](https://www.laboratorysci.com/leem-24-unbalanced-electric-bridge-design-experiment-product/):Experiments 1. Master the working principle of unbalanced electric bridge; 2. 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Measuring the surface magnetism of permanent magnets, t ## LEEM-28 Magnetic Balance (Old Angstrom type） [LEEM-28 Magnetic Balance (Old Angstrom type）](https://www.laboratorysci.com/leem-28-magnetic-balance-old-angstrom-type%ef%bc%89-product/):Experiments 1. Used for physical chemistry experiments or magnetic measurement; 2. Measure the magnetic susceptibility of paramagnetic materials, ## LMEC-2A Young's Modulus Apparatus [LMEC-2A Young's Modulus Apparatus](https://www.laboratorysci.com/lmec-2a-youngs-modulus-apparatus-product/):Introduction Young's modulus of elasticity is one of the basis for selecting materials for mechanical parts, and it is a commonly used parameter in e ## LCP-28 Abbe Imaging and Spatial Filtering Experiment [LCP-28 Abbe Imaging and Spatial Filtering Experiment](https://www.laboratorysci.com/lcp-28-abbe-imaging-and-spatial-filtering-experiment-product/):Experiments 1. 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