China Wholesale Hall Effect Suppliers – LEEM-19 Comprehensive Experimental Instrument for AC/DC Circuit and Bridge – Labor

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Optics Experiment Kit has 26 fundamental and modern optics experiments, it is developed for general physics education at universities and colleges. It provides a complete set of optical and mechanical components as well as light sources. Most optics experiments required in general physics education can be constructed using these components, from the operation, students can enhance their experimental skills and problem-solving ability.

Note: a stainless steel optical table or breadboard (1200 mm x 600 mm) is recommended for this kit.

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China Wholesale Hall Effect Suppliers – LEEM-19 Comprehensive Experimental Instrument for AC/DC Circuit and Bridge – Labor Detail:

Introduction

1. Bridge arm resistance R1: 1Ω, 10Ω, 100Ω, 1000Ω, 10kΩ, 100kΩ, 1MΩ.
Accuracy ±0.1%;
2. Bridge arm resistance R2: configure a set of resistance boxes: 10kΩ+10×(1000+100+10+1)Ω, accuracy ±0.1%;
3. Bridge arm resistance R3: Configure two sets of synchronous resistance boxes R3a, R3b, which are installed internally on the same double-layer transfer switch, and the resistance changes synchronously: 10×(1000+100+10+1+0.1)Ω , The accuracy is: ±0.1%;
4. Capacitor box: 0.001~1μF, minimum step 0.001μF, accuracy 2%;
5. Inductance box: 1～110mH, minimum step 1mH, accuracy 2%;
6. Multi-function power supply: DC 0～2V adjustable power supply, sine wave 50Hz～100kHz; square wave 50Hz
～1kHz; the frequency is displayed by a 5-digit frequency counter;
7. AC and DC dual-purpose digital galvanometer: use digital display voltmeter: range is 200mV, 2V; input can choose AC, DC, unbalanced three modes, there is a sensitivity adjustment potentiometer.
8. When the instrument is used as a single-arm bridge, the measuring range: 10Ω～1111.1KΩ, 0.1 level;
9. When the instrument is used as a double-arm electric bridge, the measuring range: 0.01～111.11Ω, 0.2 level;
10. The effective range of the unbalanced bridge is 10Ω～11.111KΩ, and the allowable error is 0.5%;
11. There are two types of measured resistance inside the instrument: RX single, RX double, two types of capacitors with different capacities and different losses; two types of inductances with different inductances and different Q values;
12. The unbalanced electric bridge is matched with the thermistor temperature sensor, and the linear digital thermometer is designed with a resolution of 0.01℃; the thermistor can be used in conjunction with the temperature sensor of the typical sensor experiment instrument.
13. Research experiment: study the relationship between capacitance, loss and bias voltage;
14. Research experiment: study the relationship between inductance and bias current.

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