China Wholesale Magnetization Curve Pricelist – LEEM-10A Experimental Apparatus of PN Junction Characteristics – Labor

Short Description:

LMEC-21 uses steel string and oscilloscope to measure the standing wave and vibration of uniform string, and can expand innovative experiments, this instrument needs self-prepared oscilloscope.
LMEC-21A is a cheaper version which don't need oscilloscope, The purpose of the instrument is to set up interesting string sound experiments. It can not only do the traditional basic string vibration experiment, but also expand to the applied experiment to calibrate the intonation of string instruments and learn the working principle of string instruments.

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China Wholesale Magnetization Curve Pricelist – LEEM-10A Experimental Apparatus of PN Junction Characteristics – Labor Detail:

Experiments

1. The relation between the PN junction diffusion current and the junction voltage is measured, and this relation shall be proved to follow the exponential distribution law through data processing;

2. The Boltzmann constant is measured more accurately(The error shall be less than 2%);

3. Learn to use operational amplifier to form a current-voltage converter to measure the weak current from 10^-6A to 10^-8A;

4. The relation between PN junction voltage and temperature is measured and the sensitivity of junction voltage with temperature is calculated;

5. Approximate to calculate the energy gap of the semiconductor (silicon) material at 0K.

Technical Indexes

1. DC power supply

An adjustable 0-1.5V DC power supply;

An adjustable 1mA-3mA DC power supply.

2. LCD measurement module

LCD resolution ratio: 128×64 pixels

Two digital indicators of voltage Range: 0-4095mV, Resolution ratio: 1mV

Range: 0-40.95V, Resolution ratio: 0.01V

3. Experimental device

It is composed of operational amplifier LF356, connector socket, multi-turn potentiometer, etc. TIP31 and type 9013 triode are externally connected.

4. Heater

Dry well copper adjustable heater;

Temperature control range of thermostat: Room temperature to 80.0℃;

Resolution ratio of temperature control 0.1℃.

5. Temperature measuring equipment

DS18B20 digital temperature sensor

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No matter new consumer or outdated shopper, We believe in lengthy expression and trusted relationship for China Wholesale Magnetization Curve Pricelist – LEEM-10A Experimental Apparatus of PN Junction Characteristics – Labor , The product will supply to all over the world, such as: Turin, Philadelphia, Ethiopia, we sincerely hope to establish a good and long-term business relationship with your esteemed company through this opportunity, based on equality, mutual benefit and win-win business from now to the future. "Your satisfaction is our happiness".

This supplier stick to the principle of "Quality first, Honesty as base", it is absolutely to be trust.

By Irene from St. Petersburg - 2017.09.16 13:44

This company conforms to the market requirement and joins in the market competition by its high quality product, this is an enterprise that have Chinese spirit.

By Geraldine from Bangalore - 2017.08.18 18:38

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