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