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Changchun Changcheng Teaching Instrument Co., Ltd
Physical properties of PN junction (Boltzmann constant analyzer)
NegotiableUpdate on 05/06
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Overview
1、 Experimental content: $r $n1. Measure the relationship between PN junction diffusion current and junction voltage, and accurately measure the Boltzmann constant; $r $n2. Learn to use operational amplifiers to form a current voltage conversion circuit for measuring weak currents; Measure the relationship between the PN junction voltage and temperature, and determine the sensitivity of the junction voltage to temperature changes; Approximately calculate the bandgap width of semiconductor (silicon) materials at 0K.
Product Details
1、 Experimental content：
1. Measure the relationship between PN junction diffusion current and junction voltage, and accurately measure the Boltzmann constant;
2. Learn to use operational amplifiers to form current voltage conversion circuits for measuring weak currents;
3. Measure the relationship between PN junction voltage and temperature, and determine the sensitivity of junction voltage to temperature changes;
4. Approximate the bandgap width of semiconductor (silicon) materials at 0K.
2、 Main technical parameters:
1. DC power supply: 0-1.5V adjustable DC power supply, 1mA~3mA adjustable DC power supply set
2. LCD display: LCD screen resolution: 128 × 64 pixels
3. Voltage display: 2 sets, range: 0-4095mV; 0-40.95V
4. Thermostatic device: dry well type, temperature control range: room temperature to 80 degrees Celsius, temperature control resolution of 0.1 degrees Celsius
1、 Experimental content：
1. Measure the relationship between PN junction diffusion current and junction voltage, and accurately measure the Boltzmann constant;
2. Learn to use operational amplifiers to form current voltage conversion circuits for measuring weak currents;
3. Measure the relationship between PN junction voltage and temperature, and determine the sensitivity of junction voltage to temperature changes;
4. Approximate the bandgap width of semiconductor (silicon) materials at 0K.
2、 Main technical parameters:
1. DC power supply: 0-1.5V adjustable DC power supply, 1mA~3mA adjustable DC power supply set
2. LCD display: LCD screen resolution: 128 × 64 pixels
3. Voltage display: 2 sets, range: 0-4095mV; 0-40.95V
4. Thermostatic device: dry well type, temperature control range: room temperature to 80 degrees Celsius, temperature control resolution of 0.1 degrees Celsius
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