Experimental Apparatus of PN Junction Characteristics

Experiments :

• Measurement of the relationship between PN junction diffusion current and junction voltage, with verification of the exponential distribution law through data analysis.

Experiments :

• Determination of the Boltzmann constant with measurement error less than 2%.

Experiments :

• Study of operational amplifier-based current-to-voltage conversion for measuring weak currents in the range of 10⁻⁶ A to 10⁻⁸ A.

Experiments :

• Measurement of the relationship between PN junction voltage and temperature, and calculation of voltage-temperature sensitivity.

Experiments :

• Approximate determination of the energy band gap of silicon semiconductor material at 0 K.

DC Power Supply :

• Adjustable DC voltage source: 0–1.5 V.
• Adjustable DC current source: 1–3 mA.

LCD Measurement Module :

• Display Resolution: 128 × 64 pixels.
• Voltage Measurement Range: 0–4095 mV, resolution 1 mV.
• Voltage Measurement Range: 0–40.95 V, resolution 0.01 V.

Experimental Circuit Module :

• Includes operational amplifier, connector sockets, and multi-turn potentiometer.
• External semiconductor devices provided for advanced experimentation.

Heating System :

• Dry-well copper heater with adjustable temperature control.
• Temperature Control Range: Ambient temperature to 80.0°C.
• Temperature Resolution: 0.1°C.

Temperature Measurement :

• Digital temperature sensor for precise temperature monitoring.

Designed For :

• Physics Lab Experiments from Atico Exports.