BW2 High temperature superconducting material characteristic testing deviceDetailed product description：

The BW2 high-temperature superconducting material characteristic testing device consists of the following parts

PZ158 DC digital voltmeter (5 ± 1 μ V);  
BW2 type high-temperature superconducting material characteristic testing device (including 2 DC digital voltmeters, 3 constant current sources, 1 constant voltage source, 3 standard resistors, and several conversion switches);  
Low temperature thermostat (superconducting sample, liquid level meter, platinum resistance, silicon diode, and thermocouple thermometer)
Stainless steel Dewar vessel and bracket.

BW2/1 and BW2/2 are improved versions of the original BW2. BW2/2 is equipped with a BW2 high-temperature superconducting material characteristic testing device computer interface (automatic control dedicated interface), which uses advanced dedicated interface circuits, experimental data acquisition, storage, and processing software. Users can simultaneously detect and analyze the experimental process in real-time through multi-channel and graphical methods, automatically record and process data, and conduct more in-depth comparative research on related physical phenomena (the relationship between the resistance of high-temperature superconducting materials and temperature changes, as well as the temperature response characteristics of platinum resistance, silicon diode forward voltage, and copper constantan thermoelectric force), further improving students' ability and scientific literacy to comprehensively solve practical problems.
BW2/3 is a further improved version, which installs the external computer interface box of BW2/2 inside the entire BW2/1 machine, reducing the connection between each other and improving reliability.