Semiconductor diodes bipolar junction transistors field-effect transistors transistor amplifiers frequency response operational amplifiers differential and multistage amplifiers integrated circuits.

This paper presents a well water temperature monitor, and its use of PN junction temperature sensor as temperature components, integrated circuits used for ICL7126 and other A / D converter.

Infrared Sight and unreasonable impact on the ambient temperature the temperature change will induce a series of control circuits such as rendering local overheating causing chip junction area burned;