Classification of thermistors.Infrared digital sensor module

　　1. Semiconductor thermistor materials

　　These materials include single crystal semiconductors, polycrystalline semiconductors, glass semiconductors, organic semiconductors and metal oxides. They all have a large temperature coefficient of resistance and high resistivity, and the sensors composed of them are very sensitive.

　　2. Metal thermistor material

　　The material is widely used in RTD temperature measurement, current limiters and automatic thermostatic heating elements. Such as platinum resistance thermometers, nickel resistance thermometers, copper resistance thermometers, platinum side temperature sensors, etc., have obvious high precision and stability in various media (including corrosive media).

　　3. Alloy thermistor material

　　Alloy thermistor material is also called thermistor alloy. This alloy has high resistivity, and the resistance value is more sensitive to the change of temperature, which is a good material for making temperature-sensitive sensors.

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