The characteristics of NTC thermistor resistance.Smart Human Body Infrared Sensor Vendor

　　NTC thermistor refers to the phenomenon and material of the aid resistance with a decrease in the index relationship with the temperature rising resistor and the negative temperature coefficient. This material is high -performance ceramics with high purity materials and close to the theoretical density structure. Generally, two or more metal oxides such as manganese, copper, silicon, cobalt, iron, nickel, zinc, etc. Semiconductor ceramics made from sintering and other processes. While achieving miniaturization, it also has the characteristics of resistance value, small temperature characteristics, and fast response to various temperature changes, which can be detected with high sensitivity and high precision.

　　High sensitivity, usually the temperature change by 1 ° C is about 1%to 6%, the range of the resistance temperature coefficient is wide, and the absolute value is 10 ~ 100 times larger than the average metal resistance;

　　The working temperature range is wide, the normal temperature devices are applicable to -55 ℃ ～ 315 ℃, the applicable temperature of the high-temperature device is higher than 315 ° C (currently the highest can reach 2000 ° C), and the low temperature device is suitable for -273 ° C ~ -55 ° C;

　　The volume is small and can measure the temperature of the gaps, cavity and biological blood vessels that other thermometers cannot measure;

　　Easy to use, the resistance value is at any choice between 0.1 and 100kΩ;

　　Raw material resources are rich and low in price; and it is easy to process into complex shapes, which can be produced in large quantities;

　　Good stability, strong overload capacity, and good performance.

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