Cover NTC temperature sensor.Moving object detection module manufacturer

　　NTC thermistor (negative temperature coefficient thermistor) is the abbreviation of Negative Temperature Coefficient. It means negative temperature coefficient. Materials or components, it is made of manganese, cobalt, nickel and copper and other metal oxides, which are made from ceramic technology. These metal oxide materials are semiconductor -like, and are completely similar to semiconductor materials such as 锗 and silicon in conductive. When the temperature is low, the number of loads (electrons and holes) of these oxide materials is small, so its resistance value is high. As the temperature increases, the number of loads increases, so the resistance value decreases.

　　In specific applications, almost all NTC thermal resistance, regardless of its performance, structure shape, size, can be used as a temperature sensing element, but its performance, material and structure size will determine its temperature measurement range, temperature measurement sensitivity, and The difference between the speed of perception temperature. The existing NTC temperature sensors of various shapes on the market have disadvantages such as difficult contact and installation with the measured objects when directly measured temperature.

　　NTC temperature sensor is to encapsulate high -precision, high reliability NTC thermistor insulation, heat conduction, waterproofing aggregate material (sometimes with the help of the shell probe) into the required shape, extend the lead, and use a set of terminal connectors to form a set of sets It is convenient for the combination of thermal resistance that installation or long -distance measurement and control temperature.

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