Critical temperature thermistor how to use1

Thermistor is a kind of sensitive element, has a good stability, small size, flexible use and other advantages. When we were in the use of thermistor for thermistor type is also need to know, thermistors can be divided into positive temperature coefficient thermistor, negative temperature coefficient thermistor, critical temperature thermistor. Project is mainly to introduce the critical temperature for everyone today thermistor, hope you can help to you.

critical temperature thermistor CTR ( 临界温度电阻) Negative resistance mutation characteristics, under a certain temperature, resistance JiJu decreases with increasing temperature, has a great deal of negative temperature coefficient of a material is vanadium oxide, barium, strontium, phosphorus and other elements of mixed sintering body, is half a glass of semiconductor, also calls the CTR thermistor for glass state temperature change along with the adding germanium, such as tungsten, molybdenum oxide and this is due to the incorporation of different impurities, the vanadium oxide lattice spacing is different if the vanadium pentoxide in appropriate reduction atmosphere into vanadium dioxide, bigger resistance rapidly varied temperature; If further reduction of vanadium trioxide, the leaps disappear produce resistance rapidly varied temperature corresponding to the half glass semiconductor material quick location, therefore produce - semiconductor Metal phase shift CTR can alarm temperature control applications such as

thermistor of theory research and application development has made remarkable achievements with the application of high, refined, sharp technology, the conductive mechanism and the application of thermal resistor of the deeper exploration, as well as to the excellent performance of the further research of new materials, will get rapid development

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key words: thermal resistance, thermocouple, thermal resistance, platinum resistance, PT100, PT1000, pressure sensor and digital temperature sensor