2013年10月8日星期二

Were developed thin-film resistance thermometer miniature circuit work

Currently industrial temperature measurement is used in copper and platinum wire as effective components contact resistance thermometer. Considering the characteristics of microelectronics, this thermometer has the following disadvantages: mass weight (which in solution temperature during the rapid flow of the inert problem is very important), in the structure of rare and precious metals to be used,  mcb circuit breaker  to use the manual assembly methods; due to size large, in a small object to be measured is applied within the temperature range should be restricted. Therefore, for the development of thin-film resistance  Electric energy meter circuit work. Metal resistance R and the temperature T of the equation can be calculated as wire resistance thermometer electrical parameters based plant  power transformers coefficient of resistance song households, T a temperature in the structure of the wire resistance thermometer is placed in a stainless steel protective tube sensing element composition, and a connection detection instrument terminals. metal film resistors temperature dependence only when the film thickness is greater than nx100nm when established.

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