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Explanation related applications of thermal resistance characteristics

2020-11-07

JVTIA

225

Thermal resistance itself belongs to the low temperature area, often using a temperature detector, and the characteristics of the thermal resistance is very high on the accuracy of measurement, and performance is more stable. One of platinum-rhodium thermal resistance belong on the precision of measurement, and its not only could use in industrial temperature measurement, will also be made into a standard benchmark instrument to use. And thermal resistance are the temperature of the substrate, so the value of the resistance will be increased with the increase of temperature change, due to the thermal resistance of basic belong to pure metal materials manufacturing and become, currently on the market for the widely used should belong to copper and platinum I two kinds, but have used rhodium, nickel, manganese midian and used different material to make into heat resistance. Single from thermal resistance can be obtained on the principle of measuring temperature, when there are changes in the temperature being measured, elements of heat resistance and resistance change to measure directly, so the heat resistance of different wires, such as lead the measuring of temperature change on the resistance will cause serious influence, in order to effectively eliminate the effects of the resistance of the lead, normal will choose three wire or four wire system.

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