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Inside the pointer thermometer?

2020-11-26

JVTIA

212

Pointer thermometer belongs to one of the most common to double metal thermometer, so what is the structure of the double metal thermometer? Bimetallic thermometer is a kind of measurement in the field of low temperature test instrument. Widely used in industry. Bimetallic thermometer by pointer, watchcase, metal protection tube, pointer shaft, bimetal thermal element, fixed end, dial. Its thermal components normally around into a spiral, one end fixed and the other end of the connection point axis. When temperature changes, temperature sensing element of bending rate changes, and through the pointer shaft drives the pointer deflection, shows the change in temperature on the dial. See below:

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