Working principle of the temperature sensor
metal expansion principle design of the sensor in the environmental temperature change after will produce a corresponding extension, so the sensor can be in a different way to signal the response.
Bimetallic type sensor bimetallic strip by two different expansion coefficient of metal stick together and form, with temperature changes, the material is A metal expansion degree is higher than the alternative, sheet metal bending.
The bending curvature can be converted into a single output signal.
Bimetallic rod and tube sensor temperature sensor with temperature, metal tube (
Length increases, and not expansion of steel rod (
Length does not increase, such as the change of position, the metal tube linear expansion can be passed.
This, in turn, linear expansion can be converted into a single output signal.
The deformation curve of liquid and gas design changes in the temperature sensor, liquid and gas will also generate volume change accordingly.
Multiple types of structure can convert the change of this expansion to the change of the position, this position change output (
Potentiometer, deviation of induction, and blocked flow board, etc. )
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