Bimetallic thermometer needs to know some basic common sense

In the environment of temperature change, the thermometer helped us a lot of busy, with a thermometer, is the direction of the living standard, but some people don't know what is the bimetallic thermometer? What is the principle of the bimetallic thermometer? What are the bimetallic thermometer structure? Today we introduce some basic knowledge bimetallic thermometer. Bimetallic thermometer temperature sensing element is composed of two layers of linear expansion coefficient difference is relatively large pieces of metal stitch welding together, one end of the element as the fixed end, on the other side of the free end. When the temperature changes, because the bimetallic strip of material is different, linear expansion coefficient of relatively large differences, and produce different expansion and contraction, leading to the curving deformation of bimetallic strip, equipped with actuator (at the free end Pointer and dial indication in temperature) So that it can directly show the temperature value. Bimetallic thermometer pointer plate with the direction of protecting tube connection bimetallic thermometer can be divided into: (1) type axial bimetallic thermometer: pointer vertical connection tube plate and protection. (2) the radial type bimetallic thermometer: pointer GuanPing line connection plate and protection. ③135度; The bimetallic thermometer: pointer tube plate and protection into 135 & deg; The connection. (4) universal type bimetallic thermometer: pointer plate connected to the protecting tube Angle can be arbitrary adjustment. The shape of the bimetallic thermometer temperature sensing element has a planar spiral type and linear spiral type two kinds, the temperature measurement range roughly 80 - c Usually is 1 600 c, precision grade. Level 5 or so. Double thermometer thermometer good vibration resistance, fast response speed, small volume, good linearity and relatively stable, some products also have high temperature performance. Life everywhere there is a problem, as long as careful, we can find, so, common sense of the bimetallic thermometer question whether have further understanding? I hope it can help you.