Leave some bimetallic thermometer waterproof corrosion applicability is wide1

Leave some bimetallic thermometer is refers to the pointer is not as the temperature falls, still stay in once reached the highest point. Usually has two hands, one for red, one is black, red for save some Pointers. Leave some bimetallic thermometer is a kind of field detection instrument, measurement of low temperature liquid, steam and gas medium can be obtained. Save the principle of the bimetallic thermometer is applied thermal expansion principle of temperature measurement, belong to solid expansion thermometer. Leave some bimetallic thermometer based on solid heat expansion principle, measuring temperature is usually put the two pieces of expansion coefficient difference is relatively large pieces of metal stitch welding together, constitute a bimetallic temperature sensing element. When the temperature changes, because the bimetallic strip of the materials of the two different linear expansion coefficient is relatively large and produce different expansion and contraction, leading to the curving deformation of bimetallic strip. As there are different according to different deformation amount of momentum transfer, the amount of rotation drive connection shaft, shaft drive at the other end of the indicating needle, indicating pointer is just on the correct reading, indicate the temperature.