Shanghai knowledge thermometer manufacturers explanation bimetallic thermometer instrument

Shanghai thermometer manufacturers instrument focus bimetallic thermometer for 20 years, let us to understand the knowledge bimetallic thermometer. The concept of the bimetallic thermometer: bimetallic thermometer is used by the different expansion coefficient of the two metals constitute bimetallic element, also called a bimetallic strip as a temperature sensing element, instrument used to measure temperature. The bimetallic thermometer features are: double metal thermometer compared with glass mercury thermometer used in industry, has the following characteristics: mercury-free harm easy to use, durable application range is wide, is commonly - temperature measurement range 80 ~ 600 ℃ in many occasions to replace industrial structure of glass liquid thermometer bimetallic thermometer: above the structure of the bimetallic thermometer, it is by the fixed end, spiral bimetallic strip ( Thermal element) , protection tube, pointer shaft, nuts, watch case, dial, Pointers and other parts. Bimetallic thermometer works: the operation principle of the bimetallic thermometer is to fix one end of the bimetallic strip welding, called the fixed end, another end is called the free end, connection point axis, movement, pointer, etc. When surrounding temperature changes, the free end then change and deflection Angle, and then pass the movement pointer deflection, indicates that the temperature of the measured on the dial. Bimetallic thermometer three forms: the axial type: refers to the axis of the protecting tube and dial into vertical plane in the form of radial type: refers to the axis of the protecting tube with dial plane into a parallel in the form of a universal type: refers to the axis of the protecting tube with dial plane Angle can be adjusted freely such commentary ever let you know more about the form of bimetallic thermometer?