Bimetallic thermometer internal structure

Bimetallic thermometer internal structure pointer, pointer shaft, bimetallic temperature sensing element, dial, etc. Bimetallic thermometer is internal structure of the main heat element: a bimetallic strip. A linear spiral and plane spiral, linear spiral bimetallic thermometer is mainly used for probe type, and planar spiral bimetallic thermometer is mainly used for surface and interior with double metal thermometer. Bimetallic thermometer is a round shape into threaded heat bimetallic strip as thermal devices, and put it in a protective sleeve tube, one end is fixed, known as the fixed end, the other end of the connection on a thin shaft, called the free end. Spool at the free end is equipped with a pointer. When the temperature changes, the resulting thermal devices the free end of the rotation, drive the thin axis from the Angle of the pointer changes, corresponding temperature indicator on the dial. Bimetallic thermometer is a kind of measurement in the field of low temperature test instrument. Bimetallic thermometer can be directly measured in the process of various production - 80 ℃ ~ + 500 ℃ within the scope of liquid, steam and gas medium temperature. Bimetallic thermometer is used for installation in pipelines, ships, factories and machinery.