Generally used in low temperature thermometer

Generally used in low temperature thermometer? Below the instrument to ask you answer: generally used in low temperature bimetallic thermometer, because of the bimetallic thermometer is a kind of measurement in the field of low temperature test instrument. Bimetallic thermometer can display temperature field, intuitive and convenient; Safe and reliable, long life, fast reading. Bimetallic thermometer can be directly measured in the process of various production - 80 ℃ ~ + 500 ℃ within the scope of liquid, steam and gas medium temperature. Principle structure of bimetallic thermometer is 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. In order to meet the needs of practical production, test of low temperature using bimetallic thermometer response speed, a thermometer is very popular.