What's the use of bimetallic thermometer inserted depth?

We are buying bimetallic temperature time, frequently asked & other; How much is the bimetallic thermometer inserted depth? ” What is the meaning of the insertion depth? It is what role for bimetallic thermometer? Today let's say the problem. Bimetallic thermometer inserted depth refers to the length of the bimetallic thermometer heat pipe ( Insertion depth is not even the teeth) Or is the length of the heat pipe and a spiral tooth length ( Insert depth teeth) 。 And the heat pipe is too long or too short will cause temperature measurement, this shows the importance of the insertion depth. Bimetallic thermometer working principle is to 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 mainly the temperature of the measurement of low temperature field, so widely used in all kinds of industrial equipment.