Insertion depth on the influence of the bimetallic thermometer

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, inserted depth of the bimetallic thermometer is used to heat part of its length. Today we speak of insertion depth on the influence of the bimetallic thermometer. Insert depth of bimetallic thermometer mainly have two aspects. The first is the range of measuring temperature, because the measuring temperature range determines the double the length of the metal sensors ( Double metal sensors installed in the bottom of the heat pipe) 。 In general, from heat tube end, at least 50 mm, namely more than 50 mm length can be; Second associated with installation of bimetallic thermometer, said pipe using bimetallic thermometer, for example, if the connection pipe installed on the base flange, etc. , or to count all the length of these parts. In view of these considerations, insertion depth of the bimetallic thermometer is very important.