The radial and axial bimetallic thermometer

Bimetallic thermometer 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. Common bimetallic thermometer are radial bimetallic thermometer, axial bimetallic thermometer and universal type of bimetallic thermometer. As shown, the radial and axial bimetallic thermometer is the biggest difference is not the same as the header and thermal connection direction. Do you know why this respectively to make the two? In fact, it is well known that the use of the bimetallic thermometer field widely, the installation environment also each are not identical, the requirement for the shape of the bimetallic thermometer is much, so there will be a radial, axial, universal three connection mode. The radial bimetallic thermometer readings is relatively convenient and high cost performance, all the current domestic choose radial bimetallic thermometer is more.