Bimetallic thermometer calibration?

Speaking of the bimetallic thermometer calibration, have to say about the working principle of the bimetallic thermometer bimetallic thermometer screw working principle is to round into a shape of thermal bimetal 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. 1. Plant self-checking compared with standard glass rod thermometer, adjust, control within the error range. 2. Take bimetallic thermometer to the third party calibration qualified third party calibration, have a fee, but you can issue the calibration report.