What kind of common bimetallic thermometer are there?

Bimetallic thermometer is a kind of measurement in the field of low temperature test instrument. 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. So what kind of common bimetallic thermometer are there? Common bimetallic thermometer has the following categories: type 1, axial bimetallic thermometer, type axial 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. Type 2, radial bimetallic thermometer, radial type of bimetallic thermometer is dial with heat pipe in parallel structure, also known as the straight bimetallic thermometer. Bimetallic thermometer 3, universal type, universal type is the main characteristic of the bimetallic thermometer meter and the connection mode of the heat pipe, they are via a can 180 & deg; Rotating metal hose connection, this connection mode will allow universal type bimetallic thermometer meter can be 90 & deg; Rotation, this also is & other; Universal type bimetallic thermometer & throughout; The name of reason.