The application of metal surface thermometer

Metal surface thermometer: used for measuring the surface temperature of the instrument. It is a classification of thermometer, it is specially used for precise measurements of surface temperature. Heat treatment of castings, forgings, gas pipe, steam pipe, wall, etc. Various kinds of metal surface of the furnace temperature measurement, the temperature is from dozens of degrees, a few baidu, for such a temperature, the most commonly used method is to use direct contact measurement method. It is the principle of heat bilges cold shrink, that USES bimetallic strip let heat part and direct contact with the metal surface to be tested, then the dashboard display directly metal surface temperature. The composition of the metal surface thermometer: made up of the dial and thermal components. It is to rely on the double metal heat bilges cold shrink principle of sensors to work, by contact spring or magnet at the bottom of the thermometer to measure the metal surface and reading. This type of double metal surface thermometer can range from - 40 c to 500 c, the precision can be & plusmn; 3%. For some of the requirements for accuracy is not high occasions, the use of thermometer of cheap is a money and beauty. Metal surface temperature measurement is a major aspect of temperature measurement. Special used in machinery, metallurgy, energy and defense departments measurement are very common.