Single magnet surface thermometer is the mercury?

Single magnet surface thermometer is a kind of industrial equipment used to measure the surface temperature of the thermometer. Its working principle is based on the principle of solid heat expansion, the two pieces of expansion coefficient difference is very big pieces of metal welded together. When the temperature changes, the difference is very big, caused the different expansion coefficient of expansion and contraction, the deformation of sheet metal bending. According to different deformation and produce different momentum, momentum to drive the connection shaft and the other end of the indicating needle, indicate the temperature. Thus, single magnet surface thermometer belongs to the bimetallic thermometer, so single magnet surface is not mercury thermometer. Single magnet surface thermometer is also very convenient to use and only need to put the single magnet adsorption on the surface of the measured medium that clean surface thermometer, wait 15 minutes later, as the temperature dial indicator on the surface of the measured medium temperature. Using the single magnet surface thermometer is important to note the magnet thermometer can't adsorption on the stainless steel material, should pay attention to clean up and check when using, regularly test the measured values.