That is commonly used in industrial thermometer have? Such as double metal thermometer, etc

Thermometer is a kind of common measuring instrument has a certain application in many industries, including the thermometer application in industry is the most widely. Bimetallic thermometer role in industry is very big, can provide very accurate testing data for industry. Is commonly used in the industrial thermometer what everyone know? 1, bimetallic thermometer, bimetallic thermometer is a kind of measurement in the field of low temperature test instrument. Bimetallic thermometer is made of round shape into threaded heat dual metallic piece as temperature sensing element, and put it in a protective sleeve, one end fixed ( Fixed end) And the other end, The free end) Connection on a thin shaft, shaft end is equipped with a pointer. When the temperature changes, temperature sensing element of the free end immediately rotation, thus fine axis pointer to produce angular displacement, indicates that the change in temperature on the dial. 2, pressure type thermometer, pressure type thermometer is material basis within a closed system work principle of the volume change with the temperature or pressure of work. Instrument closed system composed of bulb, capillary and elastic element, wen bags as working medium, when measuring temperature, insert the bulb of the measured medium, affected by the medium temperature, temperature package internal working medium volume or pressure changes, the capillary pass this change to the elastic element ( Such as spring tube) , components elastic deformation, displacement of the free end, with the aid of transmission mechanism, drive the pointer indicates the temperature value on the dial. 3, electronic thermometer, electronic thermometer compared with traditional thermometer, temperature using digital tube display, output has reading convenient, accurate temperature stability, high precision, wide measurement range, and the advantages of low energy consumption, very suitable for daily temperature measurement. 4, high water meter: a body surface temperature and pressure, pressure and temperature of the analyte can be read at the same time, use a table. 5, thermometer glass rod, glass rod by a thermometer with a liquid glass bulb, heat, capillary and scale and safety package of five parts. When the measured medium, put a thermometer in heat in thermal fluid volume expansion in heated, thermal fluid in capillary height will vary with different temperature being measured, which can be read on the scale of measured temperature value.