Pressure type thermometer is the most common mechanical measurement instrument

Thermometer table there are a lot in our daily life, including the bimetallic thermometer, electronic thermometer, etc. , in addition to these, there is one of the most common mechanical thermometer table is pressure type thermometer, is very common in life. The principle of pressure type thermometer is based on the sealing temperature measuring system of liquid evaporation changes in the relationship between saturated vapor pressure and temperature, the temperature measurement. When bulb feel temperature, saturated vapor produced the corresponding pressure in the closed system, cause the change of curvature elastic element, make its produce a shift in the free end, again by the displacement amplification mechanism of gear into the indicated value. And can realize remote contact signals, heat resistance, 0 10 ma, or 4 20 ma signal. Is currently the most widely use scope, performance is one of the most comprehensive mechanical thermometer table. Pressure type thermometer and the development of seriation thermometer table, overcomes the original single instrument performance, poor reliability and the shortcoming of the large package, and to reduce the temperature measuring element size 1/30 or 1/60, creatively to thermal resistance sensors installed in the temperature measuring element, realize the function of mechanical and electrical integration of temperature measurement. Formed by liquid pressure type thermometer for basic thermometer table of far eastone, shock, corrosion, electric contact, multi-function series, such as temperature signal transmitting temperature instrument. Pressure type thermometer with a bulb small volume, fast response, high sensitivity and direct reading characteristics, almost set the glass rod thermometer, bimetallic thermometer, all the advantages of the gas pressure thermometer, it can be made into shock, anti-corrosion type. So the pressure type thermometer has great potential for use, in later life, with the needs of different areas, can see the figure of the pressure type thermometer in many places.