• 压力式温度计的主要构造
  • 本站编辑:杭州博阳仪器仪表有限公司发布日期:2019.08.30

Main Structure of Pressure Thermometers
Temperature packet: It is a component that is in direct contact with the measured medium to sense temperature changes. Therefore, it is required to have high strength, small expansion coefficient, high thermal conductivity, and corrosion resistance. The package can be made of copper alloy, steel or stainless steel depending on the working substance to be filled and the medium to be measured.
2, capillary: It is made of copper or steel and other materials cold pull into a seamless round tube, used to transmit changes in pressure. Its external diameter is 1.5 ~ 5mm and its internal diameter is 0.15 ~ 0.5 mm. If it is smaller in diameter and longer in length, the delay in transmitting pressure is more serious. In other words, the more insensitive the thermometer is to the temperature to be measured. However, at the same length, the finer the capillary, the higher the accuracy of the instrument. Capillaries are easily broken and broken, so they must be protected. The metal hose can be used as a protective sleeve for infrequently bending capillaries.
3, spring tube: It is a general pressure meter for elastic components.
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