Daily Question on Automation Theory Knowledge (8.4)

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Process and instrumentation are inseparable; to help everyone gain a better understanding of the basics of instrumentation, we have launched the \"One Question per Day\" series – just reply to get the questions. To encourage ongoing participation from everyone! Get a 3 Wealth reward just for participating! I hope everyone will participate actively, learn together, and make progress together! ! ! True or False: 21. Is the following statement correct? Classification of pressure thermometers: Pressure thermometers can be classified into the following categories based on the working medium used: (1) Liquid type – This type utilizes the expansion of a liquid when heated to cause the pointer to move, thereby indicating the temperature. (2) Gas type: It displays temperature by utilizing the relationship between gas pressure and temperature at high temperatures. (3) Steam type: It uses the property that the saturated vapor pressure of low-boiling-point liquids changes with temperature to measure temperature. The answer to this question is: Yes. If you are not very familiar with the structure of pressure-type thermometers, you can read a previous post that contains a schematic diagram of its structure.