Can measuring temperature be used as a substitute for the \"pressure dew point\"?
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Can measuring temperature be used as a substitute for the \"pressure dew point\"?
The probes are generally the same; the only difference is that the unit displayed on the gauge is temperature or ppm. Depending on the principle of operation of the analyzer, the method of measurement also varies
Hehe, I’m not sure what you mean. If it’s the air after passing through a molecular sieve, regarding the dew point, obviously the temperature and pressure are known at that time. But there are indeed several ways to express the dew point: in terms of temperature, PPM, etc==
Answering the original question: Temperature and pressure can be used to indicate the water content in the air, but they cannot measure it directly. Temperature and pressure are conditions for the dew point, which indicates the saturated water content in a gas under those conditions. It is expressed in terms of dew point temperature and dew point pressure; at a constant pressure, the lower the dew point temperature, the less moisture content there is ； At a constant temperature, the higher the dew point pressure, the lower the moisture content. (For reference)