Method and system for measuring relative humidity at high temperature and high pressure

Abstract

The invention discloses a system for measuring relative humidity at high temperature and high pressure, and relates to the field of humidity measurement. The system comprises a zirconia sensor, an environmental temperature collecting module, an environmental pressure collecting module, a main controller and a preheating module, wherein the preheating module is connected with a first output end of the main controller; the preheating module is used for preheating a zirconia sensor; the zirconia sensor is connected with a second input end of the main controller; the environmental temperature collecting module is connected with a third input end of the main controller; the environmental pressure collecting module is connected with a fourth input end of the main controller. Meanwhile, the invention also discloses a method for measuring relative humidity at high temperature and high pressure. The method and the system provided by the invention fully consider influences of environmental pressure and environmental temperature when solving environmental relative humidity, so as to measure the obtained relative humidity more accurately. Meanwhile, since measurement for a pressure value and a temperature value is easily drifted in high temperature and high pressure environment, measured values of the environmental pressure and the environmental temperature are further corrected in the invention to improve the solving accuracy of the relative humidity.

Description

technical field [0001] The invention relates to the field of humidity measurement, in particular to a method and system for measuring high temperature and high pressure relative humidity. Background technique [0002] The traditional low temperature and atmospheric pressure relative humidity measurement technology on the market is quite mature, but the traditional low temperature and normal pressure relative humidity measurement technology is not competent for the sample gas in the high temperature and high pressure environment. Some high temperature relative humidity measuring instruments on the market are generally working At constant temperature and under normal pressure, but in a harsh environment, especially when the temperature of the measurement environment is not constant temperature and the pressure is not normal temperature, this high-temperature relative measuring instrument is not competent. [0003] Therefore, the technical research results of the high-temperatu...

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Problems solved by technology

[0002] The traditional low temperature and atmospheric pressure relative humidity measurement technology on the market is quite mature, but the traditional low temperature and normal pressure relative humidity measurement technology is not competent for the sample gas in the high temperature and high pressure environment. Some high temperature relative humidity measuring instruments on the market are generally working At constant temperature and normal pressure, but in harsh environments, especially when the temperature of the measurement environment is not constant temperature and the pressure is not normal temperature, this kind of high temperature relative measuring instrument is not competent

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