This invention relates to the field of
pressure measurement technology, specifically a method and
system for tracing isothermal pressure. The method includes acquiring the measured
wireless pressure recorder; heating a dry isothermal chamber using an air bath dry isothermal control method, causing the temperature of the dry isothermal chamber to sequentially reach and stabilize at a certain value. N A target temperature value is obtained. N A set temperature environment is established; under each set temperature environment, the actual pressure value inside the dry constant temperature chamber is gradually brought closer to the preset standard pressure value using a standard pressure source; during the process of the actual pressure value gradually approaching the preset standard pressure value, samples are obtained. N A set of temperature-pressure deviation data; for N A hierarchical fitting process is performed on a set of temperature-pressure deviation data to obtain the temperature-pressure compensation curve of the
wireless pressure recorder under test. This invention achieves calibration of the
wireless pressure recorder under test at different temperatures through fitting calculations.