Pressure sensor calibration method and pressure sensor calibration device

Abstract

The invention provides a pressure sensor calibration method. The method comprises the following steps: S1, setting the temperature of a to-be-calibrated pressure sensor; S2, inputting different pressures into the pressure sensor at the temperature set in the S1; S3, acquiring response values of the pressure sensor under different pressures input in the S2; S4, acquiring a linear relation between the pressures input in the S2 and the corresponding response values in the S3; S5, determining the accuracy of the pressure sensor according to the linear relation acquired in the S4. With adoption of the pressure sensor calibration method and a pressure sensor calibration device, the pressure sensor working under different temperature conditions can be calibrated, additional measurement error is not introduced, meanwhile, the system complexity is not increased, and the whole device is safe, reliable and higher in universality.

Description

technical field [0001] The invention relates to the technical field of instrument calibration, in particular to a pressure sensor calibration method and a pressure sensor calibration device. Background technique [0002] The development of sensor technology is an important factor to promote the development of automatic measurement and automatic control technology. With the development of electronic technology, integrated circuit and computer technology, many new types of sensors have emerged. As one of many sensors, the pressure sensor has a wider range of applications with the advancement and development of its own technology, especially the improvement of stability, reliability, accuracy level and adaptability to the working environment. The regular measurement and calibration of the sensor has become increasingly prominent as a necessary means to ensure the accuracy and reliability of the test equipment. [0003] At present, the calibration of the pressure sensor is com...

AI Technical Summary

Problems solved by technology

With the development of industrial production conditions, the use of pressure sensors is not limited to the laboratory environment. There are more and more pressure measurements in some special conditions and environments, and the temperature gap of pressure sensors used in different experimental sites and environmental tests Therefore, the working linear equation of the pressure sensor obtained in the laboratory environment is gradually losing its guiding significance, and it is difficult to ensure the accuracy and reliability of the value

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