Pressure sensor calibration system

Abstract

The invention relates to a pressure sensor technology field and discloses a pressure sensor calibration system. The system comprises a pressure source, a data acquisition unit, a data processing unit and a standard pressure sensor. The standard pressure sensor and pressure test ends of one or more tested pressure sensors are communicated with the pressure source. The standard pressure sensor and pressure signal output ends of the tested pressure sensors are connected with a pressure signal input end of the data acquisition unit. The data processing unit compares a detected pressure value of the tested pressure sensors with the detected pressure value of the standard pressure sensor and outputs a difference value of the two detected pressure values. By using the pressure sensor calibration system, the pressure value of the tested pressure sensors and the pressure value of the standard pressure sensor can be automatically collected; and the collected pressure value of the tested pressure sensors and the pressure value of the standard pressure sensor can be automatically compared and the difference value of the two detected pressure values can be output. A measuring result is accurate. By using the pressure sensor calibration system, a plurality of pressure sensors can be checked simultaneously. Working efficiency is high.

Description

technical field [0001] The invention relates to the technical field of pressure sensors, in particular to a pressure sensor calibration system. Background technique [0002] In the engine test, multiple performance parameters need to be measured by pressure, and the pressure is usually measured by a pressure sensor. The sensitive element of the pressure sensor is generally a strain gauge type. During long-term use, the strain gauge of the pressure sensor will produce a corresponding changes, which eventually lead to inaccurate measurements. [0003] In order to prevent the inaccurate measurement of the pressure sensor due to the change of the strain gauge, after the pressure sensor has been used for a certain period of time, the pressure sensor is usually calibrated on the pressure sensor calibration system to determine the working status of the pressure sensor. [0004] In the prior art, the pressure sensor calibration system generally includes a manual pressure pump, a pr...

AI Technical Summary

Problems solved by technology

[0005] This pressure sensor calibration system uses a manual pressure pump to generate pressure. All data reading processes are manually read, and the results are calculated manually. The structure report cannot be automatically given, and there may be deviations in reading and calculation, resulting in inaccurate measurement results. ; and this pressure sensor calibration system can only check one pressure sensor at a time, and the work efficiency is low

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