Pressure sensor calibration method and pressure sensor calibration device

A technology of pressure sensor and calibration method, applied in the direction of measuring device, measuring fluid pressure, instrument, etc., can solve the problems of accurate and reliable value of difficult value, loss of guiding significance for use, etc., to achieve the effect of strong versatility and safe and reliable device

Inactive Publication Date: 2015-07-15
BEIJING ZHENXING METROLOGY & TEST INST
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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 i

Method used

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  • Pressure sensor calibration method and pressure sensor calibration device
  • Pressure sensor calibration method and pressure sensor calibration device

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[0031] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The elements and features described in one drawing or one embodiment of the present invention may be combined with the elements and features shown in one or more other drawings or embodiments. It should be noted that for the purpose of clarity, representation and description of components and processes that are not related to the present invention and known to those of ordinary skill in the art are omitted in the drawings and descriptions.

[0032] The present invention provides a pressure sensor calibration method, such as figure 1 Shown is the pressure sensor calibration method of the present invention, which includes the steps:

[0033] S1, set the temperature of the pressure sensor to be calibrated.

[0034] Due to the large temperature difference between the pressure sensors used in different experimental sites and environmental tests, the staff can set it in combination w...

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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...

Claims

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Application Information

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IPC IPC(8): G01L27/00
Inventor 张琦胡湘宁杨水旺黄莹
Owner BEIJING ZHENXING METROLOGY & TEST INST
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