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Calibration method of pressure sensor

A technology of pressure sensors, calibration methods, applied in the direction of force/torque/work measurement instrument calibration/testing, instruments, measuring devices, etc.

Pending Publication Date: 2021-05-07
SONG NUO MENG TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide a pressure sensor calibration method that can improve the processing efficiency of the pressure sensor for the problem that the manual calibration of the pressure sensor affects the processing efficiency of the pressure sensor

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  • Calibration method of pressure sensor
  • Calibration method of pressure sensor
  • Calibration method of pressure sensor

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Embodiment Construction

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of ...

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Abstract

The invention relates to a calibration method of a pressure sensor. The pressure sensor comprises a core body, an analog-to-digital conversion module, a processor and a test key. The calibration method of the pressure sensor comprises the following steps that: a group of standard pressures with different numerical values are sequentially applied to the core body; after each standard pressure is applied to the core body, the analog-to-digital conversion module converts an analog signal output by the core body into a digital signal; before each standard pressure is applied to the core body, a pressing operation is applied to the test key to generate a trigger signal; each time the test key generates a trigger signal, the processor outputs output data according to the digital signal; and the processor performs linear fitting on a group of input standard pressures and output data corresponding to each standard pressure so as to obtain a calibrated linear fitting equation. According to the calibration method of the pressure sensor, automatic calibration of the pressure sensor can be realized, the workload and the labor intensity of operators are reduced, and the processing efficiency of the pressure sensor is further improved.

Description

technical field [0001] The invention relates to the technical field of component calibration, in particular to a calibration method of a pressure sensor. Background technique [0002] Pressure is an important parameter in pneumatic, fluid or other measurements, so pressure sensors are widely used in various test measurements, product testing, and automatic control systems. Due to the inconsistency of the output signal of the sensor core, each sensor needs to be manually calibrated during the production process of the pressure sensor. This process not only has a large workload and high labor intensity, but also greatly affects the processing efficiency of the pressure sensor. Contents of the invention [0003] Based on this, it is necessary to provide a pressure sensor calibration method that can improve the processing efficiency of the pressure sensor for the problem that the manual calibration of the pressure sensor affects the processing efficiency of the pressure sensor...

Claims

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Application Information

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IPC IPC(8): G01L25/00
CPCG01L25/00
Inventor 陈兆仁广鹏
Owner SONG NUO MENG TECH CO LTD
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