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Pressure transmitter batch automatic calibration system and calibration method thereof

An automatic calibration system and calibration system technology, applied in the pressure transmitter batch automatic calibration system and its calibration field, can solve the problems of low calibration accuracy, easy introduction of human factors, complicated calibration process, etc., to reduce costs and improve calibration efficiency , Improve the effect of calibration accuracy

Inactive Publication Date: 2020-12-08
XIAN TECHNOLOGICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The invention provides a batch automatic calibration system for pressure transmitters, which solves the problems in the existing manual manual calibration technology that the calibration process is relatively complicated, and human factors are easily introduced into the calibration process, resulting in low calibration accuracy.

Method used

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  • Pressure transmitter batch automatic calibration system and calibration method thereof
  • Pressure transmitter batch automatic calibration system and calibration method thereof
  • Pressure transmitter batch automatic calibration system and calibration method thereof

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] figure 1 A schematic diagram of the internal structure of the current output pressure transmitter used in the present invention is given.

[0035] see Figure 2-Figure 6 A pressure transmitter batch automatic calibration system shown:

[0036] The system includes the hardware circuit of the lower computer and the calibration system of the upper computer;

[0037] The hardware circuit of the lower computer includes a calibration board and a...

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Abstract

The invention relates to a pressure transmitter batch automatic calibration system and a calibration method thereof. The system is composed of a lower computer and an upper computer calibration system, and calibration work of at most 32 pressure transmitters is realized at the same time. 1, A lower computer hardware circuit uses MSP430 as a main control chip, communicates with an upper computer through a serial port, and can control the normal switching of 32 calibration channels; and 2, the upper computer calibration system is designed on a VB6.0 software development platform, and fitting isconducted an output curve of the pressure transmitter by adopting an average slope method to realize batch automatic calibration of the pressure transmitter. The system is applied to a current outputtype pressure transmitter with an embedded programmable gain amplifier PGA 308. The automatic calibration system solves the problems of low precision, low efficiency and the like of traditional manualcalibration.

Description

technical field [0001] The invention belongs to the technical field of tooling calibration for pressure transmitters, and provides a batch automatic calibration system and calibration method for pressure transmitters. Background technique [0002] At present, pressure transmitters have been widely used in national defense construction, petroleum exploration, machinery manufacturing, meteorological monitoring, aerospace, metallurgy, biomedicine, geological exploration and other fields. After the production of the pressure transmitter is completed, the default storage value of the memory used to store the adjustment information in the signal adjustment chip inside the pressure transmitter is unknown, and the adjustment function of the adjustment chip is unknown, so the input and output curve of the pressure transmitter is unknown. The transmitter is calibrated, and the input and output curve of the pressure transmitter is adjusted to the standard input and output curve before ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L27/00
CPCG01L27/002G01L27/005
Inventor 张海宁王娇艳张永正
Owner XIAN TECHNOLOGICAL UNIV
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