Field winding type magnetic flux sensor calibration method

A technology of magnetic flux sensor and calibration method, applied in instruments, measuring devices, measuring fluid pressure, etc., to achieve the effect of easy engineering application

Inactive Publication Date: 2017-06-09
JIANGXI FASHION TECH
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  • Field winding type magnetic flux sensor calibration method

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[0017] Attached below figure 1 The present invention is described in detail:

[0018] A field-wound magnetic flux sensor calibration method, the method is as follows: after the sensor is installed and self-tested through link 1, different numbers of load test vehicles are manually added on the bridge or a water load test method is adopted;

[0019] The load simulated by this method is divided into 5 stages to simulate the change of cable force. Among them, 25% load case 2, 50% load case 3, 75% load case 4, and 100% load case 5. After the load simulation of the stage, perform calibration and fitting to obtain the fitting coefficient K6 of the force value-measurement value;

[0020] After carrying out the load simulation at different stages, the data of the load value and the measured value are obtained, and the quadratic term fitting is carried out according to this, and the calibration coefficient is obtained. In the subsequent measurement, the fitting coefficient K6 can be u...

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Abstract

The invention relates to a field winding type magnetic flux sensor calibration method, and relates to the magnetic flux monitoring industry field; the method simulated load comprises 5 phases, and the method comprises the steps of simulating cable force changes at 25% load condition, 50% load condition, 75% load condition and 100% load condition, simulating loads of different phases, carrying out calibration fitting, and thus obtaining a force value-measuring value fitting coefficient K; carrying out load simulation of different phases so as to obtain load value and measuring value data, carrying out quadratic fitting according to the data so as to obtain a calibration coefficient, and using the fitting coefficient K for force value calculation in following measurement. The method uses different load changing modes to carry out field winding type magnetic flux sensor field calibration, and the load values and measuring values can be directly matched; the method is operational, and can be easily applied to the engineering application.

Description

technical field [0001] The invention relates to a method for calibrating a field wound magnetic flux sensor, and relates to the field of the magnetic flux monitoring industry. Background technique [0002] The magnetic flux sensor is made based on the principle of the magneto-elastic effect of ferromagnetic materials. That is, when the external mechanical load of the ferromagnetic material changes, its internal magnetic permeability changes, and the internal force of the component is determined by measuring the change of the magnetic permeability of the component made of the ferromagnetic material. [0003] In the field of magnetic flux sensor applications, there is a field-wound magnetic flux sensor. Its nylon firmware and stainless steel are designed to be semi-circular. At the bridge site, the nylon skeleton is first installed on the cable, and then the coil is wound on site. After the winding is completed, install the stainless steel outer protective tube. Because the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L25/00G01L27/00
CPCG01L25/00G01L27/002
Inventor 刘付鹏刘文峰王辅宋谢镇张志文
Owner JIANGXI FASHION TECH
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