Multi-dimensional balanced magnetic field measurement system and method

CN112526417BActive Publication Date: 2026-07-07CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD
Filing Date
2020-11-23
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing technologies struggle to accurately measure multidimensional equilibrium magnetic fields, especially in lightning strike current tests, where magnetic field measurement is difficult and inaccurate.

Method used

The system employs a magnetic field sensor array, a parallel module, an active integrator module, a data acquisition unit, a photoelectric conversion module, and computational analysis software. The magnetic field sensor array generates a differential magnetic field signal, the parallel module processes the mean, the integrator module restores it to an analog signal, the data acquisition unit converts it to a digital signal, the photoelectric conversion module converts it to an optical signal, and the computational analysis software performs analysis and calculations to plot the magnetic field change curve and solve for the parameters.

Benefits of technology

It enables accurate measurement of multidimensional equilibrium magnetic fields, improves the precision and sensitivity of magnetic field measurement, and ensures the stability of the measurement proportionality coefficient.

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Abstract

The application provides a multi-dimensional balanced magnetic field measurement system and method, which comprises a magnetic field sensing array, a parallel module, an active integration module, a data acquisition unit, an optoelectronic conversion module and a calculation and analysis software which are electrically connected in sequence; the magnetic field sensing array is used for generating a plurality of magnetic field differential signals in a to-be-measured magnetic field; the parallel module is used for mean processing of the plurality of magnetic field differential signals generated in each magnetic field sensing array; the active integration module is used for integrating and operating the magnetic field differential signals and restoring them into analog signals; the data acquisition unit is used for collecting signals of the analog signals and converting them into digital signals; the optoelectronic conversion module is used for converting the digital signals into optical signals; and the calculation and analysis software is used for analyzing and calculating the optical signals by using preset parameters and algorithms, drawing a change curve of the to-be-measured magnetic field, solving a time parameter and an amplitude parameter of the to-be-measured magnetic field. The application can effectively detect a plurality of point magnetic fields and ensure the accuracy of magnetic field measurement.
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