A plate damage identification method and device, electronic equipment and storage medium

By using fiber optic sensing technology to generate carrier light signals in flammable and explosive environments, an initial background magnetic field and a detection surface magnetic field are constructed, and a differential acquisition magnetic signal is generated. This solves the risks of electric sparks and electrostatic discharge in high-risk scenarios of traditional electrical probes, and realizes passive board damage identification and safety detection.

CN122330256APending Publication Date: 2026-07-03CHINA THREE GORGES CORPORATION
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Patent Information

Application Number
CN202610719402.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-22
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In high-risk industrial settings where flammable and explosive materials are present, traditional electrical probes and cables pose a risk of electrical sparks or electrostatic discharge, which could lead to fires or explosions. Existing magnetic flux leakage detection technologies cannot achieve inherently safe online deployment.

Method used

A carrier optical signal is generated by using a sinusoidal voltage signal. An initial background magnetic field and a detection surface magnetic field are constructed through fiber optic sensing technology to generate a differential acquisition magnetic signal, thereby realizing passive board damage identification and eliminating the risks of electrical sparks and electrostatic discharge.

Benefits of technology

It enables passive identification of sheet metal damage in flammable and explosive environments, completely eliminating the risks of electric sparks and electrostatic discharge, and ensuring the safety and reliability of the detection.

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Abstract

This application discloses a method, device, electronic device, and storage medium for identifying plate damage. By introducing a sinusoidal voltage-modulated optical carrier signal as the transmission medium for magnetic field characteristics, the "electrical sensing" of traditional electrical probes is completely transformed into "optical sensing" of all optical fibers. This makes the front-end detection circuit in high-risk sites such as natural gas pipelines completely passive, eliminating the physical mechanisms of electric sparks, short circuits, or electrostatic discharge caused by current and voltage at the physical level, and achieving inherent safety at the physical level.
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