Research on Nondestructive Testing Signal Processing Method for Intermittent Fault of Circuit Structure

In the process of nondestructive testing of circuit structural units, considering that the eddy current intensity and distribution formed under the action of electromagnetic coupling will inevitably cause the change of voltage or impedance of electromagnetic induction testing coil, this kind of phen...

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Bibliographic Details
Published in:Journal of physics. Conference series 2022-06, Vol.2284 (1), p.12016
Main Authors: Huang, Zhangyu, Ling, Long, Xiao, Qixun
Format: Article
Language:English
Subjects:
Arc discharges
Cavitation
Circuit design
Circuits
Coils
Corrosive wear
Eddy current testing
Eddy currents
Electric arcs
Electromagnetic coupling
Electromagnetic induction
Electronic equipment
Fault detection
Nondestructive testing
Physics
Prediction models
Short circuits
Signal processing
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Summary:In the process of nondestructive testing of circuit structural units, considering that the eddy current intensity and distribution formed under the action of electromagnetic coupling will inevitably cause the change of voltage or impedance of electromagnetic induction testing coil, this kind of phenomenon reflects the signal change information caused by defects such as insulation wear, corrosion, cavitation and so on. In order to fully avoid the sudden faults such as short circuit, open circuit or arc discharge caused by hidden dangers, which force the equipment to stop for maintenance, this paper studies the principle of intermittent fault detection system of circuit structure, designs the circuit structure of typical modules, and establishes the defect prediction model based on Smoothing Technology. It provides a theoretical basis for effectively detecting intermittent fault signals, analyzing the propagation trend of intermittent faults and identifying defect modes, and can be extended to the acquisition and processing of intermittent fault signals of electronic equipment.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2284/1/012016