High-inductive-reactance flexible magnetic paste type eddy current array sensor device and monitoring method thereof

High-inductive-reactance flexible magnetic paste type eddy current array sensor device and monitoring method thereof

The invention relates to a high-inductive-reactance flexible magnetic paste type eddy current array sensor device and a monitoring method thereof which are used for in-service long-term nondestructive monitoring and detection of in-service steel rails, especially turnout junctions (1). The sensor de...

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Hauptverfasser: MU GENSHENG, LU CONGYUN, LIN JUNMING
Format: Patent
Sprache:chi ; eng
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator MU GENSHENG
LU CONGYUN
LIN JUNMING
description The invention relates to a high-inductive-reactance flexible magnetic paste type eddy current array sensor device and a monitoring method thereof which are used for in-service long-term nondestructive monitoring and detection of in-service steel rails, especially turnout junctions (1). The sensor device is adhered to the surface of a detected object in a magnetic attraction manner by permanent magnets and connected to the center of a detection instrument (2) through wireless signal remote transmission. The eddy current sensor device is characterized in that the eddy current sensor device (3) comprises a lining body (31), eddy current detection coils (32) and permanent magnets (33); the lower surface of the lining body (31) is provided with a plurality of coil grooves (311) used for placing the eddy current detection coils (32); the upper surface of the back part (313) of the lining body (31) is also provided with a plurality of grooves (312) used for installing the permanent magnets (33); wherein the lining b
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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title High-inductive-reactance flexible magnetic paste type eddy current array sensor device and monitoring method thereof
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