远场涡流能量流的似波特性研究

Journal of Applied Sciences ›› 1997, Vol. 15 ›› Issue (3): 370-374.

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THE WAVE-LIKE PHENOMENA RESEARCH FOR ENERGY FLOW IN REMOTE FIELD EDDY CURRENTS

CHEN MEIJUAN, ZHAO YANG, SHI DANING, QU MINGXING

Nanjing University of Aeronautics & Astronautics, Nanjing 210096

Received:1995-10-28 Revised:1996-09-02 Online:1997-09-30 Published:1997-09-30

Abstract

Abstract: The remote field eddy current (RFEC) technique is a new powerful tool for pipe inspection. ln this paper the diffusive energy flow of RFEC has been systematically analyzed with finite element method upon electromagnetic theory. Results show that it has wave-like phenomena for diffusive energy flow of RFEC in both quasistatic and translent excltion.

Key words: finite element method, remote field eddy current, diffusive energy flow, wave-like phenomena

CHEN MEIJUAN, ZHAO YANG, SHI DANING, QU MINGXING. THE WAVE-LIKE PHENOMENA RESEARCH FOR ENERGY FLOW IN REMOTE FIELD EDDY CURRENTS[J]. Journal of Applied Sciences, 1997, 15(3): 370-374.

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THE WAVE-LIKE PHENOMENA RESEARCH FOR ENERGY FLOW IN REMOTE FIELD EDDY CURRENTS

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