CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 1997, Vol. 14 ›› Issue (S1): 963-695.

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DISTURBANCE MODEL FOR EDDY CURRENT TESTING

Duan Yaoyong, Chen Ronghua, Sheng Jianni, Chen Yusheng   

  1. Xi'an Jiaotong University, 710049
  • Received:1997-03-10 Revised:1997-05-04 Online:1997-12-25 Published:1997-12-25

Abstract: According to the conductor's skin effect in low frequency electromagnetic field and the characteristic of comparatively small excitement coil in the benchmark model for eddy current testing, a perturbation model is proposed by combining the axisymmetric field and the 3-dimensional field, in which the disturbed field due to crack in the conductor allows being solved.

Key words: eddy current, crack, disturbance

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