Title: Study on analysis methods of coil impedance of eddy current sensor
Abstract: To research the analysis methods about the coil impedance of eddy current sensor,two analysis methods,theoretic method and finite element method,are proposed.The series expression of the coil impedance is introduced.On the basis of analytical calculation,the computational model of the coil impedance is simplified as a cylindrical coil over a cylindrical measured target with the thickness S.The coil impedance value and the magnetic distribution figures are obtained by finite element analysis,respectively.Finally,the results from the derivation and finite element analysis are in agreement very well by comparison.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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