2024-03-29T01:45:24Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00012333
2022-12-14T04:05:59Z
1221:1222
渦電流による影響を考慮した平面コイルのインピーダンス簡易計算手法
Simplified Calculation Method of Impedance of a Planar Coil in Consideration of the Influence Depending on Eddy Current
伊東, 大輔
藤岡, 俊充
脇若, 弘之
田代, 晋久
矢島, 久志
萬田, 雄司
金澤, 猛彦
藤原, 伸広
Copyright© 2013 the Japan Society of Applied Electromagnetics and Mechanics
eddy current
planar coil
equivalent circuit
calculation method
impedance
finite element method
An eddy current sensors have various uses, for example metal detection and determination, nondestructive inspection, and position detection. However, there are few studies which show the influence of a conductor on the impedance of a detector coil using a theoretical formula. This paper shows the simplified calculation method on impedance of a planar coil that can be found from an equivalent circuit by considering that a conductor plate is one turn of coil which form changes according to displacement. The impedance corresponding to the overlap length of a conductor plate was calculated about the planar rectangular coil and the planar triangular coil. The calculated value was compared with the measured value and the calculated value of finite element method. The calculated value of impedance of rectangular coil and triangular coil agreed with the measured value within an error of ± 5.98%. Mutual inductance between the planar coil and conductor plate was calculated from the area ratio of planar coil and overlap.
Article
日本AEM学会誌. 21(2):234-239 (2013)
日本AEM学会
2013-06
jpn
journal article
VoR
http://hdl.handle.net/10091/17386
https://soar-ir.repo.nii.ac.jp/records/12333
https://doi.org/10.14243/jsaem.21.234
10.14243/jsaem.21.234
0919-4452
AN10457520
日本AEM学会誌
21
2
234
239
https://soar-ir.repo.nii.ac.jp/record/12333/files/Simplified_Calculation_Method_Impedance_Planar_Coil.pdf
application/pdf
1.4 MB
2015-09-28