電気学会論文誌A(基礎・材料・共通部門誌)
Online ISSN : 1347-5533
Print ISSN : 0385-4205
ISSN-L : 0385-4205
論文
渦電流試験を用いためっき厚さ評価におけるセンサ構造と評価法の比較
小坂 大吾守安 奎裕柿下 和彦奈良 高明
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ジャーナル 認証あり

2019 年 139 巻 12 号 p. 701-707

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This paper discusses about plating thickness sensors with the eddy current for the continuous galvanizing line. We propose that separation index which shows distance between detection signals on the complex plan in order to compare between sensors, and a thickness evaluation method in order to evaluate plating thickness from detection signals. In simulations and experiments, a measurement condition and a best sensor of three sensors was quantitatively selected by using the index. Plating thickness of a test sample was evaluated with the method which use the radial basis function interpolation. These results demonstrate the possibility of making thickness measurements using an eddy current with high and variable liftoff.

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