フラックスゲートセンサを用いた S450 円筒材の欠陥断面形状の評価


英字タイトル:
Evaluation of Cross-section Shape of Defect in Cylindrical Component byUsing Fluxgate Magnetic Sensor
著者:
鈴木 隆之 Takayuki SUZUKI 蓮見 清章 Kiyoaki HASUMI 中住 昭吾 Shogo NAKASUMI 寺本 徳郎 Tokuro TERAMOTO
発刊日:
公開日:
カテゴリ: 第8回
キーワードタグ:

概要

Defect in S45C cylindrical component was evaluated by using fluxgate (FG) magnetic sensor, which could measur e the order of 10 T magnetic flux density. Changes in magnetic flux densities were measured around a defect i n a plain cylinder component. In order to analyze defect shape and size quantitatively, the relationship betwe en magnetic flux densities and magnetic dipole moment of the defect plane in cylindrical component was formul ated. And the inverse analysis of Tikhonov regularization technique was performed by using magnetic flux dens ities around the defect. The shape and size of reconstructed defect by the inverse analysis were almost consi stent with the original ones. Then it was found that the defect could be evaluated by measuring magnetic flux densities using FG magnetic sensor and by applying the inverse analysis of Tikhonov regularization technique.


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