非破壊試験技術資料 - toandi.co.jp
tofd法は送信、受信の探触子を同一試験体表面に配置し、きずの上下端部で発生する回折波を 検出し、伝搬時間差からきずの高さや深さを求める手法です。装置は、スキャニング装置、探傷器、 データ処理器（パソコン）より構成されます。
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