JP5419977B2 - 磁歪材料を含む接着により結合された接合部における歪みの測定 - Google Patents
磁歪材料を含む接着により結合された接合部における歪みの測定 Download PDFInfo
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Description
Claims (18)
- 接着により結合された接合部における歪みを感知する方法であって、
接合部に歪み波を誘導すること、
歪み波の周波数を変化させることによりさまざまな深さにおいて構造を検査すること、及び
接合部の局所的磁気特性の変化を感知すること
を含む方法。 - 接合部が、接着剤と、接着剤に含まれる歪み感受性の磁歪材料とを含んでいる、請求項1に記載の方法。
- 歪み波を誘導しながら、結合された接合部に対して正弦波の外部磁界を印加することを更に含む、請求項1に記載の方法。
- 磁気誘導の変化率(dB/dt)を感知する、請求項1に記載の方法。
- 結合された接合部の局所的領域に歪み波を誘導し、これら局所的領域での磁気応答を測定する、請求項1に記載の方法。
- 局所的領域における機械的振動を測定して、同じ局所的領域における対応する磁気測定値と相関させる、請求項5に記載の方法。
- 局所的領域における磁気測定値をベースラインデータと比較する、請求項5に記載の方法。
- 各局所的領域に歪みを印加した後で取り除き、各領域における磁気応答の遅延率を測定する、請求項5に記載の方法。
- 単一アレイを使用して、選択された対象領域に歪み波を誘導し、この選択領域における局所的磁気特性の変化を感知する、請求項5に記載の方法。
- アレイが、一方向に延びる音響材料からなるストリップと、それに垂直な方向に延びるマイクロ磁気センシング材料からなるストリップとを含み、歪み波を誘導するために音響材料からなるストリップの一つを選択し、局所的磁気特性の変化を感知するためにマイクロ磁気センサ材料からなるストリップの一つを選択することにより、選択された二つのストリップの交差地点の選択領域を試験する、請求項9に記載の方法。
- アレイが、一方向に延びる音響材料からなるストリップ及びマイクロ磁気センサ材料からなるストリップと、それに垂直な方向に延びる音響材料からなるストリップ及びマイクロ磁気センシング材料からなるストリップとを含み、選択された領域に歪み波を誘導するために、一方向に延びる音響材料からなるストリップのうちの二つを選択し、選択された領域の局所的磁気特性の変化を感知するために、垂直な方向に延びるマイクロ磁気センサ材料からなるストリップの一つを選択する、請求項9に記載の方法。
- 選択された音響材料からなるストリップ間の距離を変更することにより、さまざまな深さにおいて選択された領域を検査する、請求項11に記載の方法。
- 接着により結合された接合部における歪みを感知するシステムであって、
磁歪材料からなる粒子を含む接着により結合された接合部を有する構造と、
接合部の選択された領域に歪み波を誘導する手段と、
選択された領域における局所的磁気特性の変化を感知する手段と
さまざまな深さにおいて構造を検査するために歪み波の周波数を変化させる手段と、
を備えるシステム。 - 接着により結合された接合部における歪みを感知する方法であって、
接合部に歪み波を誘導すること、
接合部の局所的磁気特性の変化を感知すること
結合された接合部の局所的領域に歪み波を誘導し、これら局所的領域での磁気応答を測定すること、及び
局所的領域における機械的振動を測定して、同じ局所的領域における対応する磁気測定値と相関させること、
を含む方法。 - 接着により結合された接合部における歪みを感知する方法であって、
接合部に歪み波を誘導すること、
接合部の局所的磁気特性の変化を感知すること
結合された接合部の局所的領域に歪み波を誘導し、これら局所的領域での磁気応答を測定すること、及び
各局所的領域に歪みを印加した後で取り除き、各領域における磁気応答の遅延率を測定すること、
を含む方法。 - 接着により結合された接合部における歪みを感知する方法であって、
接合部に歪み波を誘導すること、
接合部の局所的磁気特性の変化を感知すること、及び
結合された接合部の局所的領域に歪み波を誘導し、これら局所的領域での磁気応答を測定すること、
を含む方法であって、
単一アレイを使用して、選択された対象領域に歪み波を誘導し、この選択領域における局所的磁気特性の変化を感知し、
アレイが、一方向に延びる音響材料からなるストリップと、それに垂直な方向に延びるマイクロ磁気センシング材料からなるストリップとを含み、歪み波を誘導するために音響材料からなるストリップの一つを選択し、局所的磁気特性の変化を感知するためにマイクロ磁気センサ材料からなるストリップの一つを選択することにより、選択された二つのストリップの交差地点の選択領域を試験する、
方法。 - 接着により結合された接合部における歪みを感知する方法であって、
接合部に歪み波を誘導すること、
接合部の局所的磁気特性の変化を感知すること、及び
結合された接合部の局所的領域に歪み波を誘導し、これら局所的領域での磁気応答を測定すること、
を含む方法であって、
単一アレイを使用して、選択された対象領域に歪み波を誘導し、この選択領域における局所的磁気特性の変化を感知し、
アレイが、一方向に延びる音響材料からなるストリップ及びマイクロ磁気センサ材料からなるストリップと、それに垂直な方向に延びる音響材料からなるストリップ及びマイクロ磁気センシング材料からなるストリップとを含み、選択された領域に歪み波を誘導するために、一方向に延びる音響材料からなるストリップのうちの二つを選択し、選択された領域の局所的磁気特性の変化を感知するために、垂直な方向に延びるマイクロ磁気センサ材料からなるストリップの一つを選択する、
方法。 - 選択された音響材料からなるストリップ間の距離を変更することにより、さまざまな深さにおいて選択された領域を検査する、請求項17に記載の方法。
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