JP7138832B2 - 衝撃付加装置及び検査方法 - Google Patents
衝撃付加装置及び検査方法 Download PDFInfo
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- JP7138832B2 JP7138832B2 JP2020140405A JP2020140405A JP7138832B2 JP 7138832 B2 JP7138832 B2 JP 7138832B2 JP 2020140405 A JP2020140405 A JP 2020140405A JP 2020140405 A JP2020140405 A JP 2020140405A JP 7138832 B2 JP7138832 B2 JP 7138832B2
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Description
2 重り
3 衝撃盤
6 粘性物質
7 衝撃付加装置
8 接触媒質
11 電力増幅器
12 信号処理装置(コンピューター)
21 センサ
22 電圧増幅器
Claims (6)
- 検査対象物に衝撃を付加する衝撃付加装置であって、
重りと、圧電素子と、衝撃盤を備え、
前記衝撃盤は、前記検査対象物に面接触し、
前記圧電素子は、伸縮可能であって、
前記圧電素子は、前記重りと前記衝撃盤との間で伸縮して、前記衝撃盤を介して前記検査対象物に衝撃弾性波を付加し、
前記衝撃弾性波の応答弾性波は、センサによって検出され、
前記重りと前記衝撃盤の間に粘性物質を介在させて、前記重りの振動の減衰を促進し、検査対象物に入力する弾性波の入力時間を短くす る、衝撃付加装置。 - 前記圧電素子は、信号処理装置により電圧変化が入力されて伸縮して前記重りを加速運動させ、その反力を衝撃力として前記検査対象物に入力することにより、物理的衝突を利用せずに再現性の高い衝撃力を入力する、請求項1記載の衝撃付加装置。
- 前記圧電素子に入力する電圧変化によって、前記検査対象物に付加する弾性波形を変更する、請求項1又は2に記載の衝撃付加装置。
- 前記衝撃盤と検査対象物の間に粘着性の接触媒質を塗布し、前記圧電素子を収縮させて、引張の弾性波を検査対象物に入力する、請求項1から3のいずれかに記載の衝撃付加装置。
- 前記検査対象物に同じ波形の弾性波を複数回入力し、電圧入力時刻から得た時刻に基づいて、計測された応答振動波形を、時間領域で統計処理することによってノイズを低減することを特徴とする、請求項1から4のいずれかに記載の衝撃付加装置。
- 検査対象物に衝撃を付加する検査方法であって、
圧電素子が、重りと、前記検査対象物に面接触する衝撃盤との間で伸縮して、前記衝撃盤を介して前記検査対象物に衝撃弾性波を付加するステップと、
センサが、前記衝撃弾性波の応答弾性波を検出するステップを含み、
前記重りと前記衝撃盤の間に粘性物質を介在させて、前記重りの振動の減衰を促進し、検査対象物に入力する弾性波の入力時間を短くする、 検査方法。
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2003004713A (ja) | 2001-06-20 | 2003-01-08 | Toshiba Corp | 高温用センサ |
JP2004037436A (ja) | 2002-07-02 | 2004-02-05 | Sakai Iron Works Co Ltd | 表面sh波による音弾性応力測定方法及び測定用センサ |
US20110198148A1 (en) | 2010-02-18 | 2011-08-18 | Conocophillips Company | Seismic transducers and baseplates having external dampeners and methods of use |
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US6488117B1 (en) * | 2001-08-24 | 2002-12-03 | Thomas E. Owen | Vertical-force vibrator seismic wave source |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2003004713A (ja) | 2001-06-20 | 2003-01-08 | Toshiba Corp | 高温用センサ |
JP2004037436A (ja) | 2002-07-02 | 2004-02-05 | Sakai Iron Works Co Ltd | 表面sh波による音弾性応力測定方法及び測定用センサ |
US20110198148A1 (en) | 2010-02-18 | 2011-08-18 | Conocophillips Company | Seismic transducers and baseplates having external dampeners and methods of use |
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JP7138832B6 (ja) | 2022-10-07 |
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