J042043 き裂識別性向上のための高周波積層探触子による大変位超音波送信技術

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タイトル別名
  • J042043 High amplitude ultrasonic measurement technique using high frequency laminated transducers for crack tip

抄録

We developed the large displacement ultrasonic measurement system for non-liner ultrasonic measurement using laminated transducer up to 700kHz in frequency to improve the SN ratio of ultrasonic inspection. In this study we developed the new laminated transducers of 2.9MHz in frequency for the inspection of steel structure improving the fabricate procedures due to the thinner thickness of high frequency piezoelectric element. Firstly, thickness of the bonding layers of the laminated transducers reduce to about 2|im which in one fifth of the conventional laminated transducers. And other improvements of fabricating procedures were applied to obtained stable laminated transducers. To investigate the availability of the new transducer comparing to the conventional transducer. As results, we obtained the high frequency laminated transducers.

収録刊行物

  • 年次大会

    年次大会 2012 (0), _J042043-1-_J042043-3, 2012

    一般社団法人 日本機械学会

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