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- MATSUMOTO Kenshi
- Fukuoka institute of technology
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- KITA Kazutaka
- Fukuoka institute of technology
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- MURAYAMA Richi
- Fukuoka institute of technology
Bibliographic Information
- Other Title
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- J041012 長距離超音波伝送体を用いたガイド波送受信機構の検討([J041-01]超音波計測・解析法の新展開(1))
Abstract
Nondestructive inspection of a high temperature structure is required to guarantee the safety of it. However, there are not any useful sensors for high-temperature structure. Some of them can't work at high temperature over 50℃. Another one is too expensive to use it. Therefore, the sensing system which can transmit and receives an ultrasonic wave which travel long distance by using a long waveguide has been studied. It means that an ultrasonic sensor could be drive at atmospheric temperature. We could confirm that a guided ultrasonic wave generated by a trial electromagnetic acoustic transducer (EMATs) can travel more than 10m for using a thin bar with a 2mm - diameter as a wave guide. However, we had a difficulty to receive a reflected ultrasonic wave from the bottom surface of a test specimen. We tried to improve the trial inspection system by using an ultrasonic horn. Finally an experiment that the temperature of a test block was heated up to about 300℃ has been done and reflected ultrasonic wave from the bottom surface of it has been detected successfully by using the long waveguide and the wave horn.
Journal
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- The Proceedings of Mechanical Engineering Congress, Japan
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The Proceedings of Mechanical Engineering Congress, Japan 2013 (0), _J041012-1-_J041012-4, 2013
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390001205840616192
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- NII Article ID
- 110009934660
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- ISSN
- 24242667
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed