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Wall thickness measurement using resonant phenomena of circumferential Lamb waves generated by plural transducer elements located evenly on girth
https://tokushima-u.repo.nii.ac.jp/records/2004190
https://tokushima-u.repo.nii.ac.jp/records/2004190e4d30972-31f2-4535-b9b7-387344302437
| 名前 / ファイル | ライセンス | アクション |
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jjap_55_7S1_07KC07.pdf (2.83 MB)
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| Item type | 文献 / Documents(1) | |||||||||||||||||||||||
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| 公開日 | 2018-01-12 | |||||||||||||||||||||||
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| アクセス権 | open access | |||||||||||||||||||||||
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| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||||
| 資源タイプ | journal article | |||||||||||||||||||||||
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| 関連識別子 | https://doi.org/10.7567/JJAP.55.07KC07 | |||||||||||||||||||||||
| 関連名称 | 10.7567/JJAP.55.07KC07 | |||||||||||||||||||||||
| 出版タイプ | ||||||||||||||||||||||||
| 出版タイプ | AM | |||||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||
| タイトル | Wall thickness measurement using resonant phenomena of circumferential Lamb waves generated by plural transducer elements located evenly on girth | |||||||||||||||||||||||
| 著者 |
西野, 秀郎
× 西野, 秀郎
WEKO
1230
× イワタ, コウダイ
× 石川, 真志
WEKO
759
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| 内容記述 | We present a novel method of measuring the pipe wall thickness using the resonance of the circumferential (C-) Lamb wave generated by a piezoelectric ring-shaped sensor (PS). The PS is a special device for an axially propagating torsional wave; however, the C-Lamb waves are generated simultaneously as spurious signals owing to the structure of the PS. Particularly under resonant conditions, the C-Lamb waves are dominantly generated, distorting the axially propagating wave. In this method, these troublesome spurious signals are used effectively for the measurement of the wall thickness under the PS location that is a dead zone of the PS itself. The method can compensate for its drawback, namely, the dead zone problem, without using additional instruments. In this study, the mechanisms of the generation and resonance of the C-Lamb waves were first explained. Secondly, the principle of the wall thickness estimation utilizing the resonance of the C-Lamb waves was proposed. Finally, experimental verifications were carried out. The estimated wall thicknesses agreed very well (maximum 1.5% error) with those measured by a micrometer caliper under suitable resonant conditions. | |||||||||||||||||||||||
| 書誌情報 |
en : Japanese Journal of Applied Physics 巻 55, 号 7S1, p. 07KC07, 発行日 2016-06-15 |
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| 収録物識別子 | 13474065 | |||||||||||||||||||||||
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| 収録物識別子 | 00214922 | |||||||||||||||||||||||
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| 収録物識別子タイプ | NCID | |||||||||||||||||||||||
| 収録物識別子 | AA12295836 | |||||||||||||||||||||||
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| 収録物識別子タイプ | NCID | |||||||||||||||||||||||
| 収録物識別子 | AA11509854 | |||||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||||
| 出版者 | The Japan Society of Applied Physics | |||||||||||||||||||||||
| 権利情報 | ||||||||||||||||||||||||
| 権利情報 | © 2016 The Japan Society of Applied Physics | |||||||||||||||||||||||
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| 識別子 | 310527 | |||||||||||||||||||||||
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| 言語 | eng | |||||||||||||||||||||||
