Presentation 2019-09-25
Measurement method of water depth on steel plate using Lamb waves
Tomonori Kimura, Akihiro Sakamoto, Issei Suda,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A method to detect water as well as to measure water depth in a metal housing using Lamb waves is shown. Two angle beam probes are set to the steel plate which is the bottom of the metal housing, A0 mode is excited in the steel plate, and detection and measurement of water depth are carried out from characteristics of the receives signals. It is shown by simulation that the amplitude as well as the frequency spectrum of the signal are varied corresponding to the water depth when the depth is shallow compared with the wavelength. There is possibility to measure the water depth using the spectrum because the peak frequency is related to the water depth.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Lamb waves / Angle beam transducer / Water depth / Frequency spectrum
Paper # US2019-49
Date of Issue 2019-09-18 (US)

Conference Information
Committee US
Conference Date 2019/9/25(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Tohoku Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Jun Kondo(Shizuoka Univ.)
Vice Chair Shinichi Takeuchi(Toin Univ. of Yokohama) / Hikaru Miura(Nihon Univ.)
Secretary Shinichi Takeuchi(Kanagawa Univ.) / Hikaru Miura(Doshisha Univ.)
Assistant Mototaka Arakawa(Tohoku Univ.)

Paper Information
Registration To Technical Committee on Ultrasonics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Measurement method of water depth on steel plate using Lamb waves
Sub Title (in English)
Keyword(1) Lamb waves
Keyword(2) Angle beam transducer
Keyword(3) Water depth
Keyword(4) Frequency spectrum
1st Author's Name Tomonori Kimura
1st Author's Affiliation Mitsubishi Electric Corporation(MELCO)
2nd Author's Name Akihiro Sakamoto
2nd Author's Affiliation Ryoden Shonan Electronics Corporation(RSEC)
3rd Author's Name Issei Suda
3rd Author's Affiliation TEPCO Power Grid, Incorporated(TEPCO Power Grid)
Date 2019-09-25
Paper # US2019-49
Volume (vol) vol.119
Number (no) US-211
Page pp.pp.15-18(US),
#Pages 4
Date of Issue 2019-09-18 (US)