Presentation	2002/11/22 Non-destructive Estimation for Coating Materials by Wavelet Analysis Yasuhisa HAYASHI, Kazuhisa KISHIMOTO,
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Abstract(in English)	The possibility of non-destructive estimation for coating materials by wavelet analysis was investigated. Surface acoustic waves on a aluminum block with brass surface layer was generated by a pulse generator, and it was observed by PZT sensors. The group velocity dispersion was estimated from detected waves by time-frequency analysis applied wavelet transform, and it was good agreement with theoretical group velocity. Furthermore, the inverse problem for estimation of material properties from the group velocity dispersion was carried out. Although it was limited in few parameters in the actual state, the possibility of this method for non-destructive estimation was confirmed.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	Wavelet Transform / SAW / Inverse Problem / Phase Velocity / Dispersion
Paper #	SAW2002-75
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Conference Information
Committee	US
Conference Date	2002/11/22(1days)
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Paper Information
Registration To	Ultrasonics (US)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Non-destructive Estimation for Coating Materials by Wavelet Analysis
Sub Title (in English)
Keyword(1)	Wavelet Transform
Keyword(2)	SAW
Keyword(3)	Inverse Problem
Keyword(4)	Phase Velocity
Keyword(5)	Dispersion
1st Author's Name	Yasuhisa HAYASHI
1st Author's Affiliation	()
2nd Author's Name	Kazuhisa KISHIMOTO
2nd Author's Affiliation
Date	2002/11/22
Paper #	SAW2002-75
Volume (vol)	vol.102
Number (no)	486
Page	pp.pp.-
#Pages	6
Date of Issue