| Project/Area Number |
03555090
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
計測・制御工学
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| Research Institution | KANAZAWA TECHNICAL COLLEGE |
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Principal Investigator |
TOKUNAGA Yoshiaki Kanazawa Technical College, Department of Electrical Engineering, Professor, 電気工学科, 教授 (00072174)
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| Co-Investigator(Kenkyū-buntansha) |
MINAMIKAWA Toshiharu Industrial research Institute of ISHIKAWA Researcher, 機械電子部, 研究員
SENTOKU Eiichi Kanazawa Technical College, Department of Mechanical Engineering, Professor, 機械工学科, 教授 (20154677)
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| Project Period (FY) |
1991 – 1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Budget Amount *help |
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1993: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1992: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1991: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | PHOTOACOUSTIC EFFECT / SCANNING PHOTOACOUSTIC MICROSCOPE / EPOXY RESIN / BACKING MATERIAL / THERMAL WAVE / He-Ne LASER / Ar ION LASER / 内部傷 / He-Neレ-ザ / マイクロホン / セラミックス / 非接触測定 |
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| Research Abstract |
We developed the hardware and software of scanning photoacoustic microscope(SPAM) composed of low price parts. We found that our SPAM could be used well to understand fundamental characteristics of a surface flaw on machinable ceramic, surface and subsurface flaws in epoxy and the distribution of carbon fiber in the CFRP as an equipment of nondestructive testing.
Amplitude and phase of a photoacoustic signal generated from an epoxy resin on various backings(aluminum, white acrylic resin and black-coated white acrylic resin) were measured by this SPAM.
The experimental results were as follows.
The photoacoustic signals for light-reflective backings were generated from the epoxy resin on the backing, while photoacoustic signals for light-absorptive backing were generated from the backing itself. We proposed a "model for PA imaging of" a drilled hole in the epoxy resin sample.
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