Noncontact Monitoring of Surface Temperature Distribution by Laser Ultrasound Scanning

• Hiroyuki Yamada

• Akira Kosugi

• Ikuo Ihara

抄録

A laser ultrasound scanning method for measuring a surface temperature distribution of a heated material is presented. An experiment using an aluminum plate heated up to 120 °C is carried out to verify the feasibility of the proposed method. A series of one-dimensional surface acoustic wave (SAW) measurements within an area of a square on the aluminum surface are performed by scanning a pulsed laser for generating SAW using a galvanometer system, where the SAWs are detected at a fixed location on the surface. An inverse analysis is then applied to SAW data to determine the surface temperature distribution in a certain direction. The two-dimensional distribution of the surface temperature in the square is constructed by combining the one-dimensional surface temperature distributions obtained within the square. The surface temperature distributions obtained by the proposed method almost agrees with those obtained using an infrared radiation camera.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 50 (7S), 07HC06-, 2011-07-01

  IOP Publishing

キーワード

• General Physics and Astronomy
• General Engineering

詳細情報

• CRID: 1360566396809789312
• NII論文ID: 210000070889
• DOI: 10.1143/jjap.50.07hc06
• ISSN: 13474065
• ISSN: 00214922
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.50.07HC06
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.50.07HC06/pdf
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