Visualization of Propagating Ultrasonic Waves Induced by a Single Laser Pulse

• TAKESHITA Teruo

  The Graduate School for Creation of New Photonics Industry Gl Lab. Co., Ltd.

• OKIHARA Shin-ichiro

  The Graduate School for Creation of New Photonics Industry

• TAKIGUCHI Yoshihiro

  The Graduate School for Creation of New Photonics Industry Hamamatsu Photonics K. K.

Bibliographic Information

Other Title

• 単発レーザー励起超音波の可視化
• Laser Original 単発レーザー励起超音波の可視化
• Laser Original タンパツ レーザー レイキ チョウオンパ ノ カシカ

Abstract

We have been studying non-invasive and non-destructive methods for inspecting internal structures that use laser-induced ultrasonic waves and an optical measurement technique. As one solution, we propose a new method for determining the internal structure from images of propagating ultrasonic waves induced by a single laser pulse, using a visualization technique that uses a laser beam for illumination and an image-converter tube. In this paper, the captured images of propagating ultrasonic waves in the space-time domain with nanosecond time resolution and two-dimensional dynamic images with fifty nanosecond exposure time are presented and analyzed. This investigation demonstrates the suitability of this proposed method for industrial applications.

Journal

• The Review of Laser Engineering

  The Review of Laser Engineering 36 (3), 139-143, 2008

  The Laser Society of Japan

Keywords

• Laser induced ultrasonic
• Non destructive inspection
• Single event measurement
• Visualization
• Framing streak camera

Details

• CRID: 1390282679624238080
• NII Article ID: 10021105502
• NII Book ID: AN00255326
• DOI: 10.2184/lsj.36.139
• COI: 1:CAS:528:DC%2BD1cXltFaisLk%3D
• ISSN: 13496603
• ISSN: 03870200
• NDL BIB ID: 9428983
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9428983
• Web Site: https://www.jstage.jst.go.jp/article/lsj/36/3/36_139/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed