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2 April 1997 Laser opto-acoustic profilometry of solid surfaces
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Proceedings Volume 3091, Laser Applications Engineering (LAE-96); (1997) https://doi.org/10.1117/12.271782
Event: International Symposium on Intensive Laser Actions and Their Applications and Laser Applications Engineering, 1996, St. Petersburg-Pushkin, Russian Federation
Abstract
A laser opto-acoustic system for measuring 3-D objects surface topology has been described. The main principle of operation consists in excitation of a short acoustic pulse by irradiation of surface under test by short laser pulse and in measuring the time of acoustic pulse traveling to the detector. A laser pulse with nanosecond scale duration and liquid immersion medium with high enough sound speed was used to increase the measurement precision. The examples of system applications including aircraft turbine blade measuring have been presented.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexander A. Karabutov, Alexander P. Kubyshkin, Vladislav Ya. Panchenko, and Natalia B. Podymova "Laser opto-acoustic profilometry of solid surfaces", Proc. SPIE 3091, Laser Applications Engineering (LAE-96), (2 April 1997); https://doi.org/10.1117/12.271782
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