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Proceedings Paper

Continuous ultrasonic signal method of laser-ultrasonic technique for flow field measurements
Author(s): Binqian Zhang; Zhoumo Song; Jianying Li
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Paper Abstract

One new kind of the laser-ultrasonic technique in which a continuous ultrasonic signal is used to record flow-induced traveling time differences of ultrasonic wave, propagation along a measuring sound beam between two laser beams, so-called A Continuous Ultrasonic Signal Method of Laser-Ultrasonic Technique, is presented. This method allows a fast and non-disturbing exploration of the flow field around models in wind tunnels. By using the new method, even an ultrasonic transducer with lower performance could be employed, and there is no need a high-accuracy optical detector.

Paper Details

Date Published: 29 April 2003
PDF: 6 pages
Proc. SPIE 5058, Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002, (29 April 2003); doi: 10.1117/12.509870
Show Author Affiliations
Binqian Zhang, Northwestern Polytechnical Univ. (China)
Zhoumo Song, Northwestern Polytechnical Univ. (China)
Jianying Li, Northwestern Polytechnical Univ. (China)

Published in SPIE Proceedings Vol. 5058:
Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002
Gong Xin Shen; Soyoung S. Cha; Fu-Pen Chiang; Carolyn R. Mercer, Editor(s)

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