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Proceedings Paper

Remote sensing to ocean by using Brillouin scattering: test of sound speed and submerged object
Author(s): Dahe Liu; Jianfeng Xu; Huaying Wang; Jing Zhou
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Paper Abstract

The laboratory experimental test of sound speed for fresh water and typical salt water (salinity Sequals35%) are reported for different water temperatures. Considering that the returned signal contains both Rayleigh and Brillouin peak (which have Gaussian and Lorentzian line shapes respectively), the measured data are fitted by mixed function of Gaussian and Lorentzian. Then, the sound speed is obtained by Brillouin shift that is determined with FSR of the Fabry-Perot. For the testing of submerged object, it has fewer requirements on the accuracy. The experimental results without and with submerged object are given. All results show that Brillouin scattering is a good method for measuring sound speed in water and for testing of submerged object.

Paper Details

Date Published: 10 October 2000
PDF: 4 pages
Proc. SPIE 4222, Process Control and Inspection for Industry, (10 October 2000); doi: 10.1117/12.403839
Show Author Affiliations
Dahe Liu, Beijing Normal Univ. (China)
Jianfeng Xu, Beijing Normal Univ. (China)
Huaying Wang, Beijing Normal Univ. (China)
Jing Zhou, Beijing Normal Univ. (China)

Published in SPIE Proceedings Vol. 4222:
Process Control and Inspection for Industry
Shulian Zhang; Wei Gao, Editor(s)

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