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Proceedings Paper

Development of an underwater laser imaging system for micro-bubbles
Author(s): Yunying Wang; Shuai Lv; Hailu Wang; Guijuan Li; Yuanyuan Guo
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Paper Abstract

Bubbles in the sea are important to the research of geography, chemical engineering, biology etc. This paper presented an underwater laser imaging system for micro-bubbles, including the design, construction and performance. The system using a series 532-nm laser for lighting, and transform a piece-source. The piece-source illumination and image an area of bubbles by a high resolution CCD. It is impossible to achievement imaging the bubbles with diameters from 10µm to 500µm at the same time, we use three different focus apertures to adapt the requirements of resolution and receiver field of view. We can change the adaptive aperture for bubbles with different diameters. The imaging capability of the system is tested in the laboratory. The solid targets of specified size have been imaged in the sink, and obtained the clear images of the target with 500µm and 10µm for three magnifications. In order to verify the reliability of the system, experiments were carried out in the marine to obtain the bubble distribution in the offshore area. The results of bubbles distribution characteristics showed that the distribution is basically according with index law.

Paper Details

Date Published: 8 October 2015
PDF: 5 pages
Proc. SPIE 9677, AOPC 2015: Optical Test, Measurement, and Equipment, 96771N (8 October 2015); doi: 10.1117/12.2199722
Show Author Affiliations
Yunying Wang, Science and Technology on Underwater Test and Control Lab. (China)
Shuai Lv, Science and Technology on Underwater Test and Control Lab. (China)
Hailu Wang, China Shipbuilding Industry Corp. (China)
Guijuan Li, Science and Technology on Underwater Test and Control Lab. (China)
Yuanyuan Guo, Science and Technology on Underwater Test and Control Lab. (China)


Published in SPIE Proceedings Vol. 9677:
AOPC 2015: Optical Test, Measurement, and Equipment
Sen Han; Jonathan D. Ellis; Junpeng Guo; Yongcai Guo, Editor(s)

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