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 CHEN Sheng and LIN Guan-cheng.Testing an improved cymbal hydrophone[J].Journal of Marine Science and Application,2009,(4):328-332.
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Testing an improved cymbal hydrophone


Testing an improved cymbal hydrophone
CHEN Sheng and LIN Guan-cheng
CHEN Sheng and LIN Guan-cheng
College of Navigation, Northwestern Polytechnical University, Xi’an 710072, China
cymbal hydrophone sensitivity resonance frequency parallel connection frequency band
Cymbal hydrophones have small volume and high sensitivity, but their reception is not stable enough, and their reception is in too narrow a frequency band. In order to overcome these inadequacies, the structure of the cymbal hydrophone was improved. The single ceramic piezoelectric element was replaced with a double one, the radius of the ceramic piezoelectric element was reduced, and a parallel circuit was added. A static analysis of this new structure was developed, and then simulations were made of both the traditional and new hydrophone structure using finite element software. Tests were then conducted in a tank. The results showed that the improved hydrophone has reception in a wider frequency band, reception performance is stable within this frequency band, and sensitivity is still high.


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Last Update: 2010-05-03