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Citation:
　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

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Title:
Testing an improved cymbal hydrophone
Author(s):
CHEN Sheng and LIN Guan-cheng
Affilations:
Author(s):
CHEN Sheng and LIN Guan-cheng
College of Navigation, Northwestern Polytechnical University, Xi’an 710072, China
Keywords:
cymbal hydrophone;  sensitivity;  resonance frequency;  parallel connection;  frequency band
分类号:
-
DOI:
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Abstract:
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.

References:

[1] DOGAN A, NEWNHAM R E. Metal-electroactive ceramic composite transducer. U.S.Patent 5,729,077[P]. 1998-3-17.
[2] NEWNHAM R E, XU Q C, YOSHIKAWA S. Transformed stress direction acoustic transducer. U.S. Patent 4,999,819[P].1991-3-12.
[3] FERNANDEZ J F, DOGAN A, TRESSLER J F, et al. Hollow piezoelectric composites[J]. Sens Actuators A Phys, 1996(51): 183-196.
[4] PONS J L. A comparative analysis of piezoelectric and magnetostrictive actuators in smart structures[J]. Bol.Soc.Esp. Ceram.V.2005(44): 146-154.
[5] TRESSLER J F, CAO Wenwu, NEWNHAM R E. Finite element analysis of the cymbal-type flextensional transducer[J]. Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1998, 45(5): 1363-1369.
[6] XU Q C, YOSHIKAWA S, BELSICK J R. Piezoelectric composites with high sensitivity and high capacitance for use at high pressures[J]. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1991(38): 634-639.
[7] Zhou Fuhong. Hydroacoustics transducer and array[M]. Beijing: National Defense Industry Press, 1984: 84-108
[8] DONG Luangui , ZHANG Jinze. Piezoelectric transducer and transducer array[M]. Beijing: Beijing University Press, 2005: 272-273

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Last Update: 2010-05-03