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Ultrasonics
Volume 31, Issue 1, 1993, Pages 21-34
 
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doi:10.1016/0041-624X(93)90029-Y    How to Cite or Link Using DOI (Opens New Window)
Copyright © 1993 Published by Elsevier Science B.V. All rights reserved.

Transducer design for a correlation log

B. Woodward, S. K. Hole and W. Forsythe

Department of Electronic and Electrical Engineering, Loughborough University of Technology, Leicestershire LE11 3TU, UK

Received 31 March 1992; 
accepted 25 June 1992. 
Available online 19 September 2002.

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Abstract

A correlation log is a specialized sonar system for measuring the velocity of a vessel at sea. Here, the parameters for designing a transducer array comprising a projector and two or more hydrophones are discussed; these parameters include the choice of ceramic, frequency of operation, beam pattern directivity, projector power, projector matching circuit and housing construction. Also, the effect of differently-sized combinations of projector and hydrophones on their combined directional response and beamwidth is discussed. The research is primarily concerned with high-frequency piezoelectric transducers, with a low-impedance backing and a thin acoustic window.

Author Keywords: transducers; correlation; navigation

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Ultrasonics
Volume 31, Issue 1, 1993, Pages 21-34
 
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