Copyright © 1993 Published by Elsevier Science B.V. All rights reserved.
Transducer design for a correlation log
Received 31 March 1992;
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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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