Experimental determination of the surface displacement of a small flexural disk sonar transducer from surface strain measurements

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Authors
Cuthbert, Douglas Lee.
Subjects
Flexural disk transducers
Advisors
Baker, Steven R.
Date of Issue
1993-06
Date
June 1993
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The normal displacement of a flexural disk sonar transducer's radiating face was measured using both a laser doppler vibrometer and surface mounted strain gages. The laser doppler vibrometer measurements were used to calibrate the strain gages, allowing a single measurement of strain to be used to define the displacement over the transducer's entire face. The feasibility of investigating the interaction of closely spaced array elements through the use of surface strain measurements was established by experiments with a submerged two element array. The surface strain, measured as a function of the transducer separation, increases the understanding of sonar transducer element interaction in a densely packed array.
Type
Thesis
Description
Series/Report No
Department
Engineering Acoustics Academic Committee
Antisubmarine Warfare Academic Group
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
75 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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