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Proceedings Paper

Fiber optic interferometric ellipsoidal shell hydrophone
Author(s): David A. Brown; Steven L. Garrett; D. V. Conte; R. C. Smith; E. Rothenberg; M. Young; Ed J. Rissberger
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Paper Abstract

When an oblate spheroidal shell is subject to hydrostatic pressure the lengths of its equatorial and meridional circumferences experience changes of opposite sign. If optical fibers comprising the two legs of an interferometer are wound around these circumferences a push-pull hydrophone is created which requires no internal access. This paper will report the sensitivities of a proof of principle ellipsoidal shell hydrophone as determined by conventional bonded resistive strain gages and by optical-fiber interferometry. The shell fabricated at the Naval Postgraduate School was cast from Stycast 1266 epoxy.

Paper Details

Date Published: 1 February 1991
PDF: 7 pages
Proc. SPIE 1369, Fiber Optic Systems for Mobile Platforms IV, (1 February 1991); doi: 10.1117/12.24806
Show Author Affiliations
David A. Brown, Naval Postgraduate School (United States)
Steven L. Garrett, Naval Postgraduate School (United States)
D. V. Conte, Magnavox Government and Industrial Electronics Co. (United States)
R. C. Smith, Magnavox Government and Industrial Electronics Co. (United States)
E. Rothenberg, General Dynamics Corp. (United States)
M. Young, Honeywell, Inc. (United States)
Ed J. Rissberger, Honeywell, Inc. (United States)

Published in SPIE Proceedings Vol. 1369:
Fiber Optic Systems for Mobile Platforms IV
Norris E. Lewis; Emery L. Moore, Editor(s)

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