Fiber optic interferometric ellipsoidal shell hydrophone

David A. Brown; Steven L. Garrett; D. V. Conte; R. C. Smith; E. Rothenberg; M. Young; Ed J. Rissberger

doi:10.1117/12.24806

1 February 1991 Fiber optic interferometric ellipsoidal shell hydrophone

David A. Brown, Steven L. Garrett, D. V. Conte, R. C. Smith, E. Rothenberg, M. Young, Ed J. Rissberger

Proceedings Volume 1369, Fiber Optic Systems for Mobile Platforms IV; (1991) https://doi.org/10.1117/12.24806
Event: SPIE Microelectronic Interconnect and Integrated Processing Symposium, 1990, San Jose, United States

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.

Citation Download Citation

David A. Brown, Steven L. Garrett, D. V. Conte, R. C. Smith, E. Rothenberg, M. Young, and Ed J. Rissberger "Fiber optic interferometric ellipsoidal shell hydrophone", Proc. SPIE 1369, Fiber Optic Systems for Mobile Platforms IV, (1 February 1991); https://doi.org/10.1117/12.24806

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