Share Email Print

Proceedings Paper

Fiber-Optic Oblate Flextensional Hydrophone
Author(s): David A. Brown; Steven L. Garrett; Donald A. Danielson
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

When an oblate spheroidal shell having an aspect ratio aib > (2-v)112, where v Poisson's ratio, is subject to hydrostatic compression, the semi-major, a, and semi-minor, b, axes experience strain of opposite sign. If two optical fibers, which comprise the arms of an interferometer, are wound around the equatorial and meridional circumferences of the spheroid, pressure changes induce a differential optical phase shift in the interferometer. Calculations of circumferential strain, polar and equatorial displacement, lowest natural frequency, buckling pressure, and optical pressure sensitivity of such a sensor are presented for thin shells. Sample designs based on these calculations are compared to other fiber-optic hydrophones of similar dimensions and materials. Preliminary designs will be presented.

Paper Details

Date Published: 13 February 1990
PDF: 9 pages
Proc. SPIE 1169, Fiber Optic and Laser Sensors VII, (13 February 1990); doi: 10.1117/12.963038
Show Author Affiliations
David A. Brown, Naval Postgraduate School (United States)
Steven L. Garrett, Naval Postgraduate School (United States)
Donald A. Danielson, Naval Postgraduate School (United States)

Published in SPIE Proceedings Vol. 1169:
Fiber Optic and Laser Sensors VII
Ramon P. DePaula; Eric Udd, Editor(s)

© SPIE. Terms of Use
Back to Top