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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 19, Iss. 7 — Jul. 1, 2001
  • pp: 994–

An Investigation of the Pressure-to-Acceleration Responsivity Ratio of Fiber-Optic Mandrel Hydrophones

Ole Henrik Waagaard, Geir Bjarte rd, and Gunnar Wang

Journal of Lightwave Technology, Vol. 19, Issue 7, pp. 994- (2001)


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Abstract

The acceleration responsivity of the fiber-optic air-backed mandrel hydrophone is studied. This responsivity may be a significant noise source in high vibration environments. The pressure-to-acceleration responsivity ratio is therefore a figure of merit for the hydrophone. It is shown that an ideal hydrophone with a sufficiently rigid support cylinder should not show any first-order acceleration responsivity. The dominant contribution to any first-order acceleration responsivity is the deformation of the support cylinder due to acceleration. The responses are evaluated both theoretically and experimentally. This treatment gives a set of guidelines which should be followed in order to maximize the pressure-to-acceleration responsivity ratio. It is also theoretically and experimentally demonstrated that the axial acceleration responsivity can be significantly reduced by symmetrical excitation of the hydrophone.

[IEEE ]

Citation
Ole Henrik Waagaard, Geir Bjarte rd, and Gunnar Wang, "An Investigation of the Pressure-to-Acceleration Responsivity Ratio of Fiber-Optic Mandrel Hydrophones," J. Lightwave Technol. 19, 994- (2001)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-19-7-994


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References

  1. B. H. Houston, J. A. Bucaro, N. Lagakos and A. Dandridge, "High frequency response of fiber-optic planar acoustic sensors", J. Lightwave Technol., vol. 9, pp. 1195-1199, Sept. 1991.
  2. D. A. Danielson and S. L. Garrett, "Fiber-optic oblate flextensional hydrophone", J. Lightwave Technol., vol. 7, pp. 1995-2002, 1989.
  3. G. F. McDearmon, "Theoretical analysis of a push-pull fiber-optic hydrophone", J. Lightwave Technol., vol. 5, pp. 647-652, 1987.

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