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Journal of Lightwave Technology

Journal of Lightwave Technology


  • 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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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.


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)

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  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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