Low frequency inertia balanced dipole hydrophone

Details Low frequency inertia balanced dipole hydrophone Low frequency inertia balanced dipole hydrophone

H - Electricity

04

R

349/57

H04R 1/42 (2006.01) B06B 1/06 (2006.01) G01V 1/38 (2006.01)

Patent

CA 1108744

46,983 LOW FREQUENCY INERTIA BALANCED DIPOLE HYDROPHONE ABSTRACT OF THE DISCLOSURE A dipole hydrophone having a differential pressure sensing unit, for example, a multi-laminar bender disc, within a liquid filled housing. Two liquid filled acoustic waveguides form extensions of the housing and include pres- sure sensing ports. A mass of predetermined value is con- nected to the sensing unit and with a predetermined separa- tion between sensing ports, the mass value is chosen so that the sensing unit response to acceleration is very nearly equal and opposite to its response due to the inertial mass of the liquid.

305833

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