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US 5,390,155 AGranted
Acoustic particle acceleration sensor and array of such sensors
AssigneeUnisys Corporation
InventorJohn D. Lea
Life of this patent
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Abstract
An element responsive to acoustic particle acceleration for sensing acoustic signals in a region of low acoustic pressure is disclosed. The element may be isolated from acoustic noise when positioned adjacent an acoustic noise generating high acoustic impedance structure by a baffle which provides isolation from radiated and evanescent acoustic signals and structure vibration.
Claims4
An acoustic particle acceleration sensor having a density that is equal to or less than a predetermined medium comprising:
- a housing, positionable in said predetermined medium, having outer surfaces and an inner chamber, said outer surfaces positionable to intercept acoustic particles of an incident acoustic wave propagating in said predetermined medium;
- a disk extending between opposite walls of said inner chamber and coupled to said housing in a manner to flex with acceleration of said acoustic particles;
- and
- distributed constant means coupled to said disk and responsive to flexures thereof for providing signals representative of said acceleration of said acoustic particles.
1 more element
Dependencies are inferred from the claim text.