Passive optical detection of underwater sound

Details Passive optical detection of underwater sound Passive optical detection of underwater sound

2007-07-31

2007-07-31

Pihulic, Daniel T (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

Reexamination Certificate

active

11151191

ABSTRACT:
A passive acoustic sensor that may be employed to detect sounds emanating from under the surface of a body of water. The sensor uses optics to determine vibration on the surface of a water body to detect sound pressure waves from underwater sound sources. The sensor is deployed above the surface and has no direct interaction with anything under the surface that may be emanating sounds. This allows the invention to operate without interfering with potential sound sources as well as allows for numerous deployment methods.

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