Sonar apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4833659
SERIAL NO

06686804

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A hydrophone array wherein each individual hydrophone of the array is comprised of, e.g. polyvinylidine fluoride (PVF.sub.2), tiles bonded to a substrate member opposite one another on opposite surfaces of the substrate. The substrate is a relatively stiff, metallic member having a Young's modulus of at least an order of magnitude greater than the PVF.sub.2 tiles which are oriented such that their stretch directions on either side of the substrate are parallel to one another. The directions of polarization of the tiles are either the same or opposite and electrical connections are made such that for a predetermined relative orientation of the directions of polarization, any output signal which may be caused by flexing or acceleration of the substrate is substantially reduced or eliminated.

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Patent Owner(s)

  • NORTHROP GRUMMAN CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Geil, Frederick G Annapolis, MD 6 272
Gruen, Henry M Arnold, MD 3 89
Newman, Howard S Annapolis, MD 7 54
Ratz, Thomas J Annapolis, MD 1 38
Rowe, Jr Linwood M Severna Park, MD 4 120
Thompson, John H Severna Park, MD 17 309

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