Multi-layer acoustically transparent sonar array

Details Multi-layer acoustically transparent sonar array Multi-layer acoustically transparent sonar array

1997-06-05

1998-09-15

Eldred, J. Woodrow

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367155, 367158, 310337, H04R 1700

Patent

active

058089705

ABSTRACT:
A sonar array uses multiple acoustically transparent layers. One layer is a lanar array of acoustic sensors that is substantially acoustically transparent. Another layer is an acoustically transparent wiring assembly that provides electrical connection to each acoustic sensor. A third acoustically transparent layer is a planar array of signal processing circuits coupled to the wiring assembly for processing electrical signals generated by the acoustic sensors. Each signal processing circuit resides within an area that is in geometric correspondence with a respective one acoustic sensor. Each signal processing circuit can include a preamplifier, an analog-to-digital converter and a digital multiplexer.

REFERENCES:
patent: 4638468 (1987-01-01), Francis
patent: 4737939 (1988-04-01), Ricketts
patent: 5367501 (1994-11-01), Kelly et al.
patent: 5389848 (1995-02-01), Trzaskos
patent: 5530683 (1996-06-01), Lindberg

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