Solid marine seismic cable
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United States of America Patent
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-
Feb 8, 2005
Grant Date -
Oct 23, 2003
app pub date -
Apr 23, 2002
filing date -
Apr 23, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A support structure for piezoelectric elements in a marine seismic cable is provided. The support structure comprises upper and lower cylindrical halves, each with channels formed therein. Two axial channels are adapted to retain three piezoelectric elements each. A third axial channel, positioned between the sensor element channels, is adapted to retain a flexible circuit. Transverse channels between the sensor element channels and the circuit channels accommodate extension from the flexible circuit. The piezoelectric elements are mounted within their respective channels with a resilient pad with adhesive on both sides. The piezoelectric elements are graded so that any group of three piezoelectric elements exhibits approximately the same sensitivity as any of the other three groups of piezoelectric elements on the support structure.
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