Pressure wave sensing device of the piezoelectric type with cont

Details Pressure wave sensing device of the piezoelectric type with cont Pressure wave sensing device of the piezoelectric type with cont

1987-07-02

1988-08-30

Jordan, Charles T.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

367159, 367169, 310337, 310800, G01V 138

Patent

active

047681730

ABSTRACT:
A pressure wave sensor device is provided including at least two sensitive flexible piezoelectric elements wound in two helices in opposite directions of a tubular support and a method for manufacturing same, said device including a copper conducting ribbon wound helically between the two windings of opposite direction and in the same direction as the underlying winding so as to avoid short circuits at the crossing points of the turns and to improve the electric and mechanical couplings between the two sensitive elements, said tubular support being provided with collector assemblies at regular intervals and wound over the whole of its length with the sensitive elements and the conducting ribbon, the different windings then being cut to the right length at the level of the collector assemblies and connected electrically thereto.

REFERENCES:
patent: 3798474 (1974-03-01), Cassand et al.
patent: 4568851 (1986-02-01), Soni et al.

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