Patent ID: 11889760
Assignee: PGS GEOPHYSICAL AS
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 8:
9. A seismic dual sensor, comprising:
an enclosure that includes a first wall, a second wall, and a substantially rigid support structure having first and second ends;
wherein each of the first wall and the second wall is flexible and substantially planar, and wherein the first end of the support structure couples to the first wall along a periphery of the first wall and the second end of the support structure couples to the second wall along a periphery of the second wall, such that the first wall and the second wall are disposed on opposite ends of the support structure, a plane of the first wall and a plane of the second wall are parallel with one another, and the first wall, the second wall, and the support structure together enclose an interior volume;
a flexible substrate coupled to an interior side of the support structure and extending away therefrom into the interior volume between the first wall and the second wall, such that a plane of the substrate is parallel with the plane of the first wall and parallel with the plane of the second wall;
a first piezoelectric structure disposed on an interior side of the first wall;
a second piezoelectric structure disposed on an interior side of the second wall;
at least a first electrical connection accessible on an exterior of the enclosure and configured to carry a hydrophone signal derived from at least one of the first piezoelectric structure and the second piezoelectric structure;
a motion sensor disposed on the substrate; and
at least a second electrical connection accessible on the exterior of the enclosure and configured to carry a motion sensor signal derived from the motion sensor.