Means for maintaining a fixed relative orientation of two sensor

Details Means for maintaining a fixed relative orientation of two sensor Means for maintaining a fixed relative orientation of two sensor

1986-09-26

1987-09-08

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

267153, 267178, 181112, G01V 118, H01K 1700

Patent

active

046929070

ABSTRACT:
A gradiometer array of two or more sensors consists of a closed housing filled with a volume of fluid having a desired specific gravity. The sensors are freely suspended in the housing by flexible tethers. The sensors have different specific gravities such that one always sinks and the other floats. By that means, the sensors are self-aligning along an axis parallel to the gravitational vertical.

REFERENCES:
patent: 3749948 (1973-07-01), Morais
patent: 4334296 (1982-06-01), Hall

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