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US 4,163,206 AGranted
Apparatus and method for seismic wave detection
AssigneeWestern Geophysical Company of America
InventorErnest M. Hall, Jr.
Life of this patent
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Abstract
Seismic waves are detected for a given seismic prospect with an accelerometer and a hydrophone and the outputs of said accelerometer and hydrophone are combined directly to create a signal for seismic analysis. The accelerometer and hydrophone may be combined physically in a single composite unit for recording the seismic waves or an accelerometer and hydrophone may record the seismic survey independently for subsequent combining of the signals from the accelerometer and hydrophone.
Claims3
A seismic sensor comprising in combination:
- a rigid housing;
- a pressure sensor, encased in a module that is removably mounted in the housing, for generating a first signal proportional to pressure applied to the sensor;
- a separate acceleration sensor, encased in a module that is removably mounted beneath said pressure sensor module in the housing, for generating a second signal proportional to acceleration forces applied to the housing;
- and
- means for electrically connecting said pressure sensor in series directly with said accelerometer sensor to produce a third sum signal.
2 more elements
Dependencies are inferred from the claim text.