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Optical seismic sensor systems and methods

United States Patent

9,207,339
December 8, 2015
View the Complete Patent at the US Patent & Trademark Office
Disclosed is an optical seismic sensor system for measuring seismic events in a geological formation, including a surface unit for generating and processing an optical signal, and a sensor device optically connected to the surface unit for receiving the optical signal over an optical conduit. The sensor device includes at least one sensor head for sensing a seismic disturbance from at least one direction during a deployment of the sensor device within a borehole of the geological formation. The sensor head includes a frame and a reference mass attached to the frame via at least one flexure, such that movement of the reference mass relative to the frame is constrained to a single predetermined path.
Beal; A Craig (Stoneham, MA), Cummings; Malcolm E (Somerville, MA), Zavriyev; Anton (Swampscott, MA), Christensen; Caleb A (Somerville, MA), Lee; Keun (Newburyport, MA)
Magi-Q Technologies, Inc. (Somerville, MA)
13/ 748,289
20140202786
January 23, 2013
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under SBIR Grant No. DE-SC0002490 awarded by the Department of Energy. The government therefore has certain rights in the invention.