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Proceedings Paper

Development of a magnetic tensor gradiometer: integration with an autonomous underwater vehicle
Author(s): Daniel K. Lathrop; Robert Matthews; Alexander R. Perry; Peter V. Czipott; George I. Allen
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Paper Abstract

In Phase II of a Small Business Innovation Research contract funded through the Office of Secretary of Defense, Quantum Magnetics has developed a fieldable room-temperature gradiometer (RTG). The RTG affords unprecedented dynamic range that enables detection of signals near fluxgate sensor noise (approximately 5 pT/Hz1/2 at 1 Hz while the system is in motion in the earth's field (approximately 5 X 107 pT). To achieve this sensitivity when the RTG is integrated with an autonomous underwater vehicle (AUV), the magnetic interference generated by magnetic sources onboard the AUV must be removed. Direct magnetic feedback or signal processing using both ancillary sensors and a priori information about the interfering sources can be used to recover the baseline sensitivity of the RTG.

Paper Details

Date Published: 12 July 2000
PDF: 8 pages
Proc. SPIE 4039, Information Systems for Divers and Autonomous Underwater Vehicles Operating in Very Shallow Water and Surf Zone Regions II, (12 July 2000); doi: 10.1117/12.391880
Show Author Affiliations
Daniel K. Lathrop, Quantum Magnetics, Inc. (United States)
Robert Matthews, Quantum Magnetics, Inc. (United States)
Alexander R. Perry, Quantum Magnetics, Inc. (United States)
Peter V. Czipott, Quantum Magnetics, Inc. (United States)
George I. Allen, Naval Surface Warfare Ctr. (United States)


Published in SPIE Proceedings Vol. 4039:
Information Systems for Divers and Autonomous Underwater Vehicles Operating in Very Shallow Water and Surf Zone Regions II
Jody L. Wood-Putnam, Editor(s)

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