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Circuitry, systems and methods for detecting magnetic fields

United States Patent

September 14, 2010
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
Circuitry for detecting magnetic fields includes a first magnetoresistive sensor and a second magnetoresistive sensor configured to form a gradiometer. The circuitry includes a digital signal processor and a first feedback loop coupled between the first magnetoresistive sensor and the digital signal processor. A second feedback loop which is discrete from the first feedback loop is coupled between the second magnetoresistive sensor and the digital signal processor.
Kotter; Dale K. (Shelley, ID), Spencer; David F. (Idaho Falls, ID), Roybal; Lyle G. (Idaho Falls, ID), Rohrbaugh; David T. (Idaho Falls, ID)
Battelle Energy Alliance, LLC (Idaho Falls, ID)
11/ 461,515
August 1, 2006
GOVERNMENT RIGHTS This invention was made under a Cooperative Research and Development Agreement between The Walt Disney Company and Battelle Energy Alliance, LLC, under Contract DE-AC07-05-ID14517 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.