Circuitry, systems and methods for detecting magnetic fields

Patent · 14 September 2010

OSTI ID:1014713

Kotter, Dale K ^[1]; Spencer, David F ^[2]; Roybal, Lyle G ^[2]; Rohrbaugh, David T ^[2]

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1. Shelley, ID
2. Idaho Falls, ID

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.

• Research Organization: Idaho National Laboratory (INL), Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-05ID14517
• Assignee: Battelle Energy Alliance, LLC (Idaho Falls, ID)
• Patent Number(s): 7,796,028
• Application Number: US Patent Application 11/461,515
• OSTI ID: 1014713
• Country of Publication: United States
• Language: English