CIRCUITRY, SYSTEMS AND METHODS FOR DETECTING MAGNETIC FIELDS

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...

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Bibliographic Details
Main Authors ROHRBAUGH, DAVID, T, SPENCER, DAVID, F, KOTTER, DALE, K, ROYBAL, LYLE, G
Format Patent
LanguageEnglish
French
Published 07.02.2008
Subjects
MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
NANOTECHNOLOGY
PERFORMING OPERATIONS
PHYSICS
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
TESTING
TRANSPORTING
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Summary: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. Selon l'invention, des circuits de détection de champs magnétiques comprennent un premier capteur magnétorésistif et un second capteur magnétorésistif configurés pour former un gradiomètre. Ces circuits comprennent un processeur de signal numérique et une première boucle de rétroaction couplée entre le premier capteur magnétorésistif et le processeur de signal numérique. Une seconde boucle de rétroaction discrète à partir de la première boucle de rétroaction est couplée entre le second capteur magnétorésistif et le processeur de signal numérique.
Bibliography:Application Number: WO2007US73253