OFF-AXIS MAGNETIC ANGULAR SENSOR USING A MAGNETIC SENSING PROBE AND MULTI-POLE MAGNET ARRAY

Apparatus and associated methods relate to measuring position and displacement of a 2D surface magnet array of at least three adjacent magnetic north and south tracks with an acute angle versus its motion displacement relative to a magnetic field sensor (e.g., magnetic sensing probe). In an illustra...

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Bibliographic Details
Main Authors ANDREWS, Richard, KENNEY, Christopher, SCHWEIZER, Pascal
Format Patent
LanguageEnglish
Published 31.12.2020
Subjects
ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE
MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
PHYSICS
TARIFF METERING APPARATUS
TESTING
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Summary:Apparatus and associated methods relate to measuring position and displacement of a 2D surface magnet array of at least three adjacent magnetic north and south tracks with an acute angle versus its motion displacement relative to a magnetic field sensor (e.g., magnetic sensing probe). In an illustrative example, the geometry of the 2D surface magnet array may be planar with adjacent and alternating north and south pole regions. In some embodiments, the 2D surface magnet array geometry may take the form of (1) an axial cylindrical helical multipole magnet array having individually magnetized layers that are oriented in helical shape, or (2) a radial disk spiral multipole magnet array with at least three adjacent north and south tracks oriented as a spiral shape.
Bibliography:Application Number: US201816640885