Heterogeneous magnetic and inductive sensors

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United States of America Patent

PATENT NO 12203822
APP PUB NO 20230332965A1
SERIAL NO

17659224

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Abstract

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A heterogeneous sensor system includes a magnetic field sensor and an inductive sensor. A checker is configured to receive the magnetic field sensor output signal and the inductive sensor output signal and determine whether an error has occurred based on a comparison of the magnetic field sensor output signal and the inductive sensor output signal. Targets include at least a portion that is conductive and may include a ferromagnetic portion for back biased magnetic sensing. Additional features include on axis and off axis positioning of the sensors with respect to the target, multi-track targets for absolute position sensing, angle sensing and torque sensing configurations.

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Patent Owner(s)

Patent OwnerAddress
ALLEGRO MICROSYSTEMS LLC115 NORTHEAST CUTOFF WORCESTER MA 01606

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Casu, Emanuele Andrea Annecy, FR 11 18
Friedrich, Andreas P Metz-Tessy, FR 76 1649
Vuillermet, Yannick La Motte Servolex, FR 38 141

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