Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2005-08-02
2005-08-02
Patidar, Jay (Department: 2862)
Electricity: measuring and testing
Magnetic
Displacement
C324S207250
Reexamination Certificate
active
06924639
ABSTRACT:
In a position detecting device for a rotor, such as a camshaft gear, a magnet sensor is constructed of first, second, third, and fourth MRE bridges. The bridges are positioned symmetric to a magnetic axis of a bias magnet. The third bridge is arranged at a midpoint between the first bridge and the magnetic axis. The fourth bridge is arranged at a midpoint between the second bridge and the magnetic axis. Outputs of the bridges are inputted to a differential amplifier circuit to obtain a single differential output. A position of the rotor is determined based on the differential output, regardless of gear-teeth shapes of the rotor.
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Denso Corporation
Patidar Jay
Posz Law Group , PLC
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