Motor rotation detector apparatus

Details Motor rotation detector apparatus Motor rotation detector apparatus

G - Physics

01

P

G01P 13/04 (2006.01) G01P 3/487 (2006.01)

Patent

CA 2301934

A leadless motor rotation detector apparatus for determining the direction of shaft rotation of a motor, the motor of the type providing a fluctuating magnetic field when rotating, the apparatus having at least two sensors separated a predetermined distance D1 from one another, each sensor operable for sensing the magnetic field and generating a corresponding signal having an amplitude and phase associated with the sensed magnetic field; and a processor responsive to the signals for comparing temporal aspects associated with the relative phase of each of the signals to determine a leading signal, the leading signal associated with a corresponding one of the at least two sensors and is indicative of the direction of motor rotation.

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