Position sensing device

Details Position sensing device Position sensing device

G - Physics

01

D

73/69, 340/135.6

G01D 5/14 (2006.01) G01D 5/16 (2006.01)

Patent

CA 1322281

ABSTRACT OF THE DISCLOSURE A position sensor including a guide bar carrying a magnetic tape generating a magnetic field whose intensity varies sinusoidally along a longitudinal axis of the guide bar. A pick-up head is mounted adjacent the guide bar for translational movement therealong to detect the magnetic field. More particularly, the pick-up head comprises two magnetic field detectors spaced apart by a predetermined distance in the direction of translational motion of the pick-up head, each magnetic field detector generating an output signal representative of the magnetic field intensity at the position of detection thereof. By processing the output signals of the magnetic field detectors, it is possible to accurately determine the position of the pick-up head with respect to the guide bar. Advantageously, the position sensor may be used for the construction of a torque meter.

611297

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