Multiple axis displacement system

Details Multiple axis displacement system Multiple axis displacement system

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08

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340/135.1

G08C 21/00 (2006.01) B23P 19/00 (2006.01) B25J 17/02 (2006.01) B25J 19/02 (2006.01) G01B 7/012 (2006.01) G01D 5/14 (2006.01) G01L 5/22 (2006.01)

Patent

CA 1301883

Applicant: Donald S. Seltzer For: Multiple Axis Displacement Sensor ABSTRACT OF THE DISCLOSURE A multiple axis displacement sensor is provided for sensing displacement of two relatively movable parts in a plurality of degrees of freedom. There are a plurality of displacement sensing units, each unit including at least two magnetic poles mounted on one of the parts, and at least two Hall Effect devices mounted on the other of the parts, and disposed relative to the poles so that relative displacement of parts in at least one degree of freedom causes at least one of the poles to move toward a respective said Hall Effect device and at least one other of the poles to move away from another respective Hall Effect device. The outputs of the Hall Effect devices are differentially combined to produce a signal linearly representative of displacement of the poles relative to the Hall Effect devices. DR-158C

553512

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