G - Physics – 08 – C
Patent
G - Physics
08
C
354/25, 340/135.
G08C 21/00 (2006.01) G01D 5/243 (2006.01) H03M 1/00 (2006.01)
Patent
CA 1169559
ROTARY POSITION INDICATING CIRCUIT Abstract of the Disclosure A circuit for indicating angular position of a rotary member comprising a resolver including an amplitude stabilized sine-cosine generator coupled to quadrature windings of the resolver for providing a d.c. signal which varies as a linear function of the position of a rotatable member coupled to the resolver. The d.c. signal is fed to a plurality of comparators for comparing such angular position to a plurality of predetermined angular set points. The comparators are coupled to a priority encoder for indicating angular position of the rotary member. The encoder includes a switch array and a plurality of exclusive-OR gates for programming the encoder to provide a zero output at an arbitrary position of the rotary member. A digital voltmeter calibrated in angles of member rotation is coupled through a plurality of momentary contact push-button switches for normally receiving the d.c. signal indicative of angular rotation, and for alternatively and selectively receiving a signal indicative of a selected one of the set points for facilitating set point adjustment.
379145
Lamb Technicon Corp
Marks & Clerk
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