Electronic protractor

Electrical pulse counters – pulse dividers – or shift registers: c – Applications – Measuring or testing

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377 53, 340347P, G06M 314

Patent

active

044765673

ABSTRACT:
Angular deviations of a control surface cause phase quadrature output signals to be produced from an optical encoder mounted thereon. Successive values of the quadrature signals are latched to logic circuitry which determines the state and direction of rotation, causing a counter to up or down count, appropriately. A digital display, responding to the status of the counter, indicates the magnitude and direction of the angular deviation of the control surface.

REFERENCES:
patent: 2208147 (1940-07-01), Eisler
patent: 2772411 (1956-11-01), Cooper
patent: 2806402 (1957-09-01), Ferris
patent: 3030513 (1962-04-01), Bayliss et al.
patent: 3041599 (1962-06-01), Beaudette
patent: 3112478 (1963-11-01), Ostroff
patent: 3541572 (1970-11-01), Shults
patent: 3557458 (1971-01-01), Shults
patent: 3793731 (1974-02-01), Hyyppa et al.
patent: 3859651 (1975-01-01), Thomas, Jr.
patent: 3996670 (1976-12-01), Joyal et al.
patent: 4101882 (1978-07-01), Kramer
patent: 4168123 (1979-09-01), Price
patent: 4213035 (1980-07-01), Washizuka et al.

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