Digital angle indicator

Details Digital angle indicator Digital angle indicator

1980-06-26

1981-03-03

Phillips, Charles E.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

G01C 906

Patent

active

042532426

ABSTRACT:
A digital angle indicator for the measurement of predetermined angles. The indicator comprises a rotatably mounted gravity responsive opaque rotor having transparent slots therein for selectively passing light from light sources to light detectors, said light detectors being connected to a plurality of visual indicators through a digital logic circuit for activating said visual indicators in response to said light detectors. The visual indicators provide an indication of the attainment of the angle being measure and values greater or lesser than the desired angle.

REFERENCES:
patent: 2777070 (1957-01-01), Stamper et al.
patent: 3657551 (1972-04-01), Lingert et al.
patent: 3776315 (1973-12-01), Gille et al.
patent: 4079521 (1978-03-01), Uhorczak
patent: 4159577 (1979-07-01), Bergkvist

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