Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1974-12-26
1976-01-27
Borchelt, Archie R.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250231SE, 250236, 350272, G01D 534
Patent
active
039354474
ABSTRACT:
An apparatus for automatically detecting angular motion of a test object, such as a clutch output, utilizing photoelectric devices in combination with helically apertured light shutters, the electric outputs of the photoelectric devices being interpreted by analog logic. Provision is made for a predetermined number of warm-up rotations of the test object to assure normal working conditions, for a predetermined reference threshold of detected motion, for controlled sequencing of the test object for testing for motion at various predetermined angular positions, and for determining malfunctioning of the test sequencing control.
REFERENCES:
patent: 2247805 (1941-07-01), Faus
patent: 3011020 (1961-11-01), Stamps
patent: 3553469 (1971-01-01), Stutz et al.
patent: 3757128 (1973-09-01), Vermeulen
Black Dewie E.
Dombrowski Thaddeus
Fabry Donald F.
Borchelt Archie R.
Burroughs Corporation
LaRoche E. R.
Redman Leon E.
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