PHOTOELECTRIC CONVERTER FOR DETERMINING MARK ON DISK OF ELECTRIC COUNTER Russian patent published in 1994 - IPC

Abstract RU 2010161 C1

FIELD: test equipment. SUBSTANCE: converter has cylindric lens separated by non-transparent shutter, illuminator, photoreceiver, square pulse generator and signal processing unit which has ac amplifier connected in series with sync detector, d. c. amplifier and threshold unit. Noise immunity may be increased due to suppression of reflection from protective glass and board of electric counter as well as signals from external radiation sources. EFFECT: improved noise immunity; simplified optical circuit of the converter. 3 cl, 3 dwg

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RU 2 010 161 C1

Authors

Oranskij L.G.

Kokarev A.S.

Dates

1994-03-30—Published

1992-12-07—Filed