Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1976-05-03
1978-05-30
Krawczewicz, Stanley T.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
F02P 1700
Patent
active
040925854
ABSTRACT:
The disclosure describes improved apparatus for creating a delay for stroboscopes which corresponds to a fixed rotational angle of an engine and is independent of the rotational speed of the engine. The delay is created by charging a capacitor by means of a first current source and discharging the capacitor by means of a second current source.
REFERENCES:
patent: 2785215 (1957-03-01), Yetter
patent: 3314407 (1967-04-01), Schneider
patent: 3368143 (1968-02-01), Roberts et al.
patent: 3597677 (1971-08-01), MacCrea et al.
patent: 3813931 (1974-06-01), Rennick et al.
Krawczewicz Stanley T.
Sun Electric Corporation
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