Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1976-01-20
1977-08-09
Krawczewicz, Stanley T.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 725, 324126, 324133, G01R 1342
Patent
active
040413730
ABSTRACT:
A capacitive pulse pickup is disclosed. The pickup comprises a capacitor electrode which is adapted to be placed against an ignition cable or the like and is directly connected with one end of the primary winding of a pulse transformer, the other end of the primary winding being grounded. The secondary winding of the transformer is, in turn, connected, via a two-conductor cable, to a pulse processing circuit.
REFERENCES:
patent: 1724195 (1929-08-01), Hantzsch
patent: 2323931 (1943-07-01), Peters
patent: 3513394 (1970-05-01), Tachick
patent: 3524133 (1970-08-01), Arndt
patent: 3524178 (1970-08-01), Stratton
patent: 3743922 (1973-07-01), Festos
patent: 3970932 (1976-07-01), Harvey
Krawczewicz Stanley T.
Siemens Aktiengesellschaft
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