Distributor voltage sensor

Details Distributor voltage sensor Distributor voltage sensor

1974-04-29

1976-05-25

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 1342

Patent

active

039597253

ABSTRACT:
The disclosure describes an ignition system for an internal combustion engine fitted with a plurality of spark plugs. The engine rotates a distributor that includes a primary coil which induces voltages in a secondary coil. The secondary coil voltages are sequentially distributed to the spark plugs in order to operate the engine. The engine is provided with a source of common potential, generally referred to as chassis ground.
Improved apparatus for displaying the waveform of the voltage produced by the secondary coil includes an oscilloscope having a first input and a second input. A conductive probe is positioned close to the secondary coil, and a single conductor operatively connects the probe to the first input of the oscilloscope. A second conductor operatively connects the second input of the oscilloscope to chassis ground so that the waveform of the voltage produced by the secondary coil is displayed on the oscilloscope.

REFERENCES:
patent: 3793583 (1974-02-01), Glomski et al.

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