Piezoelectric apparatus for generating electrically distinguisha

Details Piezoelectric apparatus for generating electrically distinguisha Piezoelectric apparatus for generating electrically distinguisha

1981-07-06

1983-10-11

Krawczewicz, Stanley T.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

324174, 324208, 324392, 73DIG4, 310339, G01P 348, G01P 354

Patent

active

044095481

ABSTRACT:
This specification discloses an apparatus and method for providing electrically distinguishable signals occurring as a function of the position of a moving element. The electrical signals are generated by a piezoelectric apparatus and can be used to determine a variable such as revolutions per minute of the movable element. Particular ones of the electrically distinguishable signals can be used for initiating a function such as the firing of the spark plugs.

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