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Piezoelectric apparatus for generating electrically distinguishable bipolar signals
Piezoelectric apparatus for generating electrically distinguishable bipolar signals
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机译：压电装置，用于产生可电区别的双极信号
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摘要
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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