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Automotive glossary: What is a Crank Shaft Sensor or Crankshaft Sensor?

Definition of Crank Shaft Sensor: In order to find out the engine speed, for example for a rev counter or the engine control, a crankshaft sensor can be installed. It may be realized as a hall effect pulse generator or a simple induction coil. At this, the flywheel that rotates on the crank shaft is being implemented like a cogwheel, the teeth then cause a little current impulse when passing by the sensor, which can be evaluated. With a gap left in the gear rim of the flywheel, the respective crankshaft angle can be detected too and evaluated by the electronic.

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