Distributor ignition systems can be triggered by which of the following?

Distributor ignition systems utilize different types of sensors to trigger the ignition process, effectively controlling the timing of spark generation. Both Hall-effect sensors and magnetic pickups serve this purpose, making them viable options for triggering these systems.

Hall-effect sensors detect the presence of a magnetic field and produce a voltage signal when a magnetic material, such as a rotor or cam, passes nearby. This approach allows for precise control over ignition timing, as the sensor can signal the ignition module when to fire the spark plug based on rotational position.

On the other hand, magnetic pickups operate on the principle of electromagnetic induction. As the rotor moves past the coil of the magnetic pickup, it alters the magnetic field, generating a voltage signal that similarly indicates the necessary timing for ignition.

The choice of either a Hall-effect sensor or a magnetic pickup is thus accurate, as both technologies are commonly used in distributor ignition systems to achieve reliable and efficient spark generation. This adaptability in using either type of sensor underscores their importance in the design and function of ignition systems.