Hall effect sensor for vehicle fuel tank level gauge, measures field from moving magnet and is connected by lead to supply or evaluation instrument

摘要

The Hall effect sensor (46) measures the magnetic field from a permanent magnet (16) which moves. The sensor is connected to a base component (40) and has a metallic cover (42) associated with it, and spaced away from it. A lead (60) connects to the sensor and is passed through the cover and/or base component. At the other end, the lead is connected to a voltage source or an evaluation instrument.