what type of sensor is a wheel speed sensor

Thereare two different types of wheel speed sensors, active and passive. Before you can diagnose a suspected faulty wheel speed sensor, you need to have a good understanding of the type of sensor Thesensor is mounted at a specific gap from a toothed reluctor ring. As the teeth pass by the wheel speed sensor, it changes the magnetic field and produces alternating current or AC voltage. The AC voltage can be seen by a scope as a sine wave. The voltage signal will increase in amplitude with an increase in the speed of the reluctor ring. Thereare two types of wheel speed sensors: the active sensor and the passive sensor. Active Wheel Speed Sensors. The wheel speed sensors that are categorised as active sensors have a stark difference from the passive speed sensor. The active wheel speed sensor is said to be "activated" only when supplied with a voltage and generates an Thepassive speed sensor creates its own AC signal that changes frequency with wheel speed. This signal is only present while the wheel is turning at a rate fast enough to create the AC signal. Vehicles equipped with passive wheel speed sensors do not read at or below 2 mph coming from a dead stop. During a wheel-spin condition, or under a Apassive sensor creates an AC signal that changes frequency as the wheel changes speed. The ABS control module converts this AC signal to a digital signal for interpretation. It monitors all-wheel speed inputs. Vay Tiền Online Banktop.

what type of sensor is a wheel speed sensor