Auto Camshaft position sensor for BMW, 12141739891 12141734813

BMW Z3 (1995/10 - 2003/01)

WHAT ARE THE DIFFERENT TYPES OF CAMSHAFT AND CRANKSHAFT SENSORS?
Hall effect sensors are most commonly used in automotive applications for measuring the speed of a rotating object, such as a wheel, crankshaft, or camshaft. Hall effect sensors are chosen for their accuracy across the entire speed range, along with their resistance to dirt, mud, water, and rust. These are constructed of a stationary permanent magnet and semiconductor which contains an analog to digital (A/D) signal inverter. The A/D inverter produces the square wave electrical signal which is interpreted by the vehicle’s electronic controls to determine the position of the engine’s camshaft or crankshaft.camshaft sensor
A variable reluctance sensor is an analog signal generating sensor that is comprised of a permanent magnet and a pole piece. As the metal cog of the tone ring or reluctor wheel passes the tip of the sensor, a signal is generated and it drops as the cog moves away. The signal strength increases with the speed and proximity of the sensor to the tone ring.
A magnetoresistive sensor is a device that uses a magnetic field to transform mechanical motion into an electrical signal. It requires a power source to operate. This type of sensor is found in CMP, CKP, ABS,and steering wheel speed sensors due to its increased accuracy and resistance to electromagnetic interference (EMI).