ABSTRACT
Magnetic sensors are used in versatile automotive applications such as the position detection of throttle valves, cam-and crankshafts, pedals, wipers, and winders. The magnetic sensor with the highest sensitivity is the superconducting quantum interference device (SQUID). A drawback of a SQUID sensor is the low temperature for the superconductive material. This chapter focuses on magnetic fields in the range of 10 µT to 200 mT which are typically used for automotive applications, with this in mind, Hall sensors are the best choice for the measurement system. The manufacture of mechanical constructions with high precision requires quality checks of the dimensional accuracy. The geometrical probe is the connection between the surface of the device under test and the frame of reference of the moving axes. A common approach to measuring the spatial dependency of magnetic fields is the combination of moving axes and a magnetic sensor.
