A7.4 - A high sensitivity analog and digital position sensor for the detection of ferromagnetic target in automotive applications

D. Frachon, AMA Association For Sensor Technology E.V., Sophie-Charlotten-Str. 15, 14059 Berlin, Germany
This paper introduces a new sensor technology of analog or digital position sensor for the detection of a ferromagnetic target in rotary or linear motion. This sensor is based on the use of a permanent magnet exhibiting a specific shape; this magnet is associated to a conical ferromagnetic part. The presented sensor has an improved sensitivity due to the use of this conical ferromagnetic part (acting as a flux concentrator) associated to a permanent magnet.
doi:10.5162/sensor2013/a7.4 fatcat:6hrjseu7lrhnjj5hof4t7mqn6i