A7.1 - Multiturn and high precision through-shaft magnetic sensors

Gerald Masson, Yannick Ronnat, Thierry Dorge & Stephan Biwersi
Magnetic sensors have several advantages which make them attractive for automotive applications: they are contactless (there is no mechanical wear-out), insensitive to dirt and are relatively simple. MMT formerly developed a 360° through shaft angular position sensor technology using a probe which measures the magnetic field angle variation generated by a rotary diametrically magnetized magnet. Now, MMT is focusing on derived designs providing additional features like a multi-turn output, an improved accuracy or a very...