Robust position measurement systems based on integrated 3-D magnetic field sensors
Today s position measurement systems are restricted to systems based on lateral Hall-Sensors and, hence, suffer from low robustness concerning temper-ature dependency and disturbing external magnetic fields. With the application of 3D magnetic field sensors new principles in signal conditioning can be applied. Position values are then calculated from the complete flux vector and not only from a single component of the magnetic field. Thus it is possible either to perform multi axis position measurement or to use gradient approaches to come to more robust systems. The drawback of these approaches is that the complexity of system design increases. So it is necessary to set up new development methodolo-gies for such multidimensional systems. In this article an approach to design such robust multidimensional position sensors systems is proposed.