MR sensor bridge developments integrating barber pole structures were started
by Philips in the eighties. In the beginning, measurement faults in the analogous
measurement of magnetic fields by AMR technology deemed the marketing progress
of MR technology.
At the beginning of the nineties, new concepts, especially provided by the IMO in Wetzlar, were found to realize and produce high precision magnetic field sensors. A serious of application based sensor designs were made, finding markets for example in medical instrumentations, the automotive sector,....
Influenced by the development of GMR based sensors, new designs are under progress.
Simple AMR Bridges
AMR-Bridges with integrated compensation
AMR-Bridges with compensation and flip wires
AMR-Gradient sensor with and without compensation
AMR- Angle sensors
AMR-Length sensors with linear characteristic
AMR-Length sensors in strong field mode