Positioning Sensor Technology
Fraunhofer Institute for Integrated Circuits
Positioning Sensor Technology
Linear Positioning with 3D Magnetic Field Sensors in Standard CMOS
HallinOne® provides sensors, which can measure all the three axes of a magnetic field punctiformly. Linear positioning uses two or three (depending on the evaluation method) of those so-called pixel cells to determine the position. Gradient based and angle based evaluation allow for robust positioning. Neither temperature changes nor homogenous disturbing fields can cause inaccurate measurement results. This approach is not more expensive than conventional ones since the sensors are integrated in the evaluation chip.
Position Sensors
There is a vast field of industrial applications for position sensors, especially in vehicles and automated manufacturing plants. The technological development of the magnetic position sensors are leading the way from simple angle and distance sensors to multidimensional, robust, intelligent sensor systems.
The complexity of the design task for magnetic positioning systems is closely correlated with the number of degrees of freedom and the sensor complexity. Hence, simulation support during system design is not only a sensible measure regarding costs, but indispensable at already two degrees of freedom.
Fraunhofer IIS developed the HallinOne® technology for multidimensional Hall sensors integrated in one CMOS IC. The Fraunhofer IIS division in Dresden created a design environment for HallinOne® sensors, which allows the simulation of components and also entire systems during the early design phase.
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