HallinMotion: Six-dimensional position measurement

With the algorithms we developed for multi-dimensional position measurement »HallinMotion®«, for the first time all six mechanical degrees of freedom can be determined with just one sensor chip. A measuring system consisting of permanent or electromagnet and sensor chip enables very high measuring rates with the highest accuracy. Temperature fluctuations and external fields can be compensated so that they have no influence on the calculated position values.

The new algorithm can also be used where, with previous 1D or 2D systems, disruptive transverse movements have prevented greater accuracy. Existing applications can thus be made simpler and more robust.

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© Fraunhofer IIS/Daniel Cichon

Keyfacts and Benefits

Keyfacts Benefits
  • Contactless, absolute position measurement
  • Inexpensive through integration of the sensor in CMOS technology
  • Acquisition of all six mechanical degrees of freedom
  • Accuracy down to the micrometer range
  • High positional accuracy through detection of rotary and transverse movements
  • Small assembly space
  • Real-time capability 
  • Foreign field and temperature dependency
  • Sensor fusion possible
  • Self-monitoring through integrated coils on the sensor chip

Control elements

Industrial automation

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