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Absolute position detection system with mu m resolution using an integrated array of Hall sensors

: Gottfried-Gottfried, R.; Hauptmann, D.; Krause, M.; Kreißig, B.; Ulbricht, S.

	AMA Service GmbH, Wunstorf: Sensor '99. Proceedings. Vol.1 Wunstorf, 1999 pp.261-262
	Sensor <9, 1999, Nürnberg>

	English
	Conference Paper
	Fraunhofer IMS, Außenstelle Dresden ( IPMS) ()
	CMOS; Hall-Sensor; Integriertes Mikrosystem; Wegmessung; Wegmeßsystem

Abstract
We report on a innovative absolute position detection system with µm resolution based on magnetic pattern recognition. Main parts of the system are a single permanent magnet with diameter/length in the mm range, a fully integrated CMOS linear Hall sensor array and a muC. The system exhibits advantages like digital output and the of low resolution A/D-converter (12 bit) for building high resolution (> 13 bit) position detection systems.

: http://publica.fraunhofer.de/documents/PX-3052.html