NDLI: Low Cost Position Sensor for Permanent Magnet Linear Drive

Content Provider	IEEE Xplore Digital Library
Author	Wegener, R. Senicar, F. Junge, C. Soter, S.
Copyright Year	2007
Description	Author affiliation: Univ. of Dortmund, Dortmund (Wegener, R.; Soter, S.)
Abstract	This paper deals with a custom made low cost sensor for measuring the position of a permanent magnet linear motor. The principle how to measure position and movement direction with two analog hall sensor elements is described. The following simulated and detailed error and failure treatment is very important to know exactly the performance and the possibilities of this low cost sensor element. Afterwards this position sensor is build and some measurements with a linear machine is done. After filtering, the accuracy of the two signals is high enough to be an input of a converter control to determine the correct current which has to be injected. If there is another higher ranking closed-loop control, e.g. pressure, flow or force, in the control system this low cost sensor is sufficient and works very well. It is possible to implement the very small sensor in the housing of the linear drive. This sensor costs less than 15 dollar and can not be compared to a very precise working linear senor for some hundred dollar in order to position the linear drive very exact but the accuracy is high enough to build a lower ranking closed-loop control and to stabilize a complex control system of converter, linear drive and load.
Starting Page	1367
Ending Page	1371
File Size	4269185
Page Count	5
File Format	PDF
ISBN	9781424406449
DOI	10.1109/PEDS.2007.4487882
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-27
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Costs Magnetic sensors Permanent magnets Control systems Position measurement Force control Pressure control Sensor systems Permanent magnet motors Motion measurement Linear Drive Position Sensor Permanent Magnet
Content Type	Text
Resource Type	Article

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