DocumentCode
439677
Title
A monolithic positioning system
Author
Wunderlich, R. ; Thomas, C. ; Schumacher, K.
Author_Institution
University of Dortmund, Dortmund, Germany
fYear
2001
fDate
18-20 Sept. 2001
Firstpage
456
Lastpage
459
Abstract
A monolithic positioning system operating with absolutely coded magnetic scales is presented. The system is intended for precise absolute positioning in industrial applications. Mounted to a tool the sensor-system moves along a stationary scale. 13 out of 52 sensors read out the magnetic coding allowing to calculate the absolute position. The main task has been cancelling the immense sensor offsets. Numerous structures have been measured in order to get statistically firmed data of sensitivity and offset variation. A sensor readout technique without large offset cancellation circuitry is discussed. Furthermore a novel linear operational transconductance amplifier (OTA) is shown. First measurements are presented.
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 2001. ESSCIRC 2001. Proceedings of the 27th European
Conference_Location
Villach, Austria
Type
conf
Filename
1471431
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