Disturbance estimation in novel non-intrusive magnetic position measurement system

Saber Taghvaeeyan, Rajesh Rajamani

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Magnetic sensors and nonlinear models of magnetic fields (as functions of distance) can be used for position estimation in a number of real-world applications. However, disturbances from foreign ferromagnetic objects and from other spurious magnetic fields can cause significant errors in position estimates. This paper develops a disturbance compensation system based on redundant magnetic sensors and use of adaptive disturbance estimation algorithms. The developed disturbance compensation system is used for position estimation in a pneumatic cylinder application. Experimental results demonstrate that sub-mm accuracies can be obtained in position estimates, even in the presence of foreign ferromagnetic objects. The developed position estimation system can be used in a large number of industrial and mobile applications for piston position estimation tasks.

Original languageEnglish (US)
Title of host publicationACC 2015 - 2015 American Control Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781479986842
StatePublished - Jul 28 2015
Event2015 American Control Conference, ACC 2015 - Chicago, United States
Duration: Jul 1 2015Jul 3 2015

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619


Conference2015 American Control Conference, ACC 2015
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© 2015 American Automatic Control Council.


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