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Ground angle estimator from an ankle foot orthosis based on strain sensing and Fourier series
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Intelligent systems (IS-lab).
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Intelligent systems (IS-lab).
2008 (English)In: IEEE International Conference on Mechatronics and Automation, 2008. ICMA 2008, Piscataway, N.J.: IEEE Press, 2008, p. 203-206Conference paper, Published paper (Refereed)
Abstract [en]

A ground angle estimation technique for use on ankle-foot-orthosis AFO, during gait is proposed. Strain gauge sensors were mounted on a foot orthosis in order to give information about strain in the sagittal plane. The ankle angle of the orthosis was fixed. Strain characteristics were therefore changed when walking on slopes. It was investigated if strain information could be used for detection of inclination and estimation of inclination angle. With a Fourier series representation of the strain during a gait cycle, ground angle at different walking speeds and inclinations could be estimated with similar accuracy as previous studies using kinematically based estimators. This indicates that embedded strain sensors can be used for online control of future orthoses with inclination adaptation.

Place, publisher, year, edition, pages
Piscataway, N.J.: IEEE Press, 2008. p. 203-206
Keywords [en]
Fourier series, ankle foot orthosis, gait cycle, ground angle estimation, strain gauge sensors
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:hh:diva-1789DOI: 10.1109/ICMA.2008.4798752ISI: 000267671500037Scopus ID: 2-s2.0-65349119316Local ID: 2082/2184ISBN: 978-1-4244-2632-4 OAI: oai:DiVA.org:hh-1789DiVA, id: diva2:239007
Conference
IEEE International Conference on Mechatronics and Automation Location, Takamatsu, JAPAN, 5-8 August, 2008
Note

©2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Available from: 2008-08-21 Created: 2008-08-21 Last updated: 2018-03-23Bibliographically approved

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Svensson, WolfgangHolmberg, Ulf

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CiteExportLink to record
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Citation style
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