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A modified low-cost haptic interface as a tool for complex tactile stimulation
Scuola Superiore Sant’Anna, Pisa.
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Physiology.
2011 (English)In: Medical Engineering and Physics, ISSN 1350-4533, E-ISSN 1873-4030, Vol. 33, no 3, 386-390 p.Article in journal (Refereed) Published
Abstract [en]

This study describes the development and evaluation of a platform for the investigation of the human tactile ability. Specifically, it enables precise and reproducible application of time-varying 3D force stimuli to the skin of an immobilized human limb. We proceeded in the following steps: (1) programming a low-cost haptic interface to apply time-varying 3D force stimuli to a fixed rigid target, (2) implementing a combined feed-forward/feedback controller to improve the platform's precision and reliability in force stimulation, (3) determining the optimal tuning of the control loop parameters and (4) evaluating the system's performances when applying time-varying 3D force stimuli to an immobilized human finger pad. The system's performances were evaluated in terms of the accuracy and repeatability when delivering standard 3D force stimuli, i.e., stimuli with specified force components in the normal and skin tangential directions. Within the range of forces tested (5N in various directions), the maximum difference between the actual force and the desired value during static phases was <30mN (accuracy) and the root-mean-square of the standard deviation (repeatability) was 15mN during static phases and <75mN during dynamic phases.

Place, publisher, year, edition, pages
2011. Vol. 33, no 3, 386-390 p.
Keyword [en]
Haptic interface; Psychophysics; Tactile physiology; Tactile stimulator
National Category
Physiology
Identifiers
URN: urn:nbn:se:umu:diva-41337DOI: 10.1016/j.medengphy.2010.10.019PubMedID: 21093349OAI: oai:DiVA.org:umu-41337DiVA: diva2:405712
Available from: 2011-03-23 Created: 2011-03-23 Last updated: 2017-12-11Bibliographically approved

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Edin, Benoni B

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • vancouver
  • Other style
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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