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Multimodal input device with SEMG and contact force sensors

Abstract

In myoelectric prostheses, movement artifacts are
known to impair control performance. This study relates to a
novel sensor which measures surface electromyograms
(SEMG) as well as contact force at the electrode-skin
interface. Its purpose is to explore the in-socket mechanical
realities of movement artifacts in order to produce control
algorithms that are more robust to said artifacts.
The new sensor includes a commercial SEMG electrode
and four surface-mounted force sensors, stacked within a
plastic housing. Preliminary experiments in an experienced
transradial user showed that sudden lack of control was
often caused by electrode lift-off or re-connection. Future
work will include algorithms for alleviating these problems.

Category

Academic chapter

Language

English

Author(s)

Affiliation

  • SINTEF Digital / Mathematics and Cybernetics
  • Norwegian University of Science and Technology
  • University of New Brunswick

Year

2011

Publisher

University of New Brunswick

Book

Raising the Standard, Proceedings of the Myoelectric Controls Symposium (MEC) 2011

ISBN

9781551311609

View this publication at Norwegian Research Information Repository