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Sensors 2017, 17(12), 2708; https://doi.org/10.3390/s17122708

Wearable Stretch Sensors for Motion Measurement of the Wrist Joint Based on Dielectric Elastomers

1
Department of Mechanical Engineering, Harbin Institute of Technology, Weihai 264209, China
2
Department of Materials Science and Engineering, UCLA, Los Angeles, CA 90095, USA
3
Department of Electrical Engineering, Harbin Institute of Technology, Weihai 264209, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 15 September 2017 / Revised: 19 November 2017 / Accepted: 21 November 2017 / Published: 23 November 2017
(This article belongs to the Special Issue Wearable and Ambient Sensors for Healthcare and Wellness Applications)
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Abstract

Motion capture of the human body potentially holds great significance for exoskeleton robots, human-computer interaction, sports analysis, rehabilitation research, and many other areas. Dielectric elastomer sensors (DESs) are excellent candidates for wearable human motion capture systems because of their intrinsic characteristics of softness, light weight, and compliance. In this paper, DESs were applied to measure all component motions of the wrist joints. Five sensors were mounted to different positions on the wrist, and each one is for one component motion. To find the best position to mount the sensors, the distribution of the muscles is analyzed. Even so, the component motions and the deformation of the sensors are coupled; therefore, a decoupling method was developed. By the decoupling algorithm, all component motions can be measured with a precision of 5°, which meets the requirements of general motion capture systems. View Full-Text
Keywords: dielectric elastomer sensors; wearable sensors; motion capture; soft sensors dielectric elastomer sensors; wearable sensors; motion capture; soft sensors
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Huang, B.; Li, M.; Mei, T.; McCoul, D.; Qin, S.; Zhao, Z.; Zhao, J. Wearable Stretch Sensors for Motion Measurement of the Wrist Joint Based on Dielectric Elastomers. Sensors 2017, 17, 2708.

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