DocumentCode :
1852796
Title :
A Capacitive Sensor System for Measuring Laplacian Electromyogram through Cloth: A Pilot Study
Author :
Ueno, A. ; Uchikawa, Y. ; Noshiro, M.
Author_Institution :
Tokyo Denki Univ., Tokyo
fYear :
2007
fDate :
22-26 Aug. 2007
Firstpage :
5731
Lastpage :
5734
Abstract :
A possibility for capacitive sensor system for measuring the surface Laplacian electromyogram (Laplacian EMG) was studied under conditions whereby a thin cloth was inserted between the electrodes and the skin of the subject. The system was designed based on a tri-polar concentric electrode unit and on a principle of the capacitive electrode involving the conductive electrodes, the cloth, and the skin. A pilot sensor and detecting circuit using this design were assembled and evaluated to explore the feasibility of this approach. The experimental results showed that the Laplacian EMG obtained in this way was comparable and synchronized with the surface EMG obtained using traditional bipolar electrodes, although its S/N was reduced. Though there are still a lot of challenges to be addressed to achieve practical performances, it seems promising for use in human-machine interfaces because the proposed approach eliminates discomfort due to conventional electrode-to-skin coupling.
Keywords :
biosensors; clothing; electromyography; interface phenomena; skin; Laplacian electromyogram; capacitive sensor system; cloth; human-machine interface; skin; tri-polar concentric electrode; Bioelectric phenomena; Capacitive sensors; Coupling circuits; Electric potential; Electrodes; Electromyography; Impedance; Insulation; Laplace equations; Skin; Adult; Clothing; Computer-Aided Design; Electric Capacitance; Electrodes; Electromyography; Equipment Design; Equipment Failure Analysis; Humans; Male; Monitoring, Ambulatory; Pilot Projects; Transducers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
ISSN :
1557-170X
Print_ISBN :
978-1-4244-0787-3
Type :
conf
DOI :
10.1109/IEMBS.2007.4353648
Filename :
4353648
Link To Document :
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