Next Article in Journal
Rapid Characterization of Vegetation Structure with a Microsoft Kinect Sensor
Next Article in Special Issue
Fingerprint Identification Using SIFT-Based Minutia Descriptors and Improved All Descriptor-Pair Matching
Previous Article in Journal
Energy Harvesting Thermoelectric Generators Manufactured Using the Complementary Metal Oxide Semiconductor Process
Previous Article in Special Issue
Label-Free Potentiometry for Detecting DNA Hybridization Using Peptide Nucleic Acid and DNA Probes
Sensors 2013, 13(2), 2368-2383; doi:10.3390/s130202368
Article

Development of a Compact Wireless Laplacian Electrode Module for Electromyograms and Its Human Interface Applications

1
, 2
, 3
, 4
, 5
, 6
, 6
, 7
, 8
 and 9,*
Received: 7 December 2012; in revised form: 24 January 2013 / Accepted: 2 February 2013 / Published: 8 February 2013
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Japan 2012)
View Full-Text   |   Download PDF [875 KB, uploaded 21 June 2014]   |   Browse Figures
Abstract: In this study, we developed a compact wireless Laplacian electrode module for electromyograms (EMGs). One of the advantages of the Laplacian electrode configuration is that EMGs obtained with it are expected to be sensitive to the firing of the muscle directly beneath the measurement site. The performance of the developed electrode module was investigated in two human interface applications: character-input interface and detection of finger movement during finger Braille typing. In the former application, the electrode module was combined with an EMG-mouse click converter circuit. In the latter, four electrode modules were used for detection of finger movements during finger Braille typing. Investigation on the character-input interface indicated that characters could be input stably by contraction of (a) the masseter, (b) trapezius, (c) anterior tibialis and (d) flexor carpi ulnaris muscles. This wide applicability is desirable when the interface is applied to persons with physical disabilities because the disability differs one to another. The investigation also demonstrated that the electrode module can work properly without any skin preparation. Finger movement detection experiments showed that each finger movement was more clearly detectable when comparing to EMGs recorded with conventional electrodes, suggesting that the Laplacian electrode module is more suitable for detecting the timing of finger movement during typing. This could be because the Laplacian configuration enables us to record EMGs just beneath the electrode. These results demonstrate the advantages of the Laplacian electrode module.
Keywords: electromyogram (EMG); Laplacian derivation; wireless electrode module; Human-computer interface; technical aids for persons with physical disabilities; finger Braille; prosodic information electromyogram (EMG); Laplacian derivation; wireless electrode module; Human-computer interface; technical aids for persons with physical disabilities; finger Braille; prosodic information
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Fukuoka, Y.; Miyazawa, K.; Mori, H.; Miyagi, M.; Nishida, M.; Horiuchi, Y.; Ichikawa, A.; Hoshino, H.; Noshiro, M.; Ueno, A. Development of a Compact Wireless Laplacian Electrode Module for Electromyograms and Its Human Interface Applications. Sensors 2013, 13, 2368-2383.

AMA Style

Fukuoka Y, Miyazawa K, Mori H, Miyagi M, Nishida M, Horiuchi Y, Ichikawa A, Hoshino H, Noshiro M, Ueno A. Development of a Compact Wireless Laplacian Electrode Module for Electromyograms and Its Human Interface Applications. Sensors. 2013; 13(2):2368-2383.

Chicago/Turabian Style

Fukuoka, Yutaka; Miyazawa, Kenji; Mori, Hiroki; Miyagi, Manabi; Nishida, Masafumi; Horiuchi, Yasuo; Ichikawa, Akira; Hoshino, Hiroshi; Noshiro, Makoto; Ueno, Akinori. 2013. "Development of a Compact Wireless Laplacian Electrode Module for Electromyograms and Its Human Interface Applications." Sensors 13, no. 2: 2368-2383.


Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert