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Paper Abstract and Keywords
Presentation 2019-03-15 15:50
Noise Evaluation Method for EEG Measurement System
Misaki Inaoka, Shintaro Izumi, Shusuke Yoshimoto, Toshikazu Nezu, Yuki Noda, Teppei Araki, Takafumi Uemura, Tsuyoshi Sekitani (Osaka Univ.) MICT2018-72
Abstract (in Japanese) (See Japanese page) 
(in English) A test equipment that can evaluate the contact resistance and amount of noise of EEG sensors is proposed in this study. An EEG is easily masked by the noise derived from contact resistance, because of their feebleness. To realize a low-noise measurement, the contact resistance and the amount of noise of EEG sensors need to be investigated prior to measuring the EEG. A pseudo-skin made of conductive rubber was employed in this study to evaluate the performance of the sensors, similar to actual working conditions. The proposed device is composed of the pseudo-skin, signal-generating circuits to imitate EEG signals and pseudo hum noise on a minute scale, and a coil to emit the pseudo hum noise into the test space. The contact resistance of the pseudo-skin can be compared to that of human foreheads. The experimental results indicated that the standard deviation of the contact resistance of the pseudo-skin is smaller than that of the human foreheads. This result demonstrated that the pseudo-skin is suitable for contact resistance evaluation of the EEG sensors. In addition, the correlation between contact resistance and the amount of noise was evaluated to assess the validity of the system. An increase in the amount of noise with the increasing contact resistance was observed from the results. Further improvement of the device and an intensive study of the evaluation method of noise are required in future, in order to establish an efficient evaluation method for EEG sensors.
Keyword (in Japanese) (See Japanese page) 
(in English) Noise Evaluation / Biosignal Measurement / Contact Resistance / / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 509, MICT2018-72, pp. 23-26, March 2019.
Paper # MICT2018-72 
Date of Issue 2019-03-08 (MICT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF MICT2018-72

Conference Information
Committee EMCJ MICT  
Conference Date 2019-03-15 - 2019-03-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MICT 
Conference Code 2019-03-EMCJ-MICT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Noise Evaluation Method for EEG Measurement System 
Sub Title (in English)  
Keyword(1) Noise Evaluation  
Keyword(2) Biosignal Measurement  
Keyword(3) Contact Resistance  
1st Author's Name Misaki Inaoka  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Shintaro Izumi  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Shusuke Yoshimoto  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Toshikazu Nezu  
4th Author's Affiliation Osaka University (Osaka Univ.)
5th Author's Name Yuki Noda  
5th Author's Affiliation Osaka University (Osaka Univ.)
6th Author's Name Teppei Araki  
6th Author's Affiliation Osaka University (Osaka Univ.)
7th Author's Name Takafumi Uemura  
7th Author's Affiliation Osaka University (Osaka Univ.)
8th Author's Name Tsuyoshi Sekitani  
8th Author's Affiliation Osaka University (Osaka Univ.)
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Date Time 2019-03-15 15:50:00 
Presentation Time 25 
Registration for MICT 
Paper # IEICE-MICT2018-72 
Volume (vol) IEICE-118 
Number (no) no.509 
Page pp.23-26 
#Pages IEICE-4 
Date of Issue IEICE-MICT-2019-03-08 

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