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Paper: High Fill Factor Array of Piezoelectric Micromachined
Ultrasonic Transducers with Large Quality Factor

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Vol. 32, No. 8(2), S&M2292

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Sensors and Materials, Volume 33, Number 12(1) (2021)
Copyright(C) MYU K.K.
pp. 4105-4111
S&M2749 Letter of Special Issue
https://doi.org/10.18494/SAM.2021.3591
Published in advance: October 11, 2021
Published: December 16, 2021

Noise Reduction Using a Triple-layer Electrode in Conductive/Capacitive Hybrid Electrocardiogram Measurement [PDF]

Dairoku Muramatsu and Ken Sasaki

(Received August 18, 2021; Accepted September 30, 2021)

Keywords: electrocardiogram, R–R interval, driving, capacitive coupling, noise reduction

The aim of this study was to evaluate a conductive/capacitive hybrid electrocardiogram (ECG) measurement method for monitoring the drowsiness of a driver during car driving. A triple-layer capacitive-coupling electrode comprising driven-shield and sensing electrodes was introduced to reduce the ambient noise, such as the electrostatic induction noise caused by buttock friction. An experiment modeling a car interior showed that the triple-layer electrode successfully reduced the baseline fluctuation and stably measured the ECG R-peaks. The result shows the feasibility of stable R–R interval detection during driving using the conductive/capacitive hybrid ECG measurement system.

Corresponding author: Dairoku Muramatsu


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Cite this article
Dairoku Muramatsu and Ken Sasaki, Noise Reduction Using a Triple-layer Electrode in Conductive/Capacitive Hybrid Electrocardiogram Measurement, Sens. Mater., Vol. 33, No. 12, 2021, p. 4105-4111.



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