可穿戴计算机
导电体
织物
电极
钥匙(锁)
计算机科学
人工智能
电气工程
生物医学工程
材料科学
工程类
物理
嵌入式系统
复合材料
计算机安全
量子力学
作者
Rama Reddy Rajanna,N. Sriraam,Prabhu Ravikala Vittal,Uma Arun
出处
期刊:IEEE Sensors Journal
[Institute of Electrical and Electronics Engineers]
日期:2019-10-07
卷期号:20 (3): 1573-1581
被引量:33
标识
DOI:10.1109/jsen.2019.2946058
摘要
Electrocardiogram (ECG) signal monitoring is one of the essential techniques for determining the physiological state of human beings. Long-term ECG monitoring is very much essential for the diagnosis and treatment of infrequent arrhythmic episodes. Although, most of the wearable microelectronic ECG implementations employ the well-established surface electrodes technology for bio-potential recordings; they are found to be susceptible to skin irritation and influence the skin-contact impedance to larger extent in long-term monitoring applications. Integration of such sensors into wearable intelligent biomedical clothing is not feasible. This specific research study determines the application of two different conductive textile fabric materials, namely, the woven conductive silver and conductive knitted jersey as dry textile electrodes for ECG biopotential acquisition. The skin-electrode contact impedance measurements for both electrodes presented reduced skin-contact impedance of less than 1 $\text{M}\Omega $ /cm 2 compared to 1–5 $\text{M}\Omega $ /cm 2 as reported in literature. The performance of the proposed textile sensors is evaluated qualitatively through visual inspection and quantitatively using metrics such as power spectral density, kurtosis, baseline wander analysis, and signal-to-noise ratio (SNR). The obtained quantitative measures were compared with standard clinical grade conductive-gel based disposable Ag/AgCl surface electrodes. The simulation and comparison studies showed that, the proposed textile electrodes exhibit acceptable performance for ECG acquisition and in some instances improved performance than the traditional commercial disposable gel-based surface electrodes.
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