佩多:嘘
材料科学
电阻抗
丝网印刷
电接点
电极
光电子学
复合材料
电气工程
聚合物
工程类
物理化学
化学
作者
Peter Zalar,Milan Saalmink,Daniele Raiteri,Jeroen van den Brand,Edsger C. P. Smits
标识
DOI:10.1002/adem.202000714
摘要
The electrical performance of screen‐printed dry electrodes on thermoplastic polyurethane substrates are evaluated according to their conformance to international standards, skin–electrode impedance, and ability to gather high quality electrocardiograms. The electrical behavior of seven screen‐printed electrodes (Ag, Ag/PEDOT:PSS, Ag/AgCl, Ag/AgCl/PEDOT:PSS, C, C/AgCl, and PEDOT:PSS) is compared to two commercially available gel electrodes (3M RedDot 50 and Philips NeoLead) which represent the state‐of‐the‐art. After basic standard electrical characterization (electrode–electrode impedance, direct current [DC] offset voltage, defibrillation recovery, bias stress, and noise), it is shown that layers such as AgCl or PEDOT:PSS help to reduce the contact impedance of dry electrodes. However, the quality of the electrical signal is primarily governed by the skin impedance, which, without physical disruption or preparation, maintains a high impedance. For this reason, the impedance of all screen‐printed dry electrodes allows the collection of electrocardiograms with a quality equal to that of gel electrodes. Dry electrodes, while capable of obtaining similar electrical signal quality also bring the advantages of reusability, comfort, and the capability for long‐term measurements.
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