An FPC based flexible dry electrode with stacked double-micro-domes array for wearable biopotential recording system
An FPC based flexible dry electrode with stacked double-micro-domes array for wearable biopotential recording system
复制标题
基于 FPC 的柔性干电极，具有堆叠双微圆顶阵列，用于可穿戴生物电记录系统
DOI：
10.1007/s00542-016-2893-4
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发表时间：
2017-05-01
影响因子：
2.1
通讯作者：
Huang, Feng
中科院分区：
文献类型：
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作者：
Lin, Ke;Wang, Xinan;Huang, Feng
为了克服传统湿Ag/AgCl电极的缺点，本文提出了一种用于可穿戴生物电记录系统的具有堆叠双微圆顶阵列的新型柔性干电极。通过利用柔性印刷电路（FPC）基板和制造技术，我们设计了一种独特的结构，即小圆顶堆叠在大圆顶顶部。实验结果表明，所提出的电极可以部分破坏皮肤角质层而不会造成伤害：一方面，这可以增加电极与皮肤的接触面积；另一方面，这可以增加电极与皮肤的接触面积。另一方面确保电极牢固地锚定在皮肤表面。干电极的关键规格，例如电极-皮肤阻抗 (ESCI) 和信噪比 (SNR)，与标准湿 Ag/AgCl 电极相当。最后，为了验证所提出的电极在实际应用中的有效性，开发了原型可穿戴心电图记录系统。测量的心电图波形证明，所提出的电极比标准湿Ag/AgCl电极更加灵活，并且在长期运行时仍然保持良好的信号质量，具有超强的皮肤顺应性和舒适度。
To overcome drawbacks of the conventional wet Ag/AgCl electrodes, this paper proposed a novel flexible dry electrode with stacked double-micro-domes array for wearable biopotential recording system. By utilizing flexible printed circuit (FPC) substrate and fabrication technologies, we designed a unique structure of a small dome stacking on top of a large dome. Experiments results showed that the proposed electrode could partially disrupt the stratum corneum of the skin without harm: on one hand this allowed to increase the electrode–skin contacting area; on the other hand it ensured the electrode anchoring firmly on the skin surface. And the key specifications of the dry electrode, such as electrode–skin impedance (ESCI) and the signal–noise-ratio (SNR), were shown to be comparable with these of a standard wet Ag/AgCl electrode. Finally, to verify the effectiveness of the proposed electrode in the practical application, a prototype wearable ECG recording system was developed. The measured ECG waveform proved that the proposed electrode was much more flexible than the standard wet Ag/AgCl electrode and still retained good signal quality for long run with super skin compliance and comfort.