织物电极的皮肤-电极接触阻抗测量方法分析  

Detection Methods for Skin-electrode Contact Impedance of Textile Electrodes

作　　者：宋晋忠[1] 陈华[1] 张辉[2] 陈炜[1] 余新明[1] 

机构地区：[1]中国航天员科研训练中心,北京100094 [2]浙江纺织服装职业技术学院,浙江宁波315211

出　　处：《现代生物医学进展》2015年第24期4777-4781,共5页Progress in Modern Biomedicine

基　　金：国家自然科学基金项目(61401417;51303157);国家重大科学仪器设备开发专项(2013YQ190467);航天医学基础与应用国家重点实验室研究基金项目(SMFA13B03;SMFA15A01)

摘　　要：随着可穿戴式健康监测技术的发展,新型心电传感器-织物电极成为人们关注的热点,本文对织物电极的皮肤-电极接触阻抗测量方法进行了综述。首先介绍了织物电极的概念,分析了织物电极的皮肤-电极电化学界面、皮肤-电极电化学界面的等效电路和简化电路模型,得出了皮肤-电极接触阻抗的计算公式;其次,将皮肤-电极接触阻抗的测量方法归纳为直接测量法、参比测量法和模拟皮肤测量法三类,讨论了它们的测量原理和优缺点。本文认为需将模拟皮肤测量法和真实皮肤测量法有机结合,才能有效评价织物电极的阻抗特性,为织物电极的性能评价和心电信号采集电路的设计提供重要依据。最后,本文对织物电极待解决的问题进行了分析讨论。With the development of wearable health monitoring technology, the textile electrode as a new sensor technology for detecting electrocardiogram（ECG） has become focus of attention. The detection methods for skin-electrode contact impedance（SECI） of textile electrodes were reviewed in this paper. Firstly, the concept of textile electrodes was introduced. The skin-electrode electrochemical interface（SEEI）, the equivalent circuit and simplified circuit of SEEI were analyzed, and the calculation formula of SECI was discussed. Then, the detection methods of SECI were divided into three categories, i.e. direct detection method, reference detection method,and simulation skin detection method. And their detection principles, advantages and disadvantages were analyzed. It was considered that simulation skin detection method and the real skin detection method should be combined to effectively evaluate SECI, which will provide an important basis for performance evaluation of textile electrodes and the design of ECG signal acquisition circuit. Finally, some problems of textile electrodes, not solved, were discussed in the paper.

关 键 词：织物电极 心电 皮肤-电极接触阻抗 等效电路 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]