织物基表面生物电干电极的性能评价仪器及方法
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摘要
为定量评价织物基表面生物电干电极的性能,本课题组在无源测量方案的基础上开发了一套能够模拟心电信号的有源测量仪器。本文研究共选择5种银/氯化银(Ag/AgCl)织物基表面生物电干电极对仪器进行了测试和评估。研究结果显示,峰值时间间隔的偏差率均小于1%,电压幅度衰减率的最大值为7.2%,噪声幅度均低于0.004 mV;峰值时间偏移量的变异系数低于8%,电压幅度的变异系数低于2%,噪声幅度的变异系数低于10%。研究表明,该仪器在测量模拟心电信号时有良好的可重复性和稳定性。本文提出的有源测量仪器能够为表面生物电干电极的性能评价和标准制定提供一种新方法。
In order to quantitatively evaluate the performance of dry electrode for fabric surface bioelectricity, a set of active measuring devices that can simulate electrocardiosignal has been developed on the basis of passive system by our group. Five Ag/AgCl fabric dry electrodes were selected to test and evaluate the devices. The results show that the deviation ratios of peak time interval of the five electrodes are all less than 1%. The maximum voltage amplitude decay rate is 7.2%, and the noise amplitudes are lower than 0.004 mV. The variable coefficient of peak time offset is less than 8%. The variable coefficient of voltage amplitude is less than 2%. The variable coefficient of noise amplitude is less than 10%.Research shows the devices has good repeatability and stability in measuring the simulated electrocardiosignal. The active measuring devices proposed in this paper can provide a new method for performance evaluation and standard formulation of surface bioelectricity dry electrode.
In order to quantitatively evaluate the performance of dry electrode for fabric surface bioelectricity, a set of active measuring devices that can simulate electrocardiosignal has been developed on the basis of passive system by our group. Five Ag/AgCl fabric dry electrodes were selected to test and evaluate the devices. The results show that the deviation ratios of peak time interval of the five electrodes are all less than 1%. The maximum voltage amplitude decay rate is 7.2%, and the noise amplitudes are lower than 0.004 mV. The variable coefficient of peak time offset is less than 8%. The variable coefficient of voltage amplitude is less than 2%. The variable coefficient of noise amplitude is less than 10%.Research shows the devices has good repeatability and stability in measuring the simulated electrocardiosignal. The active measuring devices proposed in this paper can provide a new method for performance evaluation and standard formulation of surface bioelectricity dry electrode.
引文
1陈伟伟,高润霖,刘力生,等.《中国心血管病报告2017》概要.中国循环杂志,2018,33(1):1-8.
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5 Neuman M R, Webster J G. Biopotential electrodes medical instrumentation:application and design.Third Edition.Wiley,1998:183-232.
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7 Uter W,Schwanitz H J.Contact dermatitis from propylene glycol in ECG electrode gel.Contact Dermatitis,1996,34(3):230-231.
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10 Bystricky T, Moravcova D, Kaspar P, et al. A comparison of embroidered and woven textile electrodes for continuous measurement of ECG//39th International Spring Seminar on Electronics Tec hnology(ISSE), Pilsen, Czech Republic:IEEE.2016:7-11.
11 Cai Zhipeng,Luo Kan,Liu Chengyu,et al. Design of a smart ECG garment based on conductive textile electrode and flexible printed circuit board.Technol Health Care,2017,25(4):815-821.
12 Jiang Yanbing,Samuel O W,Liu Xueyu,et al. Effective biopotential signal acquisition:comparison of different shielded drive technologies.Applied Sciences,2018,8:276.
13 Liu H,Kang W,Tao X,et al.Performance evaluation of surface biopotential dry electrodes based on PSD and EIS.International Journal of Advancements in Computing Technology,2012,4(20):497-505.
14 Westbroek P,Priniotakis G,Palovuori E,et al. Quality control of textile electrodes by electrochemical impedance spectroscopy.Textile Research Journal,2006,76(2):152-159.
15 Beckmann L,Neuhaus C,Medrano G,et al.Characterization of textile electrodes and conductors using standardized measurement setups.Physiol Meas,2010,31(2):233-247.
16 Liu Hao, Tao Xiaoming, Xu Pengjun, et al. A dynamic measurement system for evaluating dry bio-potential surface electrodes.Measurement,2013,46(6):1904-1913.
2李莎,陈雨,刘皓,等.表面生物电织物干电极测试平台的制作及性能评价.纺织报告,2016,(11):33-35,45.
3梁丽君,胡瑶,刘皓,等.男性心电监护服装电极最佳位置的设计研究.生物医学工程学杂志,2017,34(2):208-213.
4宋晋忠,严洪,宫国强,等,用于心电信号采集的织物电极技术研究进展.传感器与微系统,2015,(10):4-7.
5 Neuman M R, Webster J G. Biopotential electrodes medical instrumentation:application and design.Third Edition.Wiley,1998:183-232.
6 Xu P J, Zhang H, Tao X M. Textile-structured electrodes for electrocardiogram.Textile Progress,2008,40(4):183-213.
7 Uter W,Schwanitz H J.Contact dermatitis from propylene glycol in ECG electrode gel.Contact Dermatitis,1996,34(3):230-231.
8 Coskey R J.Contact dermatitis caused by ECG electrode jelly.Arch Dermatol,1977,113(6):839-840.
9 Huigen E,Peper A,Grimbergen C A.Investigation into the originof the noise of surface electrodes.Med Biol Eng Comput,2002,40(3):332-338.
10 Bystricky T, Moravcova D, Kaspar P, et al. A comparison of embroidered and woven textile electrodes for continuous measurement of ECG//39th International Spring Seminar on Electronics Tec hnology(ISSE), Pilsen, Czech Republic:IEEE.2016:7-11.
11 Cai Zhipeng,Luo Kan,Liu Chengyu,et al. Design of a smart ECG garment based on conductive textile electrode and flexible printed circuit board.Technol Health Care,2017,25(4):815-821.
12 Jiang Yanbing,Samuel O W,Liu Xueyu,et al. Effective biopotential signal acquisition:comparison of different shielded drive technologies.Applied Sciences,2018,8:276.
13 Liu H,Kang W,Tao X,et al.Performance evaluation of surface biopotential dry electrodes based on PSD and EIS.International Journal of Advancements in Computing Technology,2012,4(20):497-505.
14 Westbroek P,Priniotakis G,Palovuori E,et al. Quality control of textile electrodes by electrochemical impedance spectroscopy.Textile Research Journal,2006,76(2):152-159.
15 Beckmann L,Neuhaus C,Medrano G,et al.Characterization of textile electrodes and conductors using standardized measurement setups.Physiol Meas,2010,31(2):233-247.
16 Liu Hao, Tao Xiaoming, Xu Pengjun, et al. A dynamic measurement system for evaluating dry bio-potential surface electrodes.Measurement,2013,46(6):1904-1913.