用于人体上肢运动姿态监测的聚吡咯导电织物的机电性能评价.pdf

卷6期
中国生物医学工程学报
2015年12月
Chinese Journal of Biomedical Engineering
December 201
用于人体上肢运动姿态监測的聚呲咯导电织物的机电性能评价
张晓峰李国豪胡吉永”杨旭东
于
(东华大学纺织学院纺织酒料技术教育部重点实验室,上海201620)
摘要:针对当前可穿戴电子产品对柔性可拉伸纤维基传感元件的需求,探讨导电弹力机织物用于监测人体上肢
复杂运动姿态的可行性。为此,采用原位聚合法制各3种不同类型的聚呲略导电织物(棉/氨斜纹、棉/領平纹和
涤/氨平纹织物),采用打描电镜(SEM)观察聚合之后聚吡咯在织物中的分布状态;分别以这3种导电织物为传感
元件,制作姿态监测织物传感器,进行上肢运动状态的准静态测试。扫描电镜图显示,聚叱略不仅吸附在织物表
面,且被吸附在织物内部的每一根纤维表配,可反映所制备导电织物作为传感器敏感材料的稳定性。准静态运动
的测试结果表明,导电织物拉伸变形时,电阻变化的方向性差异能用于表征人体上肢的不同运动姿态,且表征过程
中3种织物的电阻变化无明显差异。随后的棉/氨平纹导电织物弯曲运动实时测试表明,聚吡咯导电织物能够实
时呈现人体关节的运动幅度及运动次数。通过观测聚吡咯导电织物的拉伸电阻变化及其方向性差异,可准确反映
上肢的弯曲、旋转及其复合运动。
关键词:弹力纠物;电阻;上肢运动;弯曲;旋转
中图分类号R318文献标志码A文章编号0258-8021(2015)060670-07
Mechanic-electrical Property Characterization of Ppy-coated Conductive
Woven Fabric for Human Upper Limb Motion Monitoring
Zhang Xiaofeng Ii Guohao Hu Jiyong Yang Xudong Ding Xin
Key Lab of extie Science echnology, Ministry of Education, Donghua University, Shanghai 201620, China)
Abstract: The emerging wearable electronics require a kind of fiber-based flexible and stretchable sensing
elements. It is studied for the capability of conductive woven stretch fabric in sensing human upper limb motion
behavior as well as its sensing mechanism. This article proposed three types of polypyrrole(Ppy) -coated
woven fabrics by in-situ polymerization, i. e. C /SP plain fabric, C/SP twill fabric and T/SP plain fabric. The
scanning electron microscopy (SEM was used to observe the distribution of polypyrrole on fabric as well as
fibers. Each of three Ppy-coated fabrics was considered as the sensing element to test the quasi-static bending
and rotation motion. From the scanning electron microscopy( SEM of the fabric after polymerization, it can be
seen that the Ppy was not only adsorbed on the surface of the fabric but on the every fiber inside of the fabric
hich represented the resistance against mechanical abrasion. The results of the quasi-static test showed that all
of the three fabrics can reflect the hurnan limb motion. and the change of their resistances had no observable
difference. And then, the C/SP plain fabric was taken an example to test the real-time bending molion of limb
motion. The results of the real-time test showed the Ppv-coated woven fabrics can refleet real-time motion
amplitude and numbers of the motion. It is concluded that the directional differences of the resistance of the
Ppy-coated woven fabrics can reflect the bending and rotatory movement of the human upper limbs
Key words: stretch fabric; electrical resistance; upper limb movement; bent; rotatory
doi:10.3969/j.isn.0258-8021.2015.06.005
收稿日期:2015-05-15,录用日期:2015-10-30
基金项:国家自然科学基金(51405079);中国博士:后科学基金(2015M570307);中央高校基本科研业务费专项资金
通信作者(Correspondingauthor)、E--nail:huiy@dhu.edu.cn