Highly Bendable and Rotational Textile Structure with Prestrained Conductive Sewing Pattern for Human Joint Monitoring. (22nd January 2019)

• Record Type: Journal Article
• Authors: Park, Sangki; Ahn, Seongcheol; Sun, Jingzhe; Bhatia, Divij; Choi, Dukhyun; Yang, Kap Seung; Bae, Jihyun; Park, Jong‐Jin
• Is Part Of: Advanced functional materials. Volume 29:Number 10(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-01-22
• Subjects: all‐textile -- controllable starting point of sensing -- highly conformable strain sensor -- wide dynamic range motion; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.201808369
• Languages: English
• ISSNs: 1616-301X

Abstract

Abstract: Human joints have respective ranges of motion and joint forces corresponding to each kind of joint; this necessitates considerations of the characteristics of human joints to fabricate wearable strain sensors conformable to the human body, and capable of precisely monitoring complex motions of the human body. In the present study, the "all textile‐based highly stretchable structure" that is capable of precisely sensing motions (folding and rotation) of the human joints (finger, wrist, elbow, spine, and knee) is fabricated by optimizing patterns (straight, blind, and zigzag) of conductive yarns employed as the conductive part of the strain sensor, and several textile substrates (braided elastic fabric, knit fabric, and woven fabric), having preferable elasticity and conformability employed for the fabrication of strain sensors suitable for human joints. In particular, the technology, enabling the prestraining of textile substrate, is exploited to fabricate a strain sensor that is capable of outputting selective signals corresponding to the folding motion of the spinal joint over a predetermined angle of motion, and the gait pattern of the wearer of the sensor, attached to his or her knee joint doing folding and rotational motions, is analyzed. Abstract : A textile‐based highly bendable and rotational strain sensor that consists of three different patterns (straight, blind, and zigzag) of conductive yarn and textile substrates is optimized for precisely sensing motions of the human joints. The prestrained textile strain sensor is capable of outputting selective signals by programming the starting point of sensing.