Abstract
Knitted flexible sensors are sensors based on the loop structure of knitted fabric, which are soft and close-fitting. Monitoring finger motion can obtain useful information for some applications such as rehabilitation medicine, sports bionics, or human–computer interaction. In this paper, a conductive glove was knitted by SHIMA Seiki SWG 061N-15G computerized flat knitting machine. One experimenter wore it to measure motions data of index finger. The glove has a conductive intarsia area knitted by silver-nylon filaments. The experimenter performed static and dynamic test of hand posture, respectively, then observed the effect of figure bending characteristics on the glove resistance data. The result showed that human finger motion can be monitored successfully by the conductive glove without hard transducers, and both of the bending rate ( Br) and bending angle of the finger proximal interphalangeal joint ( Pba) affect the resistance change of the conductive area of the glove. In other words, the conductive glove has potentials to monitor and reflect human finger motions in detail.
Highlights
In recent years, flexible textile sensors have attracted considerable attention for monitoring human body or sensing in other fields
By controlling PIP bending angle (Pba) from gesture C to B, glove yielded resistance of up to 21 Ω, whereas when moving from gesture O to higher the instantaneous sensitivity of the conductive area is, the greater the resistance change (RC) values generated during the cycles are
It is known that Pba can cause significant difference in the RC of the conductive glove, which equals the maximum value minus the minimum value during a motion cycle
Summary
Flexible textile sensors have attracted considerable attention for monitoring human body or sensing in other fields. To study relationships between finger motion and resistance change (RC), static test and dynamic test were conducted, respectively. Finger bending characteristics can be reflected by monitoring resistance changing conditions, which can provide reference for the development of hand posture sensing gloves.
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