種々の手指姿勢における指輪型指先力計測センサの出力特性評価に関する研究

抄録

In this paper, method to estimate fingertip force with ring-type wearable sensor is proposed. To select effective exercises, it is important to accurately measure motion of patient, such as postures and force. Especially, fingers perform complicated movements, loss of function significantly adverse effects on active of living. Measurement of fingertip force is relatively difficult, because it is necessary to use load cells in the target object or between finger and object. Therefore, in previous study, we focused on the relationship between tension of tendon and fingertip force, and proposed ring-type wearable sensor to estimate the fingertip force. First, we investigate the relationship between finger joint angle and sensor output at the condition that the fingertip force is zero. Next, the relationship at the condition that fingertip force is applied is investigated too. Finally, on the basis of above investigations, the relational expression between the joint angle, the ring-type sensor output, and the fingertip force was derived as new calibration formula for estimating fingertip force.