Abstract
Our aim is to develop the system that take someone by the hand and teach him step by step. By using this system, we instruct ideal motion like the throw motion of baseball, the pose of the dance, and the application of craftsmanship. It is necessary to measure learner's joint angle. In this paper we propose a novel system that measures the joint angle with bend sensors. The bend sensor doesn't disturb movement because it is light and soft. Concretely, it measures the joint angle of articulatio humeri (2-DOF). To ease the nonlinearity of the sensor and the influence of the mutual interference between sensors, we have done the calibration of two dimensions. From the experimental results, it is confirmed the improvement of the measurement accuracy.
