抄録
This paper discusses maneuverability of a control stick using electromyogram (EMG). For simple discussion, step operation is treated. Considering the characteristics of neurons controlling the muscle of a human arm, we divide the step operation into two intervals. One is the transient interval from a start point to a target one. The other is the settling interval to the target point. We find that the maneuverability in the settling interval is important for the step operation. Then, we analyze maneuverability from the viewpoint of the stability of a dynamic model of the muscle and the control stick. It is shown that the improved maneuverability is achieved by increasing the viscosity of the control stick. Then, we define maneuverability index as time integration of the muscle impedance. Using EMG, the index is evaluated experimentally. We confirm that human feels best maneuverability when the index is minimum.
