Abstract
This paper describes a sensory feedback system for the intelligent artificial arms. A 3DOF artificial arm, which generates elbow joint flexion/extension motion, forearm supination/pronation motion, and hand open/close, has been designed for an above elbow amputee. These motions are controlled based on EMG signals of the remained active muscles of the user. In the proposed artificial arm, pressure sensors are attached on the surface of fingers to measure the grasping force and estimate the weight of the grasping object. Slippage between the grasping object and the fingers is also detected by the pressure sensors. A DC motor and a vibrator are attached at the connecting part of the artificial arm to the user upper-arm for the sensory feedback.
