Fig. 2From: Cognition-based variable admittance control for active compliance in flexible manipulation of heavy objects with a power-assist robotic systema 1-DOF PARS made of ball screw system for lifting lightweight objects, b an object (box), c a human user lifts an object with the PARS intuitively. In c, the marks show the initial (start) and the end/target position of the lifting trajectoryBack to article page