Identification of Internal Impedance Parameters of Multi-Inertial Environment for Haptic Rendering

In this paper, we propose a method of identifying the internal physical parameters of a multi-inertial environment using force control. In the proposed method, new resonance frequencies are observed by changing the gain of force control, and each physical parameter is identified using numerical analysis. The identified parameters are expressed by a finite-difference time-domain method suitable for representation of a multi-inertial environment, and haptic sensation is rendered by admittance control. We identify and render the environment by simulation and experiment, and we demonstrate the effectiveness of the method.