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Genetic Algorithm (GA) is an optimization procedure which can be applied to the identification of the nonlinear structure of a dynamic model by using experimental data. In this paper, the GA is introduced to identify the precision stage with the nonlinear friction. By means of the GA approach with a nonlinear polynomial model, the structure as well as its coefficients can be modeled accurately, and...
In this paper, a design method of the reaction force control system for ultra-precision stage which equips vibration control system, is proposed. Taking the application to semiconductor manufacturing into consideration, the designed system deals with both the reaction force due to the stage movement and the vibration from the external environment. The experimental setup for a 6-degree of freedom (DOF)...
This paper proposes a simple tactile sensing and control method for robot to realize an active object surface recognition. The tactile sensor implemented on the robot hand consists of three force sensitive resistors with the peripheral circuits. The robot arm equipped with the sensor can perform active object recognition. Our research goal is to realize an effective robot controller for the 3D object...
Stimuli-responsive polymers and gels have been applied to biomimetic actuators or artificial muscles. Biomimetic robots using such materials can move like a living creature. Especially, electroactive polymers are said to be promising materials as advanced soft actuators. Its mechanical motion is controlled by external stimuli such as a change in solvent composition, pH, temperature and electric field...
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