Electromagnetic Linear Actuator with Two Stators and One Rotor for Tactile Display

Abstract

This paper proposes a novel linear actuator for a tactile display, especially for a Braille interface aimed for the visually impaired, and for a new human haptics interface. The features of such actuators may be evaluated using factors such as output force, stroke, and compactness. The proposed actuator shows better performance in terms of stroke, compactness, and output force compared with existing actuators. The proposed actuator is an electromagnetic linear mini-actuator with two stators and one moving winding. The direction of the output force can be controlled by changing polarity of the input current. The structure of the proposed actuator, simulations, and the experimentally measured data will be presented in this paper.