Development of a Linear Electromagnetic Sheet Actuator

Abstract

This paper proposes a thin linear electromagnetic actuator that utilizes a magnet sheet as its slider. The magnet sheet is actuated as a slider over a printed circuit board (PCB) that functions as a stator. Driven by a set of three sinusoidal currents with a phase shift of 𝜋/3, the prototype actuator achieved a synchronous motion with a thrust force density of 29.5 N/m2. With a flexible magnet sheet and a thin PCB, the proposed actuator demonstrated flexibility, which allows the actuator to be installed on a curved surface.