P-OPT-06 Design of Moving Magnet Type Actuator Considering Effect of Coil Electromagnet(Optical Storage/Optical Devices for Storage,Technical Program of Poster Session)

Abstract

This paper investigates the method for both analyzing and optimizing moving-magnet-type actuators for optical pickups. Because of special characteristic of suggested electromagnet circuit, we consider not just electromagnetic force, but also solenoid effects that make coils to electromagnet when analyzing dynamic behavior of actuators. The moving-magnet-type actuator is fabricated and its dynamic behaviors are measured experimentally to validate the analysis method. To improve the dynamic behaviors of moving-magnet-type actuators based on analysis method, the structural simulation and electromagnetic simulation are connected to perform a coupled field analysis.