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Sensors 2014, 14(6), 10072-10080; doi:10.3390/s140610072

Characteristics Verification of an Independently Controllable Electromagnetic Spherical Motor

Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka Suita, Osaka 565-0871, Japan
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Received: 31 March 2014 / Revised: 23 May 2014 / Accepted: 4 June 2014 / Published: 10 June 2014
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Abstract

We have been developing electromagnetic spherical actuators capable of three-degree-of-freedom rotation. However, these actuators require complex control to realize simultaneous triaxial drive, because rotation around one axis interferes with rotation around another. In this paper, we propose a new three-degree-of-freedom actuator where 3-axes rotation can be controlled easily. The basic structure and the operating principle of the actuator are described. Then the torque characteristics and the dynamic characteristics are computed by employing 3D-FEM and the effectiveness of this actuator is clarified. Finally, the experimental results using the prototype of the actuator are shown to verify the dynamic performance. View Full-Text
Keywords: actuator; electromagnetic analysis; finite element method; permanent magnet motors actuator; electromagnetic analysis; finite element method; permanent magnet motors
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Maeda, S.; Hirata, K.; Niguchi, N. Characteristics Verification of an Independently Controllable Electromagnetic Spherical Motor. Sensors 2014, 14, 10072-10080.

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