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  4. Evaluation of MR-Compatibility of Electrostatic Linear Motor
 
conference paper

Evaluation of MR-Compatibility of Electrostatic Linear Motor

Yamamoto, Akio
•
Ichiyanagi, Keigo
•
Higuchi, Toshiro
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2005
Proceedings of the IEEE International Conference on Robotics and Automation (ICRA)

This paper reports a new MRI (Magnetic Resonance Imaging) compatible actuator that can operate near an MRI without degrading its imaging quality. A high-power electrostatic motor is introduced and its MR-compatibility is examined, both experimentally and theoretically. The proposed motor was fabricated with only paramagnetic materials, and its MR-compatibility was evaluated by measuring the output performance of the motor and the signal-to-noise ratios of the MRI images. The experimental results showed that motor’s thrust force while positioned within the MRI is almost the same as that in normal operation. The signal-to-noise investigation indicated that the motor did not affect the MRI images when it was operated over 60 cm away from the MRI’s RF coil. The theoretical calculations showed that the magnetic field generated by the motor is relatively small and the effect of the MRI’s magnetic fields on the motor is negligible, suggesting that the motor is MR-compatible.

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Type
conference paper
DOI
10.1109/ROBOT.2005.1570677
Author(s)
Yamamoto, Akio
Ichiyanagi, Keigo
Higuchi, Toshiro
Imamizu, Hiroshi
Gassert, Roger  
Ingold, Martin
Sache, Laurent
Bleuler, Hannes  
Date Issued

2005

Published in
Proceedings of the IEEE International Conference on Robotics and Automation (ICRA)
Start page

3658

End page

3663

Subjects

[MEDICAL]

•

robotics

•

microtechnique

•

electrostatic motor

•

actuator

•

linear motor

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LSRO  
Available on Infoscience
June 11, 2006
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/230426
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