ACTUATOR 2016 Manuscript P 58


Author: Hubert Borgmann
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Pages: 4
Language: English
Publication date: 01/06/2016
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Manuscript P 58 published in Conference Proceedings ACTUATOR 2016
MRI-Compatible Piezoelectric Actuator

Y. Bernard1*, R. Khairi1, A. Razek1, M. Poirier-Quinot2, J-C. Ginefri2, R-M. Dubuisson2
1GeePs, UMR 8507, CentraleSupelec, UPMC, Univ Paris-Sud,
11 rue Joliot-Curie, Gif Sur Yvette, France
2IR4M, UMR 8081, Univ Paris-Sud
Campus d'Orsay Bat 220, Orsay, France

Abstract:
The MRI employs an extreme static magnetic field (1-7 Tesla), gradient magnetic fields and electromagnetic radio frequency pulses. In this particular environment, classical electromagnetic actuators, generally based on ferromagnetic and conductor, cannot work correctly. The work is started with a numerical simulation. The MRI environment is presented using a finite element approach. Different piezoelectric materials and structures are then introduced into this environment to determine the optimal configuration. This work is completed with an experimental validation using a standard hospital MRI (static field of 1.5 T and radio frequency field of 63.9 MHz). Finally, the simulation and experiment results are used to give some recommendations in the design of MRI-compatible piezoelectric actuator.
El vendedor asume toda la responsabilidad de esta entrada.
Hubert Borgmann, MESSE BREMEN,
Project Manager ACTUATOR, International Conference and Exhibition on New Actuators and Drive Systems, Bremen, Germany, and Editor of the ACTUATOR Conference Proceedings (www.actuator.de)
Project Manager ITHEC, International Conference and Exhibition on Thermoplastic Composites, Bremen, Germany, and Editor of the ITHEC Conference Proceedings (www.ithec.de)

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