Title :
Development of a stepping motor using magnetic resonance magnetic field and piezo-brake mechanism
Author :
Zaman, Deddy Nur ; Kobayashi, Etsuko ; Sakuma, Ichiro ; Liao, Hongen
Author_Institution :
Dept. of Precision Eng., Univ. of Tokyo, Tokyo, Japan
Abstract :
We proposed a stepping motor actively using MR magnetic field and two piezo-brakes. Rotation generated by regulating oscillated pulse current through coil installed inside MR magnetic field. Stepwise rotation achieved by oscillate coil unit and limit rotation in certain angle mechanically. Controlling piezo-brakes enables stepwise motion of the rotor in both direction, also enables lock condition and free condition. Piezo-brake mechanism and MR-compatible motor control was introduced.
Keywords :
brakes; coils; machine control; magnetic fields; magnetic resonance; stepping motors; magnetic resonance magnetic field; oscillate coil unit; oscillated pulse current; piezobrake mechanism; stepping motor; stepwise motion; stepwise rotation; Actuators; Coils; Hysteresis motors; Magnetic fields; Magnetic resonance imaging; Surgery; Torque; MR Magnetic Field; Piezo-Brake; Stepping motor;
Conference_Titel :
Control Conference (ASCC), 2011 8th Asian
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-61284-487-9
Electronic_ISBN :
978-89-956056-4-6
