FMRI compatible haptic interface actuated with traveling wave ultrasonic motor

We are developing haptic interfaces compatible with functional Magnetic Resonance Imaging (fMRI) for neuroscience studies. The presented prototype with one rotary degree of freedom is actuated by a traveling wave ultrasonic motor operating under admittance control. Torque is sensed from the deflection of an elastic polymer probe via light intensity measurement over optical fibers. This concept allows us to place all electronic components outside the shielded MR room. Hence, the device can be used in conjunction with fMRI, providing torque and motion feedback simultaneously with imaging. Its compactness and simplicity facilitate the construction of multiple degree of freedom systems.


Publié dans:
2005 IEEE Industry Applications Conference, 2075-2082
Année
2005
Note:
Ecole Polytech Fed Lausanne, Integrated Acuators Lab, Lausanne, CH-1015 Switzerland.
Laboratoires:




 Notice créée le 2006-06-15, modifiée le 2019-08-12

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