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Dominique Chapuis

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Publications associées (21)

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A Haptic Knob with a Hybrid Ultrasonic Motor and Powder Clutch Actuator

Hannes Bleuler, Dominique Chapuis, Etienne Burdet, Xavier Michel

In haptics, the forces to be displayed vary widely in terms of magnitude and bandwidth. A single actuator can hardly comply with these requirements. It has thus been proposed to combine electrical motors and passive devices in a hybrid actuator to cover a ...

2007

Investigation of a Cable Transmission for the Actuation of MR Compatible Haptic Interfaces

Hannes Bleuler, Dominique Chapuis, Roger Gassert, Etienne Burdet, Ganesh Gowrishankar

This paper investigates a cable transmission to remotely actuate MR compatible robots over a distance of several meters. Such a transmission could be an interesting solution for haptic interfaces for neuroscience studies performing force feedback during fu ...

2006

A 2-DOF fMRI Compatible Haptic Interface to Interact with Arm Movements

Hannes Bleuler, Dominique Chapuis, Roger Gassert, Etienne Burdet, Olivier Lambercy, Ludovic Dovat, Yves Ruffieux

This paper describes a two-degrees-of-freedom haptic interface to investigate the brain mechanisms of human motor control, which is capable of safely and gently interacting with human arm motion during functional magnetic resonance imaging (fMRI). A hydros ...

2006

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Functional brain exploration methodologies such as functional magnetic resonance imaging (fMRI) are critical tools to study perceptual and cognitive processes. In order to develop complex and well-controlled fMRI paradigms, researchers are interested in us ...

2006

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We are developing haptic interfaces compatible with functional magnetic resonance imaging (fMRI) to study the brain mechanisms of motor control in humans. This paper describes the different phases of our project, examines the constraints and presents possi ...

Springer2006

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Using haptic interfaces in combination with functional magnetic resonance imaging (fMRI) could lead to important insights into the brain mechanisms of human motor control and related dysfunctions. However, in addition to the usual requirements for haptic i ...

IEEE2006

Actuation Methods for Applications in MR Environments

Hannes Bleuler, Dominique Chapuis, Roger Gassert, Etienne Burdet, Ludovic Dovat

The choice of an adequate actuation method is a central issue in the development of any mechatronic device and strongly determines the dynamic performances of the system. This choice is particularly difficult for robotic systems working within a magnetic r ...

2006

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Magnetic levitation is an interesting concept in applications where friction and wear-particle contamination should be avoided. In this respect, a former study has shown that diamagnetic levitation, in conjunction with an electrodynamic impulse drive, is a ...

2006

Preliminary Investigations on a Diamagnetically Levitated Linear Conveyor

Hannes Bleuler, Dominique Chapuis, Roland Moser, François Barrot, Laurent Sache, Thomas Bosgiraud

Diamagnetic levitation is the only passive levitation at room temperature. It is interesting to use this principle for a contactless conveyor in applications where friction and wear-particle contamination should be avoided such as in a microfactory. Using ...

2006

FMRI compatible haptic interface actuated with traveling wave ultrasonic motor

Yves Perriard, Dominique Chapuis, Roger Gassert, Markus Flückiger, Matteo Bullo

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 ...

2005