Hannes Bleuler

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An 8-mm diameter fibre robot positioner for massive spectroscopy surveys

Denis Gillet, Hannes Bleuler, Jean-Paul Richard Kneib, Mohamed Bouri, Laleh Makarem, Laurent Frédéric Jenni

Massive spectroscopic survey are becoming trendy in astrophysics and cosmology, as they can address new fundamental knowledge such as understanding the formation of the Milky Way and probing the nature of the mysterious dark energy. To enable massive spect ...

Oxford University Press2015

Encoded and Crossmodal Thermal Stimulation through a Fingertip-Sized Haptic Display

Olaf Blanke, Hannes Bleuler, Simon Gallo, Giulio Rognini, Laura Santos Carreras, Tristan Hubert Vouga

2015

The High-Resolution Magnetic Camera: A Novel Sensor for Eddy Current Testing

Hannes Bleuler, Marco Picasso, Pavel Kejik, Roland Moser, Gilles Raphaël Santi, David Florian Hippert

Eddy current techniques are often used to detect and, in some advanced applications, to characterize fatigue surface-breaking cracks appearing in mechanical parts. One of the major difficulties in this approach is to reliably separate the crack contributio ...

Ios Press2014

Characterization of Surface Cracks Through The Local Magnetic Field Induced by Eddy Currents

Hannes Bleuler, Marco Picasso, Pavel Kejik, Roland Moser, Gilles Raphaël Santi, David Florian Hippert

It is important to reliably characterize cracks in metallic mechanical parts in order to assess the serenity of damage due to fatigue. The most important parameter for this is the crack depth. This is notoriously difficult with standard Eddy current techni ...

Ios Press2014

The LegoPress: A Rehabilitation, Performance Assessment and Training Device

Hannes Bleuler, Mohamed Bouri, Jeremy Olivier, Maxime Olivier Jeanneret-Grosjean

In this paper we present the LegoPress, a simple and cost-effective robotic device intended to be used for leg-press movements in rehabilitation and training. Basic adjustments can be done on the sitting position so as to maximize comfort and adapt the pos ...

2014

Collision avoidance in next-generation fiber positioner robotic systems for large survey spectrographs

Denis Gillet, Hannes Bleuler, Jean-Paul Richard Kneib, Mohamed Bouri, Laleh Makarem, Laurent Frédéric Jenni

Some of the next generation massive spectroscopic survey projects, plan to use thousands of fiber positioner robots packed at a focal plane to quickly move in parallel the fiber-ends from the previous to the next target points. The most direct trajectories ...

2014

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In this paper we present a motorized hip orthosis to assist elderly people while walking, stair climbing and during the sit-to-stand transitions. The design is based on biomechanics considerations. Ranges of motion, velocities and torques of the hip joint ...

2014

Evaluation of an active optical system for lower limb motion tracking

Hannes Bleuler, Mohamed Bouri, Jeremy Olivier, Amalric Louis Ortlieb

Observation of lower limb kinematics is essential for the characterization of gait and related activities disorders. Robust, flexible and easy to use measurement systems are precious for patients’ follow-up in different medical domains. This study aims to ...

2014

A robotic platform for lower limb optical motion tracking in open space

Hannes Bleuler, Mohamed Bouri, Jeremy Olivier, Amalric Louis Ortlieb

Characterization of gait is largely used for research on locomotion or for clinical improvement and follow up. There exists two main technologies for measurement of the kinematics of walking: IMU systems and optical tracking. Inertial measurement units are ...

2014

Mechanisms for actuated assistive hip orthoses

Hannes Bleuler, Mohamed Bouri, Jeremy Olivier, Amalric Louis Ortlieb

Mobility is often a central problem for people having muscle weaknesses. The need for new devices to assist walking and walk related activities is therefore growing. Lower limb actuated orthoses have already proven their positive impact with paraplegic pat ...

Elsevier2014

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2014

A Ball-Screw Driven Motorized Hip Orthosis

Amalric Louis Ortlieb