Publications de Olivier Pierre Chételat

Publications associées (7)

Force and Torque Analytical Models of a Reaction Sphere Actuator Based on Spherical Harmonic Rotation and Decomposition

Olivier Pierre Chételat, Yves Perriard, Leopoldo Rossini

This paper presents an analytical model for the force and torque developed by a reaction sphere actuator for satellite attitude control. The reaction sphere is an innovative momentum exchange device consisting of a magnetic bearings spherical rotor that ca ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Hybrid FEM-analytical force and torque models of a reaction sphere actuator

Olivier Pierre Chételat, Yves Perriard, Leopoldo Rossini

This paper presents a hybrid FEM-analytical model for the magnetic flux density, the force and torque of a Reaction Sphere (RS) actuator for satellite attitude control. The RS is a permanent magnet synchronous spherical actuator whose rotor is magnetically ...

IEEE Computer Society2013

Closed-loop magnetic bearing and angular velocity control of a reaction sphere actuator

Olivier Pierre Chételat, Yves Perriard, Leopoldo Rossini

This article presents the first closed-loop magnetic bearing and angular velocity experimental results of a reaction sphere actuator for satellite attitude control. The proposed reaction sphere is a permanent magnet spherical actuator whose rotor is suppor ...

Pergamon-Elsevier Science Ltd2015

Wearable Sensors for Frequency-Multiplexed EIT and Multilead ECG Data Acquisition

Olivier Pierre Chételat, Josias Basil Wacker, Fabian Braun, Michaël Rapin

This paper presents a wearable sensor architecture for frequency-multiplexed electrical impedance tomography (EIT) and synchronous multilead electrocardiogram (ECG) data acquisition. The system is based on a novel electronic sensing architecture, called co ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2019

Olivier Pierre Chételat

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Force and Torque Analytical Models of a Reaction Sphere Actuator Based on Spherical Harmonic Rotation and Decomposition

Hybrid FEM-analytical force and torque models of a reaction sphere actuator

Closed-loop magnetic bearing and angular velocity control of a reaction sphere actuator

Wearable Sensors for Frequency-Multiplexed EIT and Multilead ECG Data Acquisition

Analytical and experimental investigation on the force and torque of a reaction sphere for satellite attitude control

Back-EMF and Rotor Angular Velocity Estimation for a Reaction Sphere Actuator

An open-loop control strategy of a reaction sphere for satellite attitude control