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PC-Keyboard with force feedback: Sensorless position detection by current measurement
Related publications (44)
Integrated Hall Magnetic Angle Sensors
A magnetic angle sensor is a matched combination of a permanent magnet, affixed to a rotating shaft, and a magnetic field sensor. The magnet part of the angle sensors is configured so as to create either a magnetic field with an angle-dependent component p ...
Soc Microelectronics, Electron Components Materials-Midem2014Magnetic Model of the CERN Proton Synchrotron
In this thesis, we present development of the first magnetic model of the main Proton Synchrotron magnets. The operation of the machine and conducting research on increasing its performance require a significant amount of the magnetic field data for the op ...
EPFL2013Design of a quench protection system for a coated conductor insert coil
Coated conductors are promising material for the construction of high field magnets, but the slow propagation velocity of the normal zone makes the protection against quenches a critical issue. The quench protection system for a small insert coil under dev ...
IEEE-Inst Electrical Electronics Engineers Inc2012A new method for internal-external rotation measurement in a prosthetic knee
In this work, a magnetic measurement system was designed and tested to estimate the Internal-External rotation between the Tibial and Femural parts of a knee prosthesis. To obtain this, the sensors were inserted in polyethylene part while a permanent magne ...
2012Ring magnets for magnetic beads trapping in a capillary
Hubert Girault, Anne-Laure Gassner
This paper introduces the concept of ring magnets for magnetic beads (MBs) trapping in a capillary. Such magnets enable an easy insertion of a capillary simply like a pearl on a string. With this system, high magnetic forces are obtained thanks to the prox ...
Royal Society of Chemistry2011Magnetic Stationary Phases for Protein Adsorption
Magnetic beads (MB) have now proven to be a powerful tool in both research and biomedical applications. They are available in a wide range of sizes (from nm to several µm) and their surface can be modified with molecules having biological specificities and ...
EPFL2011An Implantable System for Angle Measurement in Prosthetic Knee
Kamiar Aminian, Arash Arami, Hooman Dejnabadi
In this work we designed and tested an in-vivo measurement system of prosthetic knee joint angles. The system included a small permanent magnet in the femoral part and three magneto resistance sensors placed in the polyethylene part. The sensor configurati ...
2011Slotless Permanent-Magnet Machines: General Analytical Magnetic Field Calculation
Yves Perriard, Pierre-Daniel Pfister
This paper presents a general analytical model for predicting the magnetic field of slotless permanent-magnet machines. The model takes into account the effect of eddy currents in conductive regions and notably in conductive permanent magnets without negle ...
2011Design of Magnetic Switchable Device (MSD) and applications in climbing robot
Francesco Mondada, Hannes Bleuler, Michael Bonani, Stéphane Magnenat, Frédéric Rochat, Patrick Schoeneich
A Magnetic Switchable Device (MSD) is a ferromagnetic circuit using permanent magnets where the flux can circulate between different paths when its configuration is changed. This routes or cancels the flux through specific surfaces, and thus turns on or of ...
World Scientific2010PM motor sensorless position detection based on iron B-H local hysteresis
Yves Perriard, Miroslav Markovic, Omar Scaglione
A sensorless position detection technique for a permanent magnet (PM) motor with non-salient rotor is presented. It is shown that the phase self inductances and resistances measured at higher frequencies vary slightly with the rotor position. The origin of ...
2009