Publications de Jacques Jacot | EPFL Graph Search

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Échappement linéaire piézoélectrique

Jacques Jacot

Pour une collaboration avec une start-up suisse, le LAI a développé un mécanisme d'échappement linéaire contrôlé électriquement. Au cours du développement, de nombreuses alternatives ont été évoquées mais jamais étudiées en profondeur. Entre autres, l'utilisation d'actionneurs piézoélectriques offre des perspectives intéressantes. Le but de ce projet est de rechercher des solutions pour un échappement linéaire utilisant un actionneur ou moteur piézoélectrique avec comme objectif une structure mécanique aussi simple que possible. Les performances requises seront données à l'étudiant qui devra les utiliser afin de déterminer quelle solution offre les meilleures chances de réussite. Le principe retenu devra être modélisé et, si le temps le permet, un prototype sera construit afin d'en déterminer les performances principales que sont en particulier la force de poussée maximale qui peut être retenue ainsi que la consommation électrique en fonction de la poussée.

2015

3D Objects Localization Using Fuzzy Approach and Hierarchical Belief Propagation: Application at Level Crossings

Jacques Jacot, Alain Dufaux

Technological solutions for obstacle-detection systems have been proposed to prevent accidents in safety-transport applications. In order to avoid the limits of these proposed technologies, an obstacle-detection system utilizing stereo cameras is proposed ...

Hindawi Publishing Corporation2011

Hermetic package for optical MEMS

Peter Ryser, Jacques Jacot, Thomas Maeder, Yannick Sébastien Fournier, Frank Seigneur

This article describes the design and fabrication of a hermetic LTCC package for an optical MEMS chip designed for space applications. The package must ensure electrical and optical connections, mechanical positioning, atmosphere control, and finally low t ...

2009

When manufacturing capability exceeds control capability: The paradox of high precision products, or is it possible to assemble functional products out of components we are unable to measure?

Jacques Jacot, Fabien Bourgeois, Sandra Koelemeijer Chollet

Sorting and mating is a very common practice in high precision manufacturing, as well in the watch industry, biomedical or automotive industry. This strategy helps to increase the assembly yield, but is costly and time-consuming. The question is, when is i ...

Springer, 233 Spring Street, New York, Ny 10013, United States2008

SwisTrack - A Flexible Open Source Tracking Software for Multi-Agent Systems

Alcherio Martinoli, Jacques Jacot, Nicolaus Correll, Thomas Lochmatter, Christopher Cianci, Pierre Roduit

Vision-based tracking is used in nearly all robotic laboratories for monitoring and extracting of agent positions, orientations, and trajectories. However, there is currently no accepted standard software solution available, so many research groups resort ...

IEEE2008

New designs for submillimetric press-fitting

Jacques Jacot, Fabien Bourgeois, Ludovic Charvier

Press-fitting is a very common assembly process used in many fields, especially in the watchmaking industry. It consists of introducing a shaft in a hole (also called receptor) with a certain value of tightening (or interference). However, this process is ...

Springer, 233 Spring Street, New York, Ny 10013, United States2008

A decision making tool for reconfigurable assembly lines EUPASS project

Jacques Jacot, Sandra Koelemeijer Chollet

A decision making tool is proposed to evaluate assembly costs of micro-products (< 1 dm(3)) and to compare different assembly strategies for a given product or product family. The tool takes into account equipment costs as well as running costs, for manual ...

Springer, 233 Spring Street, New York, Ny 10013, United States2008

Hermetic package for optical MEMS

Peter Ryser, Jacques Jacot, Thomas Maeder, Yannick Sébastien Fournier, Frank Seigneur

2008

Laser soldering of piezoelectric actuator with minimal thermal impact

Jacques Jacot, Thomas Maeder, Yannick Sébastien Fournier, Frank Seigneur

Mechanical and electrical connecting of piezoelectric actuator is often done using conductive glue. Its advantage is not to heat the piezoelectric actuator during connection. But there are many disadvantages to gluing; the main one is curing time. Welding ...

2007

Jacques Jacot

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Ultrasonic driving method

Échappement linéaire piézoélectrique

3D Objects Localization Using Fuzzy Approach and Hierarchical Belief Propagation: Application at Level Crossings

Hermetic package for optical MEMS

When manufacturing capability exceeds control capability: The paradox of high precision products, or is it possible to assemble functional products out of components we are unable to measure?

SwisTrack - A Flexible Open Source Tracking Software for Multi-Agent Systems

New designs for submillimetric press-fitting

A decision making tool for reconfigurable assembly lines EUPASS project

Hermetic package for optical MEMS

Laser soldering of piezoelectric actuator with minimal thermal impact

Hermetic package for optical MEMS

Ultrasonic driving method

SwisTrack - A Flexible Open Source Tracking Software for Multi-Agent Systems

Hermetic package for optical MEMS

Échappement linéaire piézoélectrique

3D Objects Localization Using Fuzzy Approach and Hierarchical Belief Propagation: Application at Level Crossings

New designs for submillimetric press-fitting

When manufacturing capability exceeds control capability: The paradox of high precision products, or is it possible to assemble functional products out of components we are unable to measure?

A decision making tool for reconfigurable assembly lines EUPASS project

Laser soldering of piezoelectric actuator with minimal thermal impact