4D Thermomechanical metamaterials for soft microrobotics

Autor: Qingxiang Ji, Johnny Moughames, Xueyan Chen, Guodong Fang, Juan J. Huaroto, Vincent Laude, Julio Andrés Iglesias Martínez, Gwenn Ulliac, Cédric Clévy, Philippe Lutz, Kanty Rabenorosoa, Valerian Guelpa, Arnaud Spangenberg, Jun Liang, Alexis Mosset, Muamer Kadic

Publikováno v: Communications Materials, Vol 2, Iss 1, Pp 1-6 (2021)

4D metamaterials offer the additional functionality of being responsive to external stimuli. Here, a metamaterial-based soft robot is composed of bilayer plates that can rotate and translate in response to thermal stimuli, allowing controlled motion.

Externí odkaz: https://doaj.org/article/4d60a79d086b4d4d8ac97e4f3a39d5d1

Autocalibration method for scanning electron microscope using affine camera model

Autor: Nadine Le Fort-Piat, Peter Sturm, Valerian Guelpa, Olivier Lehmann, Sounkalo Dembélé, Andrey V. Kudryavtsev, Patrick Rougeot

Publikováno v: Machine Vision and Applications
Machine Vision and Applications, Springer Verlag, 2020, 31 (7), pp.1-15. ⟨10.1007/s00138-020-01109-x⟩
Machine Vision and Applications, 2020, 31 (7), pp.1-15. ⟨10.1007/s00138-020-01109-x⟩

International audience; This paper deals with the task of autocalibration of scanning electron microscope (SEM), which is a technique allowing to compute camera motion and intrinsic parameters. In contrast to classical calibration, which implies the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::def684b76aa56fbd02b115cab20b4b24
https://doi.org/10.1007/s00138-020-01109-x

2D visual micro-position measurement based on intertwined twin-scale patterns

Autor: Valerian Guelpa, Miguel Asmad Vergara, Guillaume J. Laurent, Cédric Clévy, Nadine Le Fort-Piat, Patrick Sandoz

Publikováno v: Sensors and Actuators A: Physical. 248:272-280

Position measurement at nanoscale currently raises issues such as making significant compromise between range and resolution or as the difficulty to measure several directions with a single sensor. This paper presents a novel visual method to measure

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9d738baef2dcdad7f2ccfb0f358d8abd
https://doi.org/10.1016/j.sna.2016.08.002

Accurate 3D-Positioning in a SEM through Robot Calibration

Autor: Valerian Guelpa, Sounkalo Dembélé, Nadine Piat, Andrey V. Kudryavtsev

Publikováno v: 2018 International Conference on Manipulation, Automation and Robotics at Small Scales (MARSS)
International Conference on Manipulation, Automation and Robotics at Small Scales
International Conference on Manipulation, Automation and Robotics at Small Scales, Jul 2018, Nagoya, Japan. ⟨10.1109/MARSS.2018.8481224⟩

International audience; With growing trend of miniaturization, new challenges in microrobotics have appeared. In particular, the complexityof microworld comes from the fact that visual sensors such as Scanning Electron Microscope have a very differen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62284e2201f829b81f1a843586fa35dc
https://hal.archives-ouvertes.fr/hal-02399245

3D-printed vision-based micro-force sensor dedicated to in situ SEM measurements

Autor: Patrick Sandoz, Sam Dehaeck, Youen Vitry, Guillaume J. Laurent, Nadine Le Fort-Piat, Pierre Lambert, Olivier Lehmann, Cédric Clévy, Valerian Guelpa, Jean-Sebastien Prax

Publikováno v: AIM

Working at micro-scale efficiently requires accurate and integrated force feedback implemented with a sensor adapted to the scale. This paper presents a 3D-printed vision-based micro-force sensor intended to be used inside the chamber of a Scanning E

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::15944e828f1b36493813b02120425f1a
https://doi.org/10.1109/aim.2017.8014054