Control-observer technique for surface imaging with an experimental platform of Scanning-Tunneling-Microscope type

Abstract : This paper proposes a control strategy based on synthesis of robust design techniques with state observer tools, handling nonlinearities in the driving piezoactuators, as well as in the tunneling current for a home-made Scanning-Tunneling- Microscope-like device (STM), allowing to estimate the surface of nano samples. As in standard STM operation, a tip is driven at a fixed (subnanometric) distance above the sample which isscanned. The control approach is illustrated with an example of experimental surface reconstruction, and a comparison with results provided by a commercial STM.
Type de document :
Communication dans un congrès
American Control Conference (ACC 2018), Jun 2018, Milwaukee, United States
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https://hal.archives-ouvertes.fr/hal-01833278
Contributeur : Andrei Popescu <>
Soumis le : lundi 9 juillet 2018 - 15:07:09
Dernière modification le : mercredi 25 juillet 2018 - 16:40:55

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  • HAL Id : hal-01833278, version 1

Citation

Andrei Popescu, Gildas Besancon, Alina Voda, Skandar Basrour. Control-observer technique for surface imaging with an experimental platform of Scanning-Tunneling-Microscope type. American Control Conference (ACC 2018), Jun 2018, Milwaukee, United States. 〈hal-01833278〉

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