14 lines
1.2 KiB
TeX
14 lines
1.2 KiB
TeX
\textbf{Abstract}
|
|
A new low emittance lattice storage ring is under construction at the ESRF.
|
|
In this new instrument, an upgraded end station for ID31 beamline must allow to position the samples along \emph{complex trajectories with a nanometer precision}.
|
|
In order to reach these requirements, samples have to be mounted on high precision stages, combining a capability of large stroke, spin motion, and active rejection of disturbances.
|
|
However, the precision is limited by thermal expansion and various imperfections
|
|
that are not actively compensated. Our approach is to add a Nano Active Stabilization System (NASS) which is composed of a 6DoF Stewart platform and a 6 DoF metrology system.
|
|
A 3D model of the end station updated with experimental data is developed.
|
|
As the mass of the samples may vary by up to two orders of magnitudes, robust control strategies are required to address such plant uncertainty.
|
|
The proposed control strategy are presented and applied on the developed model by conducting time domain simulations of tomography experiment in presence of instrumentation noise and system uncertainty.
|
|
|
|
%%% Local Variables: ***
|
|
%%% mode:latex ***
|
|
%%% TeX-master: "2018 - Student Day.tex" ***
|
|
%%% End: *** |