From: Raphael Couturier Date: Fri, 21 Oct 2011 14:03:31 +0000 (+0200) Subject: abstract conclu X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/dmems12.git/commitdiff_plain/85ccdc9bbf8d6b30f5737245a16d277a7713908c?ds=sidebyside;hp=961aed44358c71a04ebcb5aace3d3be4cff962f4 abstract conclu --- diff --git a/dmems12.tex b/dmems12.tex index 10db624..c5ee6cf 100644 --- a/dmems12.tex +++ b/dmems12.tex @@ -63,7 +63,15 @@ \begin{abstract} - +Atomic force microscope (AFM) provides high resolution images of surfaces. We +focus our attention on an interferometry method to estimate the cantilevers +deflection. This method was based on the spline method to interpolate the +deflection and the computations were performed on a PC with LabView. In this +paper, we propose a new method based on the least square method and we present +the implementation that we developped on a FPGA. Our method can be pipelined on +a FPGA in order to manipulate image profiles very quickly. Simulations and real +tests we have performed showed us that this implementation is very efficient and +should allow us to control of a cantilevers array in real time. \end{abstract} @@ -761,7 +769,16 @@ could accept new profiles of pixel each 48 cycles, i.e. 480$n$s. \section{Conclusion and perspectives} - +In this paper we have presented a new method to estimate the cantilevers +deflection in an AFM. This method is based on least square methods. We have +studied the quantization of this algorithm and have implemented it on a +FPGA. Our method gives comparable results compared to the initial version based +on splines. Our solution has been be implemented with a pipeline technique. +Consequently, it enables to handle a new profile image very quickly. Currently +we have performed simulations and real tests on a Spartan6 FPGA. + +In future work, we want to couple our algorithm with a high speed camera +and we plan to control the whole AFM system. \bibliographystyle{plain} \bibliography{biblio}