Name
Title | ||
|---|---|---|
Estimation of the shear force in Transverse Dynamic Force Microscopy using a sliding mode observer |
Abstract | ||
|---|---|---|
This paper concerns the application of a sliding mode observer to the problem of estimation of the shear force affecting the cantilever dynamics of a Transverse Dynamic Force Microscope (TDFM). The oscillated cantilever in proximity to a specimen permits the investigation of the specimen topography at nano-metre precision. The oscillation amplitude, but also in particular the shear forces, are a measure of distance to the specimen, and therefore the estimation of the shear force is of significance when attempting to construct TDFM images at submolecular accuracy. For estimation of the shear forces, an approximate model of the cantilever is derived using the method of lines. Model order reduction and sliding mode techniques are employed to reconstruct the unknown shear force affecting the cantilever dynamics based on only tip position measurements. Simulations are presented to illustrate the proposed scheme, which is to be implemented on the TDFM set up at the Centre for NSQI at Bristol. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/ACC.2013.6580697 | ACC |
Keywords | Field | DocType |
observers,specimen topography,oscillated cantilever,sliding mode techniques,transverse dynamic force microscope,nanometre precision,sliding mode observer,reduced order systems,cantilevers,oscillations,shear force estimation,force control,submolecular accuracy,surface topography,nsqi,tip position measurements,shear forces,transverse dynamic force microscopy,tdfm images,model order reduction,cantilever dynamics,position measurement,variable structure systems,tdfm set up,oscillation amplitude,mathematical model,dynamics,force,microscopy | Boundary value problem,Oscillation,Transverse plane,Model order reduction,Cantilever,Control theory,Control engineering,Shear force,Observer (quantum physics),Force dynamics,Physics | Conference |
ISSN | ISBN | Citations |
0743-1619 | 978-1-4799-0177-7 | 2 |
PageRank | References | Authors |
0.46 | 4 | 9 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Thang Nguyen-Tien | 1 | 7 | 2.31 |
| Said Ghani Khan | 2 | 71 | 6.71 |
| Christopher Edwards | 3 | 4 | 2.20 |
| Guido Herrmann | 4 | 83 | 11.31 |
| Loren Picco | 5 | 2 | 0.46 |
| Robert Harniman | 6 | 2 | 0.46 |
| Stuart C. Burgess | 7 | 9 | 4.93 |
| Massimo Antognozzi | 8 | 3 | 1.28 |
| Mervyn Miles | 9 | 2 | 1.47 |