Abstract
A model-based robust control approach is proposed that significantly improves imaging bandwidth for the dynamic mode atomic force microscopy. A model for cantilever oscillation amplitude and phase dynamics is derived and used for the control design. In particular, the control design is based on a linearized model and robust H∞ control theory. This design yields a significant improvement when compared to the conventional proportional-integral designs and verified by experiments.
| Original language | English |
|---|---|
| Article number | 043703 |
| Journal | Review of Scientific Instruments |
| Volume | 86 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1 Apr 2015 |