Control of microcantilevers in dynamic force microscopy using time delayed feedback

Kohei Yamasue, Takashi Hikihara

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

It has been recently shown that microcantilever sensors in dynamic force microscopes possibly exhibit chaotic oscillations due to the nonlinear tip-sample interaction force. In this article, we propose elimination of the chaotic oscillations using the time delayed feedback control method, which has an ability to stabilize unstable periodic orbits embedded in chaotic attractors. An extended operating range of the microscopes is numerically estimated by stability analysis of the target periodic oscillation. We also discuss an improved transient response of oscillation, which allows us to accelerate the scanning rate of the microscopes without reducing their force sensitivity.

Original languageEnglish
Article number053703
JournalReview of Scientific Instruments
Volume77
Issue number5
DOIs
Publication statusPublished - 2006 May
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation

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