On amplitude estimation for high-speed atomic force microscopy

Title: On amplitude estimation for high-speed atomic force microscopy
Creator: Ragazzon, Michael R. P.; Gravdahl, J. Tommy; Fleming, Andrew J.
Relation: 2016 American Control Conference (ACC 2016). Proceedings of the 2016 American Control Conference (ACC 2016) (Boston, MA 06-08 July, 2016) p. 2635-2642
Publisher Link: http://dx.doi.org/10.1109/ACC.2016.7525314
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Resource Type: conference paper
Date: 2016
Description: Amplitude estimation or demodulation plays a vital part in the control loop of dynamic mode high-speed atomic force microscopy (AFM). The closed-loop bandwidth will be limited by the convergence speed of the estimator. Recent developments have introduced new ways of demodulating the measured deflection signal. This article reviews and compares present methods for AFM amplitude demodulation and introduces a new Lyapunov based estimator. The performance of the techniques are discussed in terms of bandwidth, measurement noise, convergence time, unwanted harmonics, and complexity.
Subject: Lyapunov methods; amplitude estimation; atomic force microscopy; closed loop systems
Identifier: http://hdl.handle.net/1959.13/1325954
Identifier: uon:25340
Identifier: ISBN:9781467386821
Identifier: ISSN:2378-5861
Language: eng
Reviewed

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