Cart (Loading....) | Create Account
Close category search window
 

Smooth trajectories for imaging string-like samples in AFM: A preliminary study

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Chang, Peter I. ; Boston Univ., Boston, MA ; Andersson, S.B.

In this paper, we present a high-level feedback control algorithm for rapid imaging in atomic force microscopy (AFM). This algorithm is designed for samples which are string-like, such as DNA and biopolymers. The tip control of the microscope is performed in real-time while probing the unknown sample based on feedback from the tip and a model of the sample. This model is continually updated based on the measurements. To avoid exciting unwanted dynamics in the AFM system, the tip is steered at a constant velocity along a sinusoidal trajectory whose average is the estimate of the sample curve. We discuss the advantages of the algorithm and some of the challenges which must be overcome to make this technique a viable approach to AFM imaging.

Published in:

American Control Conference, 2008

Date of Conference:

11-13 June 2008

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.