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Development of a XYZ scanner for home-made atomic force microscope based on FPAA control
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Tian, Yanling, Cai, Kunhai, Zhang, Dawei, Liu, Xianping, Wang, Fujun and Shirinzadeh, Bijan (2019) Development of a XYZ scanner for home-made atomic force microscope based on FPAA control. Mechanical Systems and Signal Processing, 131 . pp. 222-242. doi:10.1016/j.ymssp.2019.05.057 ISSN 0888-3270.
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WRAP-development-scanner-home-made-atomic-force-microscope-control-Tian-2019.pdf - Accepted Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0. Download (3652Kb) | Preview |
Official URL: http://doi.org/10.1016/j.ymssp.2019.05.057
Abstract
Atomic force microscopy (AFM) is one of the useful tools in the fields of nanoscale measurement and manipulation. High speed scanning is one of the crucial requirements for live cell imaging and soft matter characterization. The scanning speed is limited by the bandwidth of the AFM’s detection and actuation components. Generally, the bandwidth of a traditional scanner is too low to conduct the live cell imaging. This paper presents a simple and integrated compact home-made AFM for high speed imaging. To improve the bandwidth of the scanner, a parallel kinematics mechanism driven by piezoelectric actuators (PZTs) is proposed for the fast positioning in the X, Y and Z directions. The mechanical design optimization, modeling and analysis, and experimental testing have been conducted to validate the performance of the proposed scanner. A number of experimental results showed that the developed scanner has the capability for broad bandwidth with low coupling errors in the actuation directions. A hybrid control strategy including feedforward and feedback loops has been designed to significantly improve the dynamic tracking performance of the scanner and a field programmable analog array (FPAA) system is utilized to implement the control algorithm for excellent and stable tracking capability. Further, a number of high speed measurements have been conducted to verify the performance of the developed AFM.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Journal or Publication Title: | Mechanical Systems and Signal Processing | ||||||||
Publisher: | Academic Press | ||||||||
ISSN: | 0888-3270 | ||||||||
Official Date: | 15 September 2019 | ||||||||
Dates: |
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Volume: | 131 | ||||||||
Page Range: | pp. 222-242 | ||||||||
DOI: | 10.1016/j.ymssp.2019.05.057 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 17 July 2019 | ||||||||
Date of first compliant Open Access: | 4 June 2020 |
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