Multivariable control designs for piezoelectric tubes
Most AFMs use piezoelectric tube nanopositioners for scanning. Fast actuation of piezoelectric tubes are restricted due to the presence of low mechanical resonant modes. These resonances, when excited, set off vibrations that cause loss of precision and repeatability of the scans. Thereby restrictin...
| Main Authors: | , , , |
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| Format: | Proceeding Paper |
| Language: | English |
| Published: |
2011
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/6636/ http://irep.iium.edu.my/6636/1/Multivariable_Control_Designs_for_Piezoelectric_Tubes.pdf |
| _version_ | 1848776702901092352 |
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| author | Bhikkaji, Bharath Yong, Yuen Kuan Mahmood, Iskandar Al-Thani Moheimani, S.O. Reza |
| author_facet | Bhikkaji, Bharath Yong, Yuen Kuan Mahmood, Iskandar Al-Thani Moheimani, S.O. Reza |
| author_sort | Bhikkaji, Bharath |
| building | IIUM Repository |
| collection | Online Access |
| description | Most AFMs use piezoelectric tube nanopositioners for scanning. Fast actuation of piezoelectric tubes are restricted due to the presence of low mechanical resonant modes. These resonances, when excited, set off vibrations that cause loss of precision and repeatability of the scans. Thereby restricting the scanning frequencies to less than 1% of the first resonance frequency. Here, an innovative multivariable control design methodology for damping the resonant modes of the tube is presented. This methodology exploits the symmetry present in transfer-functions relating the input and output, and converts the multivariable control design problem into independent SISO designs. This methodology in conjunction with Integral Resonant control is used for damping the first resonant mode of the tube, and enables scans upto 10% of the first resonant mode. The proposed methodology can be applied to a large class of parallel kinematics nanopositioners used in scanning probe microscopes and probe-based data storage systems. |
| first_indexed | 2025-11-14T14:34:18Z |
| format | Proceeding Paper |
| id | iium-6636 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T14:34:18Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-66362011-11-30T14:52:43Z http://irep.iium.edu.my/6636/ Multivariable control designs for piezoelectric tubes Bhikkaji, Bharath Yong, Yuen Kuan Mahmood, Iskandar Al-Thani Moheimani, S.O. Reza Q Science (General) TJ212 Control engineering Most AFMs use piezoelectric tube nanopositioners for scanning. Fast actuation of piezoelectric tubes are restricted due to the presence of low mechanical resonant modes. These resonances, when excited, set off vibrations that cause loss of precision and repeatability of the scans. Thereby restricting the scanning frequencies to less than 1% of the first resonance frequency. Here, an innovative multivariable control design methodology for damping the resonant modes of the tube is presented. This methodology exploits the symmetry present in transfer-functions relating the input and output, and converts the multivariable control design problem into independent SISO designs. This methodology in conjunction with Integral Resonant control is used for damping the first resonant mode of the tube, and enables scans upto 10% of the first resonant mode. The proposed methodology can be applied to a large class of parallel kinematics nanopositioners used in scanning probe microscopes and probe-based data storage systems. 2011-08-28 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/6636/1/Multivariable_Control_Designs_for_Piezoelectric_Tubes.pdf Bhikkaji, Bharath and Yong, Yuen Kuan and Mahmood, Iskandar Al-Thani and Moheimani, S.O. Reza (2011) Multivariable control designs for piezoelectric tubes. In: The 18th World Congress of the International Federation of Automatic Control (IFAC 2011), 28 August - 2 September 2011, Milano, Italy. http://www.ifac-papersonline.net/Detailed/48145.html |
| spellingShingle | Q Science (General) TJ212 Control engineering Bhikkaji, Bharath Yong, Yuen Kuan Mahmood, Iskandar Al-Thani Moheimani, S.O. Reza Multivariable control designs for piezoelectric tubes |
| title | Multivariable control designs for piezoelectric tubes |
| title_full | Multivariable control designs for piezoelectric tubes |
| title_fullStr | Multivariable control designs for piezoelectric tubes |
| title_full_unstemmed | Multivariable control designs for piezoelectric tubes |
| title_short | Multivariable control designs for piezoelectric tubes |
| title_sort | multivariable control designs for piezoelectric tubes |
| topic | Q Science (General) TJ212 Control engineering |
| url | http://irep.iium.edu.my/6636/ http://irep.iium.edu.my/6636/ http://irep.iium.edu.my/6636/1/Multivariable_Control_Designs_for_Piezoelectric_Tubes.pdf |