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http://dx.doi.org/10.5050/KSNVN.2004.14.8.726

On-line Phase Tracking of Patch Type EFPI Sensor and Fuzzy Logic Vibration Control  

Chang, Young-Hwan (현대-기아 연구개발본부)
Kim, Do-Hyung (한국항공우주연구원)
Lee, In (KAIST 항공우주공학전공)
Han, Jae-Hung (KAIST 항공우주공학전공)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.14, no.8, 2004 , pp. 726-733 More about this Journal
Abstract
On-line phase tracking of an extrinsic Fabry-Perot interferometer (EFPI) and experimental vibration control of a composite beam with a sensing-patch are investigated. We propose a sensing-patch for the compensation of the interferometric non-linearity. In this paper. a sensing-patch that comprises an EFPI and a piezo ceramic(PZT) is fabricated and the characteristics of the sensing-patch are experimentally investigated. A simple and practical logic is applied for the real-time tracking of optical phase of an interferometer Experimental results show that the proposed sensing-patch does not have the non-linear behavior of conventional EFPI and hysteresis of piezoelectric material. Moreover, it has good strain resolution and wide dynamic sensing range. Finally, the vibration control with the developed sensing-patch has been performed using Fuzzy logic controller, and the possibility of sensing-patch as a sensoriactuator is considered.
Keywords
Patch Type EFPI; On-line Phase Tracking; Fuzzy Logic;
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Times Cited By KSCI : 1  (Citation Analysis)
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