Arbitrary strain and temperature distribution sensing using two FBG pairs

Hsu Chih Cheng, Yu-Lung Lo

研究成果: Conference contribution

摘要

We use two pairs of FBGs to perform simultaneous strain and temperature field measurements. The first pair of FBGs, comprising one uniform FBG and one chirped FBG, measures the strain and temperature fields, while the second pair of FBGs, also comprising one uniform FBG and one chirped FBG, measures the temperature field only. A genetic algorithm is applied to reconstruct the arbitrary strain and temperature distribution profiles simultaneously from the measured reflection intensity spectra of the four FBGs. Also, we include the reflection power attenuation factors into the genetic algorithm and make this approach more useful in practical. Several strain distributions along the fiber Bragg gratings are reconstructed numerically. The proposed measurement method is suitable for many smart structure-monitoring applications.

原文English
主出版物標題Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
頁面1685-1694
頁數10
出版狀態Published - 2007 十一月 19
事件SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007 - Springfield, MA, United States
持續時間: 2007 六月 32007 六月 6

出版系列

名字Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
3

Other

OtherSEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
國家United States
城市Springfield, MA
期間07-06-0307-06-06

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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  • 引用此

    Cheng, H. C., & Lo, Y-L. (2007). Arbitrary strain and temperature distribution sensing using two FBG pairs. 於 Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007 (頁 1685-1694). (Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007; 卷 3).