Smart structure state monitoring system using OFS array and NN processing

Yaqing Tu; Weihua Liu; Shanglian Huang

doi:10.1117/12.217386

23 August 1995 Smart structure state monitoring system using OFS array and NN processing

Yaqing Tu, Weihua Liu, Shanglian Huang

Proceedings Volume 2566, Advanced Imaging Technologies and Commercial Applications; (1995) https://doi.org/10.1117/12.217386
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

Embedded optical fiber sensing (OFS) array, signal processing neural network (NN), and embedded micro actuators are three key techniques for optical fiber smart structures. On the basis of the former two techniques, a smart structure state monitoring system is described. The microbending OFS array configured with many rows and columns of fibers laid perpendicular to each other, and the NN signal processing based on the outgoing light intensity pattern is suggested. The actual series experiments on smart skins, gypsum members, and reinforced concrete members, in which the OFS array is embedded, are given and analyzed in detail. The experimental results show the effectiveness of the OFS array and NN signal processing method proposed by the authors. The system can monitor inner states of the structures, such as strains or stresses or cracks, and has potential applications in areas of space aeronautics, ship and civil engineering, etc.

Citation Download Citation

Yaqing Tu, Weihua Liu, and Shanglian Huang "Smart structure state monitoring system using OFS array and NN processing", Proc. SPIE 2566, Advanced Imaging Technologies and Commercial Applications, (23 August 1995); https://doi.org/10.1117/12.217386

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