11 November 2014 Strain transfer error analysis of optical fiber sensors with local debonding interface
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Abstract
Structural health monitoring has become more and more popular in application of damage diagnosis and safety assessment. Optical fiber sensors, as one of the most efficient sensing elements, for the superior advantages of long-term stability and durability, good geometrical shape-versatility, corrosion resistance and anti-electromagnetic interference, are widely used in diverse technological fields. Measurement precision of the sensor is thus emphasized and strain transfer analysis put forward to explain the action mechanism and improve the test accuracy. Theoretical derivation on strain transfer error analysis of optical fiber sensor applied to structure with local debonding interface is carried out in this paper. Cases that optical fiber sensors are bonded on the surface of structure and embedded in structure are discussed, respectively, and related error modification functions are provided. The research is meaningful for improving the precision of optical fiber sensors applied to structures with the existing of local debonding interface, which will be ultimately serve for showing true mechanical state of structures.
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Huaping Wang, Zhi Zhou, Wanqiu Liu, "Strain transfer error analysis of optical fiber sensors with local debonding interface", Proc. SPIE 9274, Advanced Sensor Systems and Applications VI, 92740E (11 November 2014); doi: 10.1117/12.2072891; https://doi.org/10.1117/12.2072891
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