Implementation of nondestructive Young’s modulus measurement by miniature optical sensors

Xingwei Wang; Juncheng Xu; Bing Yu; Kristie L. Cooper; Anbo Wang

doi:10.1117/12.631037

5 November 2005 Implementation of nondestructive Young's modulus measurement by miniature optical sensors

Xingwei Wang, Juncheng Xu, Bing Yu, Kristie L. Cooper, Anbo Wang

Proceedings Volume 5998, Sensors for Harsh Environments II; 599805 (2005) https://doi.org/10.1117/12.631037
Event: Optics East 2005, 2005, Boston, MA, United States

Abstract

Accurate real time nondestructive modulus measurement is one of the principal requirements in service life monitoring of smart structures. However, most current measurement methods, such as tension and/or compression testing are inappropriate for such applications. For one thing, the force load may damage the casting. For another, the test process is not trivial and inconvenient for real-time modulus monitoring. This paper describes an acoustic-based measurement mechanism using two separated miniature optical sensors. The sensor features miniature size (<500μm), high resolution and accuracy, high temperature and pressure survivability, electromagnetic interference immunity (EMI), electrically non- conductivity, and chemical erosion inertness. This technique offers future potential for real-time measurement for in-service monitoring, particularly in applications involving such environments as high temperatures or high pressure.

Citation Download Citation

Xingwei Wang, Juncheng Xu, Bing Yu, Kristie L. Cooper, and Anbo Wang "Implementation of nondestructive Young's modulus measurement by miniature optical sensors", Proc. SPIE 5998, Sensors for Harsh Environments II, 599805 (5 November 2005); https://doi.org/10.1117/12.631037

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