Non-Contact Creep Measurement Based on Fourier Domain Optical Coherence Tomography

Abstract:

A non-contact Fourier-domain optical coherence creep tomography (OCCT) is developed and employed in real-time non-contact creep measurement. Experiments on thermal deformation were carried out by using the self-developed OCCT to measure a high-temperature structure. In the OCCT system, a high-performance spectrometer, and a thermal light are, respectively, employed as the detector and the light source. Due to the broadband of the spectrometer and light source, the system provided high robust performance with an excellent deformation measurement resolution of sub-millimeter scale. Due to the energy leakage effect of FFT, a spectrum correction technique was employed to enhance the resolution of the OCCT system. From the experimental results, the self-developed OCCT has great potential applications in non-contact real-time creep measurement of high-temperature structures.

• Periodical: Applied Mechanics and Materials (Volumes 488-489)
• Pages: 1156-1159
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.488-489.1156
• Online since: January 2014
• Authors: Dan Yang Chen, Qiu Kun Zhang, Jian Feng Zhong, Shun Cong Zhong, Jin Quan Guo, Tian Xue Yang, Li Gang Yao
• Keywords: Fourier-Domain Optical Coherence Tomography, Non-Contact Creep Measurement, Spectrum Correction Technique

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