Distributed strain measurement system in one-dimensional by means of multipoint FBG sensing

Hao Yin; Jun Zhu; Haiyu Tang; Hui Wang; Zhao Zhang; Tao Shui; Benli Yu

doi:10.1117/12.2037714

27 February 2014 Distributed strain measurement system in one-dimensional by means of multipoint FBG sensing

Hao Yin, Jun Zhu, Haiyu Tang, Hui Wang, Zhao Zhang, Tao Shui, Benli Yu

Proceedings Volume 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 90441C (2014) https://doi.org/10.1117/12.2037714
Event: International Conference on Optical Instruments and Technology (OIT2013), 2013, Beijing, China

Abstract

In this paper, we described a distributed strain measurement scheme in one-dimensional. The sensing information of FBG is demodulated by a CCD spectrometer, the discrete strain is achieved by fitting and processing discrete signal demodulated utilizing labVIEW virtual instrument technology. Then it could be achieved by Using polynomial fitting method to one-dimensional discrete strain distributed detection. Experimentally, measurement was implemented in Cantilever to prove the system performance. The experimental result shows that the system can reflect the strain distribution in one-dimensional and an order strain modal characteristics of cantilever accurately. The detection system can achieve real-time and dynamic measurements, the response time for 2kHz, the response accuracy for 4μ(epsilon).

Citation Download Citation

Hao Yin, Jun Zhu, Haiyu Tang, Hui Wang, Zhao Zhang, Tao Shui, and Benli Yu "Distributed strain measurement system in one-dimensional by means of multipoint FBG sensing", Proc. SPIE 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 90441C (27 February 2014); https://doi.org/10.1117/12.2037714

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