Study on data processing and experiment of Fabry-Perot fiber optic strain gauge

Hongjian Wang; Jianshan Jiang; Yu Lu

doi:10.1117/12.828284

20 May 2009 Study on data processing and experiment of Fabry-Perot fiber optic strain gauge

Hongjian Wang, Jianshan Jiang, Yu Lu

Proceedings Volume 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 728306 (2009) https://doi.org/10.1117/12.828284
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

Basing on Fabry-Perot fiber optic strain gauge integrated with DSP and the accomplished hard system, principle of Fabry-Perot fiber optic strain gauge integrated with DSP was discussed. Data collecting and processing method of real outputting signal were deeply discussed. Discrete gap transform (DGT) is presented based on FFT and used to obtain the gap of Fabry-Perot fiber optic sensor.DGT completes the direct transformation of the signal from wavelength domain to cavity length domain. In addition, the experiments based on equal strength beam system were carried out. Experimental result shows that previous data processing method is effective. The result is primarily in accordance with that of real loading processing, and shows the method developed by this paper is feasible and effective.

Citation Download Citation

Hongjian Wang, Jianshan Jiang, and Yu Lu "Study on data processing and experiment of Fabry-Perot fiber optic strain gauge", Proc. SPIE 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 728306 (20 May 2009); https://doi.org/10.1117/12.828284

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