Abstract
An all-metal 3-component optical fiber seismometer was proposed and experimentally demonstrated. The theoretical analysis was given based on the electro-mechanical theory. Calibration results showed that the axis sensitivity was about 41 dB (re: 0 dB=1 rad/g) with a fluctuation ±2 dB in the frequency bandwidth of 5 Hz–400 Hz. A transverse sensitivity of about −40 dB was achieved. The fluctuation of the acceleration sensitivity for the three accelerometers in the seismometer was within ±2.5 dB. The minimum phase demodulation detection accuracy of the phase-generated carrier (PGC) was 10−5 rad/√Hz, and the minimum detectable acceleration was calculated to be 90 ng/√Hz.
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References
P. R. Keul, E. Mastin, J. Blanco, M. Maguérez, T. Bostick, and S. Knudsen, “Using a fiber-optic seismic array for well monitoring,” The Leading Edge, 2005, 24(1): 68–70.
Y. Zhang, S. Li, J. Ning, Z. Yin, and H. Cui, “Seismic wave detection system based on fiber optic sensor,” in Proc. SPIE, vol. 6296, pp. 62961J-1–2961J-8, 2006.
N. Zeng, C. Shi, M. Zhang, L. Wang, Y. Liao, and S. Lai, “A 3-component fiber-optic accelerometer for well logging,” Optics Communications, 2004, 234(1–6): 153–162.
S. Knudsen, G. B. Havsgard, A. Berg, H. Nakstad, and T. Bostick, “Permanently installed high-resolution fiber optic 3C/4D seismic sensor systems for in-well imaging and monitoring applications,” in Sixth Pacific Northwest Fiber Optic Sensor Workshop, pp. 51–55, 2003.
J. M. De Freitas, “Recent developments in seismic seabed oil reservoir monitoring applications using fibre-optic sensing networks,” Measurement Science and Technology, 2011, 22(5): 52001–52030.
T. J. Hofler and S. L. Garrett, “Flexural disk fiber optic hydrophone,” U.S. Patent 4959539, 1990.
G. Chen, X. Zhang, G. Brambilla, and T. Newson, “Theoretical and experimental demonstrations of a microfiber-based flexural disc accelerometer,” Optics Letters, 2011, 36(18): 3669–3671.
G. A. Cranch and P. J. Nash, “High-responsivity fiber-optic flexural disk accelerometers,” Journal of Lightwave Technology, 2000, 18(9): 1233–1243.
S. Vohra, B. Danver, A. Tveten, and A. Dandridge, “Fiber optic interferometric accelerometers,” in AIP Conference Proceedings, pp. 285–293, 1996.
T. Vohra, B. Danver, A. Tveten, and A. Dandridge, “High performance fibre optic accelerometers,” Electronics Letters, 1997, 33(2): 155–157.
Q. Lin, L. Chen, S. Li, and X. Wu, “A high-resolution fiber optic accelerometer based on intracavity phase-generated carrier (PGC) modulation,” Measurement Science and Technology, 2011, 22(1): 15303–15308.
Y. Wang, J. He, L. Feng, F. Li, and Y. Liu, “A DFB fiber laser sensor system using a NI-Compact-RIO-based PGC demodulation scheme,” in International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors, vol. 7381, pp. 73811O-1–73811O-6, 2009.
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Han, J., Zhang, W., Jiang, D. et al. Fiber optic 3-component seismometer. Photonic Sens 4, 102–107 (2014). https://doi.org/10.1007/s13320-014-0173-4
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DOI: https://doi.org/10.1007/s13320-014-0173-4