Abstract
A fiber Bragg grating (FBG) vibration interrogation system based on a cascaded long-period fiber grating (CLPG) was designed and demonstrated in this article. The light of broad optical source was reflected by the FBG, and then the reflected light entered the CLPG. The intensity of reflected light of the FBG after being modulated by the CLPG would change, so the static and dynamic signal monitoring of the FBG was realized by detecting the transmission power at the resonant wavelength of the FBG. The interrogation system was calibrated by temperature-measuring experiment firstly, and then the FBG was mounted on the surface of an aluminium specimen to interrogate the vibration signal. The acquired vibration signal and its fast Fourier transform (FFT) by the experiments are analysed and agree with the signal of an eddy current displacement gauge. Experimental results have proved that the interrogation system has a good performance on the measurement of vibration. It is hopeful that the FBG wavelength demodulation based on a CLPG is used to monitor more than 1 KHz dynamic signal.
This work is partially supported by the Natural Science Foundation of Jiangsu Province Grant #BK2008388 to D. Liang, the National Natural Science Foundation Grant #60907038 and the Natural Science Foundation of Jiangsu Province Grant #BK2009370 to J. Zeng.
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References
Sohn, K.-R., Shim, J.-H.: Liquid-level monitoring sensor systems using fiber Bragg grating embedded in cantilever. Sensors and Actuators A 152(2), 248–251 (2009)
Zhan, Y., Wu, H., Yang, Q., Pei, J., Yang, X.: A multi-parameter optical fiber sensor with interrogation and discrimination capabilities. Optics and Lasers in Engineering 47(11), 1317–1321 (2009)
Dai, Y., Liu, Y., Leng, J., Deng, G., Asundi, A.: A novel time-division multiplexing fiber Bragg grating sensor interrogator for structural health monitoring. Optics and Lasers in Engineering 47(10), 1028–1033 (2009)
Ran, Z., Rao, Y.: A FBG sensor system with cascaded LPFGs and Music algorithm for dynamic strain measurement. Sensors and Actuators A 135(2), 415–419 (2009)
Zhao, Y., Liao, Y.: Discrimination methods and demodulation techniques for fiber Bragg grating sensors. Optics and Lasers in Engineering 41(1), 1–18 (2009)
Jackson, D.A., Lobo Ribeiro, A.B., Reekie, L., Archambault, J.L.: Simple multiplexing scheme for a fiber-optic grating sensor network. Optics Letters 18(14), 1192–1194 (1993)
Davis, M.A., Kersey, A.D.: Matched-filter interrogation technique for fibre Bragg grating arrays. Electronics Letters 31(10), 822–823 (1995)
Kersey, A.D., Berkoff, T.A., Morey, W.W.: Multiplexed fiber Bragg grating strain sensor system with a fiber Fabry-Perot wavelength filter. Optics Letters 18(16), 1370–1372 (1995)
Fallon, R.W., Zhang, L., Everall, L.A., Williams, J.A.R., Bennion, I.: All-fibre optical sensing system: Bragg grating sensor interrogated by a long-period grating. Measurement Science and Technology 9(12), 1969–1973 (1998)
Kersey, A.D., Berkoff, T.A., Morey, W.W.: High-resolution fiber-grating based strain sensor with interferometric wavelength-shift detection. Electronics Letters 28(3), 236–2388 (1992)
Yu, Y., Tam, H., Huang, W.: Fiber Bragg grating sensor system with interferometric demodulation technique. Chinese Journal of Sensors and Actuators 21(8), 987–989 (2001)
Liu, Y., Williams, J.A.R., Zhang, L., Bennion, I.: Phase shifted and cascaded long-period fiber gratings. Optics communications 164(1), 27–31 (1999)
Yang, J., Zhao, Y., Peng, B.: Temperature-compensated high pressure FBG sensor with a bulk-modulus and self-demodulation method. Sensors and Actuators A 118(2), 254–258 (2005)
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Zou, H., Liang, D., Zeng, J., Li, K., Zhou, Y. (2011). A Fiber Bragg Grating Vibration Interrogation System Based on a Cascaded Long-Period Fiber Grating. In: Zhang, J. (eds) Applied Informatics and Communication. ICAIC 2011. Communications in Computer and Information Science, vol 227. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-23226-8_28
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DOI: https://doi.org/10.1007/978-3-642-23226-8_28
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