WANG Qifu, QIAO Xueguang, JIA Zhenan, et al. Review of signal demodulation methods for fiber Bragg grating sensor[J]. 2006,(3):67-70. DOI: 10.13756/j.gtxyj.2006.03.021.
When the temperature or stress on the Fiber Bragg Grating(FBG) sensor is changed
the Bragg wavelength will shift accordingly. The measurand can be assessed by detecting the shift.Many signal demodulation methods for detecting the shift of the FBG sensor have been proposed.In this paper
several commonly used ones are described
their operating principles and performances reviewed
their typical experimental schematic diagrams given and their merits and demerits analyzed and compared.