Automated multichannel broadband spectrum analysis of fibre-optic grating sensors

In this paper, we report methods for spectrum analysis and data processing algorithms. An automated multi–channel spectrum measurement system is introduced with controlled fibre–optic signal switching and spectrum analysis with linear CCD photodiode array, diffraction grating and precise stepper motor. The designed system demands advanced measurement and data processing techniques. This paper reports the implemented methods for automated multi–channel measurements, accuracy improvement, noise cancellation techniques and fibre–optic grating sensor measurements.

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