Long term stability of spectral measurement systems for fiber bragg grating sensors
Abstract
This paper addresses the metrological stability of spectral measurements performed with a smart FBG sensing instrument. With a sophisticated tracking system based on a real-time drift compensation, we obtained, during 16 days, an unrivalled measurement stability, as low as: 0.0074 fm/h with a standard deviation: 0.032 pm. This level of performance opens the way, not only to high quality metrology, but also to long-term structure monitoring.
Keywords
Convergence of numerical methods
Fiber Bragg Grating
Fiber optic sensors
Measurements
Optical resolving power
Fiber Bragg Grating Sensors
Drift
Units of measurement
Stability
Long term stability
Long-term structures
Optical fiber sensor
Spectral measurement
Spectral measurement system
Standard deviation
instrumentation
Distributed and Quasi-distributed sensing
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