Full article: Fiber Bragg grating demodulation through
Since the Bragg wavelength is a function of the fiber equivalent refractive index and the grating period, any physical parameter able to influence
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Abstract: The conventional fiber Bragg grating (FBG) accelerometer demodulation often suffers from high-environmental sensitivity, complexity, and cost. To address these issues, this article presents
Accurate online reconstruction algorithm for UAV propeller blade
Embedded Fiber Bragg Grating (FBG) sensors provide a sensitive means of structural investigation, but existing techniques are unable to reconstruct complex deformations on arbitrarily shaped blade
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Keywords: fiber Bragg grating, demodulation algorithm, variable step size, correlation coeficient A demodulation algorithm is vital for a fiber Bragg grating (FBG) sensing system. In this paper, a novel
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In this article, a tracking-based high-speed demodulation method for FBG sensing systems based on the wavelength-tunable laser is proposed. The wavelength-tunable laser only
Demodulation Algorithm for Fiber Bragg Grating Sensors
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High-sensitivity ultrasound detection based on phase-shifted fiber
An all fiber ultrasound sensing system with cascaded phase-shifted fiber Bragg grating (PS-FBG) cascaded with a normal FBG to guarantee both the high sensitivity and large dynamic range of the
A high SNR system for intensity demodulation of fiber Bragg grating
Thus, a novel intensity demodulation system based on the phase-locked loop is proposed in this study. Theoretical analysis and experiments show that the system has a high signal-to-noise
Investigation of the dynamic demodulation ability of a tilted fiber
We demonstrate the dynamic demodulation ability of the TFBG by measuring the transient wave propagation on a square aluminum solid with an out-of-plane point-wise fiber Bragg grating
Optical Phase/Frequency Demodulation using Polarization
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Demodulation System for Fiber Optic Bragg Grating Dynamic
This paper describes an interferometric demodulator that was developed and optimized for this particular application. The signal to noise ratio was maximized through temporal coherence analysis. The
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An optimized strain demodulation method based on dynamic double matched fiber Bragg grating (FBG) filtering driven by a piezoelectric transducer (PZT) is proposed and experimentally
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In this work, we describe a fibre Bragg grating (FBG) sensing system for static and dynamic strain measurements. Low cost and simple grating-based demodulation technique has been
Fiber X300/X500 series Fiber Bragg Grating Demodulator Module
It uses a scanning narrow-band semiconductor laser as light source to perform high-resolution fiber grating demodulation in the range of 40nm. It is designed for static FBG measurement and can be
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Design of Fiber Grating Demodulation System Based on Tunable
Aiming at dynamic torque measurement system, fiber Bragg grating sensing principle is used to measure rotating shaft torque, and a fiber Bragg grating demodulation system based on