Pink noise and spectral distortions affect the demodulation accuracies of fiber Bragg gratings (FBGs). A noise reduction algorithm with Savitzky-Golay filtering on each intrinsic mode
In order to improve the demodulation accuracy of the tunable F-P filter, the Hilbert transform is introduced into the Gauss fit algorithm to solve the problem of sidelobe or peak distortion
1. Introduction Very early in the development of fiber grating sensor systems it was realized that a high speed fiber grating sensor system could be realized by placing an optical filter that might be a fiber
The forming process of carbon-fiber-reinforced thermoplastics with embedded PSFBGs was comprehensively investigated to elucidate the underlying causes of spectral shift and birefringence.
Here, we fulfill this aim by introducing a comprehensive model with asymmetrical distortion, multi-peaks distortion, interferometric noise, background noise, and random noise. Using
We have proposed a novel integrated optics fiber sensor for curvature and temperature measurement based on ring-core fiber (RCF) Bragg grating and Mac
Fiber Bragg gratings (FBGs) are widely used as sensors for temperature, strain, and vibration measurement. However, current FBG demodulation methods face issues with stability, size,
Fibre Bragg gratings are one of the most popular sensors with a huge number of applications. Their most important advantage is signal modulation consisting in shifting the spectrum
A demodulation algorithm is vital for a fiber Bragg grating (FBG) sensing system. In this paper, a novel demodulation algorithm based on the variable-step-size method and cross-correlation algorithm is
To tackle this problem, we utilize the fully convolutional time-domain audio separation network (Conv-TasNet) model to produce a distinct spectral signal, which is then demodulated using
Spectral distortions are complex and unpredictable in fiber Bragg grating (FBG) sensing applications. An inappropriate choice of FBG demodulation algorithm will lead to unacceptable results in practice.
Abstract The creation of fiber optic sensors aimed at attaining heightened sensitivity in detecting temperature and gas pressure, utilizing the principle of the vernier effect. Additionally, femtosecond
The latter, based on fiber-Bragg gratings (FBGs), are of particular interest for monitoring dynamic mechanical and thermal strains because of the comparative
A novel approach to fibre Bragg grating spectra processing is proposed. The method is based on the use of nonlinear filtration and raising the
They fully utilize the full spectral information of FBG to capture the complex relationship between input features and output, simultaneously achieving distortion spectrum recognition and
Optical fiber sensors based on surface plasmon resonance (SPR) are powerful tools for biosensing, yet their performance is often hindered by thermal and mechanical instability. This work
Using numerical simulations, we evaluate the performance of eight most typical demodulation algorithms with this model. We show that different algorithms should be used within
Consequently, several fiber-optic anemometers with distinct structures or mechanisms have been proposed. Self-heating fiber-optic anemometers based on hot-wire anemometry (HWA)
This work presents the design, fabrication, and characterization of an integrated optofluidic platform that overcomes these environmental limitations. A tilted fiber Bragg grating (TFBG) with an
Compared with traditional long-period fiber gratings (LPFGs), the proposed SC-LPFG-based liquid level sensor realizes liquid level-temperature decoupling, with a wider measurement range and enhanced
ABSTRACT The aim of this article is to introduce an innovative algorithm for the calculation of the shift of the maximum reflectivity wavelength of
This paper presents a new method of demodulating the spectrum of fiber Bragg grating (FBG) based sensors by employing deep convolutional neural networks (DCNN).
The results reveal leading trends in the use of techniques like the use of fiber Bragg gratings (FBG) and distributed sensing in high-accuracy
Index Terms—Fiber Bragg grating (FBG), FBG array, fiber-optic sensor, high reliability, high strength, temperature sensing.
Its reflection spectrum exhibits a peak at the so-called Bragg wavelength, where the fiber shows the maximum reflectivity. When a FBG
Fiber Bragg grating (FBG) sensors have emerged as advanced tools for monitoring a wide range of physical parameters in various fields, including
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