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
FBGs can be fabricated by exposure to a spatial pattern of ultraviolet light in the region of 244–248 nm into a segment of Ge-doped single-mode fiber. Thus, a periodic modulation of the core
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
Fiber Bragg grating (FBG) sensors are one of the most exciting developments in the fields of fiber-optic sensors in recent years. One of the problems in using grating sensors is the
ABSTRACT The aim of this article is to introduce an innovative algorithm for the calculation of the shift of the maximum reflectivity wavelength of
We propose and experimentally demonstrate a simple, passive, and self-referencing wavelength shift detection scheme for use in fiber Bragg grating sensing systems. The demodulation system is based
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
A super high-speed fiber grating demodulator capable of simultaneously demodulating four grating channels is designed. The demodulator uses Fourier domain mode locked laser which consists of a
FBG (Fiber Bragg Grating Intelligent Demodulator) Product overview The XH-FBG fiber grating temperature sensing product is a sensing detection system
This review paper aims to give a general understanding of the basic principles of FBG sensors, advances in sensing and data processing techniques,
A simple all optical fibre wavelength shift detection scheme, for use with fibre Bragg grating sensing systems, is described. The system is based on the use of a wavelength division coupler
A novel scheme for demodulating frequency-modulated optical signals is proposed. It uses polarization-maintaining fiber Bragg grating (PM-FBG) as a frequency discriminator. The basic principle and
In this paper, a photoelectric conditioning circuit for fiber Bragg grating demodulation is designed. The experimental results show that this method can accurately demodulate fiber Bragg
Here, we present a simple, compact, and robust technique featuring high linearity over a wide bandwidth and low background noise.
A novel approach to fibre Bragg grating spectra processing is proposed. The method is based on the use of nonlinear filtration and raising the
Our numerical program uses the transfer matrix method and the Nelder–Mead simplex algorithm. It can be easily implemented in the case of twin Bragg gratings. A twin grating is
The fiber Bragg grating demodulator based on spectral imaging method has a small volume, high integration degree, and can be used to measure static and dynamic strains. It has outstanding
Abstract The demodulation system is a very critical component of the seismic exploration, which determines the response speed and accuracy of data acquisition of the detection system.
Various techniques have been demonstrated for optical PM/FM demodulation. They can be generally categorized as either coherent-demodulation techniques (CDT) or incoherent-demodulation
Optical Phase/Frequency Demodulation using Polarization-Maintaining Fiber Bragg Gratings Dipen Barot, Member, Optica, Rui Zhou, Student Member, Optica, and Lingze Duan, Senior Member, IEEE,
Through a method of matching grating demodulation, a novel system which can be applicable to optical fiber grating sensor demodulation is designed.
Fiber Bragg grating sensing is one of the most attractive researches in the field of optical fiber sensing. It has made considerable progress due to its advantages in high multiplexing, high
The vibration measurement of spacecraft structures in space applications has raised higher requirements for the demodulation frequency of the fiber Bragg grating (FBG) demodulator. In
Our technique exploits the reflection characteristics of fiber Bragg gratings written in polarization-maintaining fibers to create a frequency
The method we use exhibits superior demodulation performance compared to the TMM , ANN , and ADPN methods. The ADPNet method does not mention whether
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
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