Distributed vibration measurement based on a coherent multi-slope-assisted BOTDA with a large dynamic range
We propose a novel technique to enhance the dynamic range of a coherent slope-assisted
Brillouin optical time domain analysis. A multi-tone probe and a reference wave are …
Brillouin optical time domain analysis. A multi-tone probe and a reference wave are …
Structural crack detection using DPP-BOTDA and crack-induced features of the Brillouin gain spectrum
Structural damage generally initiates in the form of structural cracks. Thus, developing
efficient crack detection techniques is of great importance for the structural health …
efficient crack detection techniques is of great importance for the structural health …
Differential Brillouin gain for improving the temperature accuracy and spatial resolution in a long-distance distributed fiber sensor
We demonstrate a 12 km differential pulse-width pair Brillouin optical time-domain analysis
(DPP-BOTDA) using 40 ns and 50 ns pulses with DC-coupled detection. A spatial resolution …
(DPP-BOTDA) using 40 ns and 50 ns pulses with DC-coupled detection. A spatial resolution …
A Cross‐Diagnosis Method for Determining the Structural Condition of a Long‐Span Suspension Bridge Based on the Spatial Windows of Distributed Strain Data
Q Xu, Z Zhou, Y Liu - Structural Control and Health Monitoring, 2023 - Wiley Online Library
Using structural health monitoring (SHM) techniques, Brillouin optical time‐domain analysis
(BOTDA) sensors can be mounted along the main box girder entire length of a long‐span …
(BOTDA) sensors can be mounted along the main box girder entire length of a long‐span …
Structural monitoring by use of a Brillouin distributed sensor
M DeMerchant, A Brown, X Bao, T Bremner - Applied optics, 1999 - opg.optica.org
The testing of a fiber-optic distributed-strain sensor attached to a simple structural member is
reported. A Brillouin scattering-based sensor system was used to measure both tensile and …
reported. A Brillouin scattering-based sensor system was used to measure both tensile and …
Recent progress in optical fiber sensors based on Brillouin scattering at university of Ottawa
X Bao, L Chen - Photonic Sensors, 2011 - Springer
The distributed sensor is proven to be a powerful tool for civil structural and material process
monitoring. Brillouin scattering in fiber can be used as point sensors or distributed sensors …
monitoring. Brillouin scattering in fiber can be used as point sensors or distributed sensors …
Recent progress in monomode fibre-optic sensors
DA Jackson - Measurement Science and Technology, 1994 - iopscience.iop.org
Recent progress in monomode fibre-optic sensors Page 1 Measurement Science and
Technology Recent progress in monomode fibre-optic sensors To cite this article: DA …
Technology Recent progress in monomode fibre-optic sensors To cite this article: DA …
Reference-free dynamic distributed monitoring of damage in multispan bridges
The work presented pertains to the development and application of a damage detection
method in bridges by use of distributed fiber-optic sensors. It utilizes the dynamic mode of …
method in bridges by use of distributed fiber-optic sensors. It utilizes the dynamic mode of …
1-cm-spatial-resolution Brillouin optical time-domain analysis based on bright pulse Brillouin gain and complementary code
We studied the impact of optical pulse coding techniques on Brillouin optical time-domain
analysis (BOTDA) systems experimentally. The results show that complementary-coding …
analysis (BOTDA) systems experimentally. The results show that complementary-coding …
Limits of BOTDA range extension techniques
X Angulo-Vinuesa, A Dominguez-Lopez… - IEEE Sensors …, 2015 - ieeexplore.ieee.org
Brillouin-based temperature and strain sensors have attracted great attention of both the
academic and industrial sectors in the past few decades due to their ability to perform …
academic and industrial sectors in the past few decades due to their ability to perform …