Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Lufan Zou"'
Autor:
Lufan Zou, Omur Sezerman
Publikováno v:
Day 1 Tue, April 26, 2022.
Pipelines provide one of the safest and most reliable means for transportation of oil and gas. Due to the severity of the economic and environmental impacts associated with leakages, the industry is constantly seeking more efficient and reliable moni
Autor:
Lufan Zou, Omur Sezerman
Publikováno v:
26th International Conference on Optical Fiber Sensors.
The strain coefficient dependence on temperature and the temperature coefficient dependence on strain have been proven for the first time. With these coefficients from SMF-28e and AOC fiber we have demonstrated that a strain accuracy of 6µe and temp
Autor:
Ravet, Fabien1, Lufan Zou1, Xiaoyi Bao1 xbao@uottawa.ca, Ozbakkaloglu, Togay2, Saatcioglu, Murat3, Zhou, Joe4
Publikováno v:
Canadian Journal of Civil Engineering. Mar2007, Vol. 34 Issue 3, p291-297. 7p. 4 Color Photographs, 5 Diagrams, 8 Graphs.
Publikováno v:
Asia Pacific Optical Sensors Conference.
The potential of advanced commercial fiber optical Brillouin Distributed Strain and Temperature Sensor (DSTS) systems for safety monitoring of geo-technical structures such as railroad embankments, tunnel construction, and landslides has been demonst
Publikováno v:
SICE Journal of Control, Measurement, and System Integration. 3:279-284
A distributed sensor system is highly desirable for detecting, locating, and monitoring fine cracks at unknown locations in advanced ceramics. This paper presents a distributed high-resolution fiber optic sensor based on the Brillouin scattering prin
Publikováno v:
Canadian Journal of Civil Engineering. 34:291-297
The distributed Brillouin sensor (DBS) was used to monitor the structural changes in a steel pipe and a composite column subjected to heavy loads. The column was made of concrete reinforced with fibre-reinforced-polymer (FRP) rods and sheets. The tes
Publikováno v:
Optical Fiber Technology. 12:305-311
We conducted a strain characterization experiment to monitor steel pipe and column buckling for the first time using a distributed Brillouin sensor system. Two specimens (steel pipe and column) were prepared by locally thinning the inner wall to init
Publikováno v:
Smart Materials and Structures. 14:S8-S11
Temperature sensing experiments have been carried out on a photonic crystal fiber (PCF) using a coherent pump–probe technique which was operated in the Brillouin loss mode in the temperature range from 0 to 71 °C at 1320 nm. One main peak and four
Autor:
Lufan Zou, Omur Sezerman
Publikováno v:
SPIE Proceedings.
We present 100-μm crack detection and 100-km distributed strain and temperature sensing by fiber-optic distributed strain and temperature sensor (DSTS) based on coherent interaction of probe-pump. The DSTS products have been employed to detect crack
Publikováno v:
SPIE Proceedings.
Distributed Brillouin scattering sensor system was employed to measure the hoop strain in an internally pressurized steel pipe with wall thinning due to erosion. The difference of Brillouin frequency shift from regions that have different degree of w