In situ measurement of rockfill dam settlement using fiber optic gyroscope monitoring system

2021 ◽  
Author(s):  
Cheng Liao ◽  
Weili Luo ◽  
Desuo Cai ◽  
Miao Li
Keyword(s):  
Monitoring System ◽  
Fiber Optic ◽  
In Situ Measurement ◽  
Fiber Optic Gyroscope ◽  
Rockfill Dam

scholarly journals Development and In Situ Application of Deformation Monitoring System for Concrete-Face Rockfill Dam Using Fiber Optic Gyroscope

Sensors ◽  
2019 ◽  
Vol 20 (1) ◽  
pp. 108
Author(s):  
Cheng Liao ◽  
Desuo Cai ◽  
Hongxun Chen ◽  
Weili Luo ◽  
Miao Li
Keyword(s):  
Monitoring System ◽  
Fiber Optic ◽  
Automatic Measurement ◽  
Deformation Monitoring ◽  
Fiber Optic Gyroscope ◽  
Distributed Monitoring ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Concrete Face

Deformation monitoring is of importance to ensure the operation status of concrete-face rockfill dams (CFRD). This paper reported a novel fiber optic gyroscope (FOG) monitoring system for continuously monitoring face slab deformation of CFRD, which consisted of a permanent monitoring pipeline and a sensing vehicle. The monitoring pipeline was made of steel pipes and polyvinyl chloride polymer connectors, which was embedded in a slot of the crushing-type sidewall beneath the concrete face slab of CFRD, forming a permanent monitoring channel. The sensing vehicle was equipped with a high-precision FOG sensor. A low-pass filter was designed to eliminate the vibration noise of the angular velocities of the sensing vehicle during the monitoring process. An in situ test was carried out on the Shuibuya dam, the highest CFRD in the world. The measurements of the FOG monitoring system agreed well with traditional instrument measurements, serving as validation of the system. The FOG monitoring system has the advantages of excellent repeatability, long service life, distributed monitoring, and automatic measurement.

In-situ measurement of Auramine-O adsorption on macroporous adsorption resins at low temperature using fiber-optic sensing

2021 ◽  
Vol 213 ◽  
pp. 240-247
Author(s):  
Tursunjan Aydan ◽  
Jing-Jing Yang ◽  
Turghun Muhammad ◽  
Fei Gao ◽  
Xiao-Xia Yang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Fiber Optic ◽  
In Situ Measurement ◽  
Auramine O ◽  
Macroporous Adsorption Resins ◽  
Fiber Optic Sensing

Fiber-optic-based chemical sensors for in-situ measurement of metals and aromatic organic compounds in seawater and soil systems

1990 ◽  
Author(s):  
Stephen H. Lieberman ◽  
Scott Inman ◽  
Gregory A. Theriault ◽  
Stafford S. Cooper ◽  
Philip G. Malone ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Chemical Sensors ◽  
Fiber Optic ◽  
In Situ Measurement ◽  
Soil Systems

In-situ measurement of the adsorption thermodynamics of rutin on macroporous adsorption resins by fiber-optic sensing

2018 ◽  
Vol 47 (2) ◽  
pp. 170-184 ◽  
Author(s):  
Fei Gao ◽  
Turghun Muhammad ◽  
Mahinur Bakri ◽  
Wen-Wu Yang ◽  
Parezhati Pataer ◽  
...  
Keyword(s):  
Fiber Optic ◽  
In Situ Measurement ◽  
Adsorption Thermodynamics ◽  
Macroporous Adsorption Resins ◽  
Fiber Optic Sensing

scholarly journals In-situ measurement of cutting edge temperature and its effect on tool wear in turning by a near-infrared fiber-optic two-color pyrometer

Procedia CIRP ◽  
2021 ◽  
Vol 101 ◽  
pp. 89-92
Author(s):  
Jinghui Han ◽  
Xianhua Tan ◽  
Tianxiang Li ◽  
Zirong Tang ◽  
Guanglan Liao ◽  
...  
Keyword(s):  
Tool Wear ◽  
Near Infrared ◽  
Fiber Optic ◽  
Cutting Edge ◽  
In Situ Measurement ◽  
Edge Temperature ◽  
Color Pyrometer

In-situ measurement of thermoset resin degree of cure using embedded fiber optic

1999 ◽  
Author(s):  
Giovanni Breglio ◽  
Andrea Cusano ◽  
Antonello Cutolo ◽  
Antonio M. Calabro ◽  
Stefania Cantoni ◽  
...  
Keyword(s):  
Fiber Optic ◽  
In Situ Measurement ◽  
Degree Of Cure ◽  
Thermoset Resin

In situ measurement of cutting edge temperature in turning using a near-infrared fiber-optic two-color pyrometer

Measurement ◽  
2020 ◽  
Vol 156 ◽  
pp. 107595 ◽  
Author(s):  
Jinghui Han ◽  
Kaiwei Cao ◽  
Lian Xiao ◽  
Xianhua Tan ◽  
Tianxiang Li ◽  
...  
Keyword(s):  
Near Infrared ◽  
Fiber Optic ◽  
Cutting Edge ◽  
In Situ Measurement ◽  
Edge Temperature ◽  
Color Pyrometer
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