scholarly journals Concrete Beam Bending Test Monitorization Using a High Strain Fiber Optic Sensor

2012 ◽  
Vol 30 (8) ◽  
pp. 1085-1089 ◽  
Author(s):  
M. Bravo ◽  
J. Saenz ◽  
M. Bravo-Navas ◽  
M. Lopez-Amo
Keyword(s):  
Concrete Beam ◽  
Fiber Optic ◽  
High Strain ◽  
Fiber Optic Sensor ◽  
Bending Test ◽  
Optic Sensor ◽  
Beam Bending

Fiber optic sensors for monitoring a concrete beam high strain bending test

2011 ◽  
Author(s):  
M. Bravo ◽  
J. Sáenz ◽  
M. Bravo-Navas ◽  
M. López-Amo
Keyword(s):  
Concrete Beam ◽  
Fiber Optic ◽  
High Strain ◽  
Fiber Optic Sensors ◽  
Bending Test

scholarly journals Distributed Strain Measurement along a Concrete Beam via Stimulated Brillouin Scattering in Optical Fibers

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Romeo Bernini ◽  
Aldo Minardo ◽  
Stefano Ciaramella ◽  
Vincenzo Minutolo ◽  
Luigi Zeni
Keyword(s):  
Optical Fibers ◽  
Strain Measurement ◽  
Concrete Beam ◽  
Fiber Optic ◽  
Brillouin Scattering ◽  
Fiber Optic Sensor ◽  
Optic Sensor ◽  
Tension And Compression ◽  
Distributed Fiber Optic Sensor ◽  
Term Performance

The structural strain measurement of tension and compression in a 4 m long concrete beam was demonstrated with a distributed fiber-optic sensor portable system based on Brillouin scattering. Strain measurements provided by the fiber-optic sensor permitted to detect the formation of a crack in the beam resulting from the external applied load. The sensor system is valuable for structural monitoring applications, enabling the long-term performance and health of structures to be efficiently monitored.

scholarly journals Development and Testing of a Post-Installable Deepwater Monitoring System Using Fiber-Optic Sensors

2015 ◽  
Author(s):  
Calvin H. Seaman ◽  
David V. Brower ◽  
Suy Q. Le ◽  
Henry H. Tang
Keyword(s):  
Monitoring System ◽  
Fiber Optic ◽  
Flow Line ◽  
Fiber Optic Sensors ◽  
Test Laboratory ◽  
Fiber Optic Sensor ◽  
Bending Test ◽  
Active Monitoring ◽  
Structural Coupling ◽  
Optic Sensor

This paper addresses the design and development of a fiber-optic monitoring system that can be deployed on existing deep water risers and flow lines; and provides a summary of test article fabrication and the subsequent laboratory testing performed at the National Aeronautics and Space Administration-Johnson Space Center (NASA-JSC). A major challenge of a post-installed instrumentation system is to ensure adequate coupling between the instruments and the riser or flow line of interest. This work investigates the sensor coupling for pipelines that are suspended in a water column (from topside platform to seabed) using a fiber-optic sensor clamp and subsea bonding adhesive. The study involved the design, fabrication, and test of several prototype clamps that contained fiber-optic sensors. A mold was produced by NASA using 3-D printing methods that allowed the casting of polyurethane clamp test articles to accommodate 4-inch and 8-inch diameter pipes. The prototype clamps were installed with a subsea adhesive in a “wet” environment and then tested in the NASA Structures Test Laboratory (STL). The tension, compression, and bending test data showed that the prototype sensor clamps achieved good structural coupling, and could provide high quality strain measurement for active monitoring.

Fiber Optic Sensor for Measuring Rotation

2011 ◽  
Vol 14 (4) ◽  
pp. 66-72 ◽  
Author(s):  
S.M. Al-Hilly ◽  
◽  
Z. E. Khaleel ◽  
A.F. Alrubaye ◽  
◽  
...  
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Optic Sensor

scholarly journals Fiber optic sensor based on fluorescence quenching for heavy metal detection

2020 ◽  
Author(s):  
Yadira A. Fuentes-Rubio ◽  
Rene F. Dominguez-Cruz ◽  
Oscar Baldovino-Pantaleon ◽  
Carlos Ruiz-Zamarreno ◽  
Francisco J. Arregui
Keyword(s):  
Heavy Metal ◽  
Fluorescence Quenching ◽  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Heavy Metal Detection ◽  
Optic Sensor ◽  
Metal Detection

scholarly journals Low-pressure and liquid level fiber‐optic sensor based on polymeric Fabry–Perot cavity

2021 ◽  
Vol 53 (5) ◽  
Author(s):  
D. Jauregui-Vazquez ◽  
M. E. Gutierrez-Rivera ◽  
D. F. Garcia-Mina ◽  
J. M. Sierra-Hernandez ◽  
E. Gallegos-Arellano ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Low Pressure ◽  
Fiber Optic Sensor ◽  
Liquid Level ◽  
Optic Sensor ◽  
Fabry Perot
Sign in / Sign up

Export Citation Format

Share Document