Etched fiber optic sensor and its application in monitoring system

2001 ◽  
Author(s):  
Ping Wu
Keyword(s):  
Monitoring System ◽  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Optic Sensor

scholarly journals Landslide monitoring system based on fiber optic sensor and CCD TSL1401CL linear sensor array

2021 ◽  
Vol 1876 (1) ◽  
pp. 012002
Author(s):  
Aldo Novaznursyah Costrada ◽  
Harmadi ◽  
Badrul Mustafa Kemal ◽  
Marzuki
Keyword(s):  
Monitoring System ◽  
Sensor Array ◽  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Landslide Monitoring ◽  
Optic Sensor

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.

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