Novel Approach for Optimisation of Fibre Bragg Grating Sensor Network for Efficient Damage Detection in Composite Structures

2013 ◽  
Vol 1 (1) ◽  
pp. 79-87
Author(s):  
GAYAN KAHANDAWA ◽  
JAYANTH EPAARACHCHI ◽  
JOHN CANNING ◽  
K.T. LAU
Keyword(s):  
Damage Detection ◽  
Sensor Network ◽  
Composite Structures ◽  
Bragg Grating ◽  
Fibre Bragg Grating ◽  
Novel Approach ◽  
Fibre Bragg Grating Sensor ◽  
Bragg Grating Sensor

SENSITIVITY MEASUREMENT OF FIBRE BRAGG GRATING SENSOR

2016 ◽  
Vol 78 (3) ◽  
Author(s):  
Suzairi Daud ◽  
Muhammad Safwan Abd Aziz ◽  
Kashif Tufail Chaudhary ◽  
Mahdi Bahadoran ◽  
Jalil Ali
Keyword(s):  
Tunable Laser ◽  
Sensor System ◽  
Laser Source ◽  
Bragg Grating ◽  
Wavelength Shift ◽  
Fibre Bragg Grating ◽  
Sensor Head ◽  
Fibre Bragg Grating Sensor ◽  
Pass Through ◽  
Bragg Grating Sensor

A practical pass-through type fibre Bragg grating (FBG) temperature sensor system have been designed, developed, simulated, and experimentally investigated. The performance of FBG was evaluated in harsh environments exposed under direct sunlight, rain, and wind. The sensor system designed directly focused with convex and hand lens. The temperature of FBG’s sensor head been measured. The broadband laser source was launched into the system using tunable laser source (TLS) and both transmission and reflection spectra of FBG sensor were measured by optical spectrum analyzer (OSA). Results shows that the Bragg wavelength shift,  increased proportionally with the temperature changes. The sensitivity of FBG were recorded at 0.0100 and 0.0132 nm °C-1 for the systems where convex and hand lens applied to the FBG’s sensor head respectively, while the sensitivity of 0.0118 nm °C-1 measured for the system without any focusing element applied.

Monitoring pressure profiles across an airfoil section with a fibre Bragg grating sensor array

2018 ◽  
Author(s):  
John W. Arkwright ◽  
Anthony W. Papageorgiou ◽  
Luke A. Parkinson ◽  
Andrew R. Karas ◽  
Kristy L. Hansen
Keyword(s):  
Sensor Array ◽  
Bragg Grating ◽  
Fibre Bragg Grating ◽  
Airfoil Section ◽  
Pressure Profiles ◽  
Fibre Bragg Grating Sensor ◽  
Bragg Grating Sensor
Sign in / Sign up

Export Citation Format

Share Document