Humidity Sensing by Chitosan-Coated Fibre Bragg Gratings (FBG) [PDF]
In this work, we report novel relative humidity sensors realized by functionalising fibre Bragg gratings with chitosan, a moisture-sensitive biopolymer never used before for this kind of fibre optic sensor.
Rosaria D’Amato +3 more
doaj +3 more sources
Etched Polymer Fibre Bragg Gratings and Their Biomedical Sensing Applications [PDF]
Bragg gratings in etched polymer fibres and their unique properties and characteristics are discussed in this paper. Due to the change in material and mechanical properties of the polymer fibre through etching, Bragg gratings inscribed in such fibres ...
Ginu Rajan +3 more
doaj +3 more sources
Strain Measurement in Aluminium Alloy during the Solidification Process Using Embedded Fibre Bragg Gratings [PDF]
In recent years, the observation of the behaviour of components during the production process and over their life cycle is of increasing importance. Structural health monitoring, for example of carbon composites, is state-of-the-art research.
Klaus Weraneck +7 more
doaj +3 more sources
Strain Measurements of Composite Laminates with Embedded Fibre Bragg Gratings: Criticism and Opportunities for Research [PDF]
Embedded optical fibre sensors are considered for structural health monitoring purposes in numerous applications. In fibre reinforced plastics, embedded fibre Bragg gratings are found to be one of the most popular and reliable solutions for strain ...
Joris Degrieck +3 more
doaj +3 more sources
Fatigue Performance of Type I and Type II Fibre Bragg Gratings Fabricated by Femtosecond Laser Inscription through the Coating [PDF]
Strain sensing technology using fibre Bragg grating (FBG) sensors is an attractive capability for aerospace structural health monitoring (SHM) and assessment because they offer resistance to harsh environments, low maintenance, and potential for high ...
Naizhong Zhang +5 more
doaj +2 more sources
Optimised Chirped Fibre Bragg Gratings for Detonation Velocity Measurements [PDF]
Over the last decade, the use of chirped fibre Bragg gratings (CFBGs) in detonation velocity experiments has been steadily increasing. In this paper, we show how CFBG design parameters—chirp-rate, reflectivity and apodisation—affect linearity
Josh Pooley +3 more
doaj +2 more sources
RTM Production Monitoring of the A380 Hinge Arm Droop Nose Mechanism: A Multi-Sensor Approach [PDF]
This research presents a case study of production monitoring on an aerospace composite component: the hinge arm of the droop nose mechanism on the Airbus A380 wing leading edge.
Gabriele Chiesura +7 more
doaj +4 more sources
Gecko-inspired self-adhesive packaging for strain-free temperature sensing based on optical fibre Bragg gratings [PDF]
The large development of fibre Bragg gratings (FBGs) over decades has made this kind of structures one of the most mature optical fibre sensing technologies existing today, demonstrating key features for a very wide range of applications. FBG sensors are
Shuochao Liu +3 more
doaj +2 more sources
A comparative study of chromatic dispersion compensation in 10 Gbps SMF and 40 Gbps OTDM systems using a cascaded Gaussian linear apodized chirped fibre Bragg grating design [PDF]
Optical time domain multiplexed (OTDM) technology helps to respond to the need for increased capacity and demand in internet traffic using optical transmissions.
Isidore Nsengiyumva +2 more
doaj +2 more sources
Fibre Bragg Gratings in Embedded Microstructured Optical Fibres Allow Distinguishing between Symmetric and Anti-Symmetric Lamb Waves in Carbon Fibre Reinforced Composites [PDF]
Conventional contact sensors used for Lamb wave-based ultrasonic inspection, such as piezo-electric transducers, measure omnidirectional strain and do not allow distinguishing between fundamental symmetric and anti-symmetric modes. In this paper, we show
Ben De Pauw +5 more
doaj +2 more sources

