High-speed full-spectrum interrogation of fiber Bragg gratings for composite impact sensing

2010 ◽  
Author(s):  
S. Chadderdon ◽  
T. Vella ◽  
R. Selfridge ◽  
S. Schultz ◽  
S. Webb ◽  
...  
Keyword(s):  
High Speed ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Full Spectrum

High-speed full-spectrum fiber Bragg gratings interrogator system and testing

2011 ◽  
Author(s):  
S. Chadderdon ◽  
R. Selfridge ◽  
S. Schultz ◽  
S. Webb ◽  
C. Park ◽  
...  
Keyword(s):  
High Speed ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Full Spectrum

scholarly journals High Speed, Localized Multi-Point Strain Measurements on a Containment Vessel at 1.7 MHz Using Swept-Wavelength Laser-Interrogated Fiber Bragg Gratings

Sensors ◽  
2020 ◽  
Vol 20 (20) ◽  
pp. 5935
Author(s):  
Steve Gilbertson ◽  
Mark Pickrell ◽  
Dario Castano ◽  
Gary Salazar ◽  
Tom Beery ◽  
...  
Keyword(s):  
Strain Measurement ◽  
High Speed ◽  
High Explosive ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Laser Source ◽  
Global Changes ◽  
Element Analysis ◽  
All Optical ◽  
Explosive Detonation

Dynamic elastic strain in ~1.8 and 1.0 m diameter containment vessels containing a high explosive detonation was measured using an array of fiber Bragg gratings. The all-optical method, called real-time localized strain measurement, recorded the strain for 10 ms after detonation with additional measurements being sequentially made at a rate of 1.7 MHz. A swept wavelength laser source provided the repetition rate necessary for such high-speed measurements while also providing enough signal strength and bandwidth to simultaneously measure 8 or more unique points on the vessel’s surface. The data presented here arethen compared with additional diagnostics consisting of a fast spectral interferometer and an optical backscatter reflectometer to show a comparison between the local and global changes in the vessel strain, both dynamically and statically to further characterize the performance of the localized strain measurement. The results are also compared with electrical resistive strain gauges and finite element analysis simulations.

scholarly journals Wheel Flat Detection in High-Speed Railway Systems Using Fiber Bragg Gratings

2013 ◽  
Vol 13 (12) ◽  
pp. 4808-4816 ◽  
Author(s):  
Massimo Leonardo Filograno ◽  
Pedro Corredera ◽  
Miguel Rodriguez-Plaza ◽  
Alvaro Andres-Alguacil ◽  
Miguel Gonzalez-Herraez
Keyword(s):  
High Speed ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
High Speed Railway ◽  
Railway Systems ◽  
Wheel Flat

Full-spectrum interrogation of fiber Bragg gratings at 100 kHz for detection of impact loading

2010 ◽  
Vol 21 (9) ◽  
pp. 094009 ◽  
Author(s):  
T Vella ◽  
S Chadderdon ◽  
R Selfridge ◽  
S Schultz ◽  
S Webb ◽  
...  
Keyword(s):  
Impact Loading ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Full Spectrum

Simulation of a high-speed superimposed fiber Bragg gratings interrogation system

2015 ◽  
Vol 54 (25) ◽  
pp. 7734
Author(s):  
Youchun Ma ◽  
James K. Mills ◽  
Jijun Xiong ◽  
Wendong Zhang ◽  
Qiuling Tan
Keyword(s):  
High Speed ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings

Edge-filter technique and dominant frequency analysis for high-speed railway monitoring with fiber Bragg gratings

2016 ◽  
Vol 25 (7) ◽  
pp. 075029 ◽  
Author(s):  
Georges Kouroussis ◽  
Damien Kinet ◽  
Edgar Mendoza ◽  
Julien Dupuy ◽  
Véronique Moeyaert ◽  
...  
Keyword(s):  
Frequency Analysis ◽  
High Speed ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Dominant Frequency ◽  
High Speed Railway ◽  
Filter Technique ◽  
Edge Filter ◽  
Dominant Frequency Analysis
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