Optimised Chirped Fibre Bragg Gratings for Detonation Velocity Measurements

Autor: Josh Pooley, Ed Price, James W. Ferguson, Morten Ibsen
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Sensors, Vol 19, Iss 15, p 3333 (2019)
Druh dokumentu: article
ISSN: 1424-8220
19153333
DOI: 10.3390/s19153333
Popis: 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 in detonation velocity tests. It is found that the optimal CFBG detonation velocity probe should have a high chirp-rate, a low reflectivity and no apodisation. As a further demonstration of these findings, we measure detonation velocity with a 24 cm optimised CFBG; the longest CFBG test of this kind so far.
Databáze: Directory of Open Access Journals
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