Optimised Chirped Fibre Bragg Gratings for Detonation Velocity Measurements
Autor: | Josh Pooley, Ed Price, James W. Ferguson, Morten Ibsen |
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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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