Detonation Velocity Measurements Using Rare-Earth Doped Fibres

Autor:	Josh Pooley, Ed Price, James W. Ferguson, Morten Ibsen
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	fibre sensing rare-earth fibres detonation velocity sensing Chemical technology TP1-1185
Zdroj:	Sensors, Vol 19, Iss 7, p 1697 (2019)
Druh dokumentu:	article
ISSN:	1424-8220
DOI:	10.3390/s19071697
Popis:	In this paper, a simple detonation velocity measurement scheme is presented, which exploits the length-dependent amplified spontaneous emission (ASE) power emitted by off-the-shelf Er-doped fibres. This measurement scheme is first calibrated using cutback tests, so that minimal processing is required between data collection and velocity readout. We then demonstrate the use of this method in an explosive cylinder test and achieve a spatial resolution of approximately ±2 mm, owing to its implementation in a helical geometry. Alongside the standard Er fibres, a specially made, high-concentration Er/Yb-doped fibre is also calibrated, which demonstrates a potential spatial resolution approaching ±20 μ m.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/21466aaa156e4405979c80dca5b666a3 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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