Palladium-based hydrogen sensing for monitoring of ageing materials

被引：25

作者：

Maier, R. R. J. ^{[1
]}

Barton, J. S.

Jones, J. D. C.

McCulloch, S.

Jones, B. J. S.

Burnell, G.

机构：

[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

[2] AWE Plc, Reading RG7 4PR, Berks, England

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2006年 / 17卷 / 05期

关键词：

fibre Bragg grating; fibre optic sensing; hydrogen; palladium;

D O I：

10.1088/0957-0233/17/5/S30

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Palladium and its alloys show a high and selective affinity for hydrogen, resulting in a volume expansion. Fibre Bragg gratings attached to palladium elements are used to monitor the resultant strain from the hydrogen uptake. The technique is aimed at low concentration hydrogen monitoring to a few hundred ppm, where H-2 is the result of ageing of polymer materials. We demonstrate a sensor exhibiting 10 ppm sensitivity and report on observed cross sensitivity to environmental conditions.

引用

页码：1118 / 1123

页数：6

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