Palladium-based hydrogen sensing for monitoring of ageing materials

R. R J Maier, J. S. Barton, J. D C Jones, S. McCulloch, B. J S Jones, G. Burnell

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

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 H2 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. © British Crown Copyright 2006/MOD.

Original languageEnglish
Pages (from-to)1118-1123
Number of pages6
JournalMeasurement Science and Technology
Volume17
Issue number5
DOIs
Publication statusPublished - 1 May 2006

Keywords

  • Fibre Bragg grating
  • Fibre optic sensing
  • Hydrogen
  • Palladium

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