DocumentCode
2883251
Title
High-frequency ultrasound detection using a fibre Bragg grating
Author
O´Neil, S.F. ; Hathaway, M.W. ; Fisher, N.E. ; Webb, D.J. ; Pannell, C.N. ; Jackson, D.A. ; Gavrilov, L.R. ; Hand, J.W. ; Zhang, L. ; Bennion, I.
Author_Institution
Appl. Opt. Group, Canterbury Univ., Christchurch, New Zealand
fYear
1999
fDate
1999
Abstract
We demonstrate the feasibility of using in-fibre Bragg gratings to measure MHz acoustic fields and temperature simultaneously. We achieved a noise-limited pressure resolution of ≈4.5*10-4 Atm/√Hz and temperature measurements accurate to 0.2°C. Some preliminary results from a quasi-distributed array of 3 FBGs are outlined
Keywords
fibre optic sensors; acoustic field measurement; fibre Bragg grating; high-frequency ultrasound detection; optical sensor; quasi-distributed array; temperature measurement;
fLanguage
English
Publisher
iet
Conference_Titel
Optical Fibre Gratings (Ref. No. 1999/023), IEE Colloquium on
Conference_Location
Birmingham
Type
conf
DOI
10.1049/ic:19990148
Filename
771907
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