Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/1334
Title: | Strain and temperature sensors using multimode optical fiber Bragg gratings and correlation signal processing |
Authors: | Lim, J Yang, QP Jones, BE Jackson, PR |
Keywords: | Bragg grating;Correlation;Hydraulic valve;Multimode;Optical fiber;Optically-powered;Strain;Temperature |
Issue Date: | 2002 |
Publisher: | IEEE |
Citation: | IEEE Transactions on Instrumentation and Measurement 51(4): 622-627, Aug 2002 |
Abstract: | Multimode fiber optic Bragg grating sensors for strain and temperature measurements using correlation signal processing methods have been developed. Two multimode Bragg grating sensors were fabricated in 62/125 m graded-index silica multimode fiber; the first sensor was produced by the holographic method and the second sensor by the phase mask technique. The sensors have signal reflectivity of approximately 35% at peak wavelengths of 835 nm and 859 nm, respectively. Strain testing of both sensors has been done from 0 to 1000 με and the temperature testing from 40 to 80°C. Strain and temperature sensitivity values are 0.55 pm/με and 6 pm/°C, respectively. The sensors are being applied in a power-by-light hydraulic valve monitoring system. |
URI: | http://bura.brunel.ac.uk/handle/2438/1334 |
DOI: | https://doi.org/10.1109/tim.2002.802253 |
ISSN: | 0018-9456 |
Appears in Collections: | Advanced Manufacturing and Enterprise Engineering (AMEE) Dept of Mechanical and Aerospace Engineering Research Papers |
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