An all-fiber system for simultaneous interrogation of distributed strain and temperature sensing using spontaneous Brillouin scattering
We demonstrate a low-loss, long-range, single-ended distributed optical fiber sensor to measure both temperature and strain simultaneously and unambiguously. By using the Landau-Placzek ratio and cascaded Mach-Zehnder interferometric filters, we measure both the intensity and the frequency changes i...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
2000.
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| Subjects: | |
| Online Access: | Get fulltext |
| LEADER | 01059 am a22001573u 4500 | ||
|---|---|---|---|
| 001 | 13631 | ||
| 042 | |a dc | ||
| 100 | 1 | 0 | |a Kee, H.H. |e author |
| 700 | 1 | 0 | |a Lees, G.P. |e author |
| 700 | 1 | 0 | |a Newson, T.P. |e author |
| 245 | 0 | 0 | |a An all-fiber system for simultaneous interrogation of distributed strain and temperature sensing using spontaneous Brillouin scattering |
| 260 | |c 2000. | ||
| 856 | |z Get fulltext |u https://eprints.soton.ac.uk/13631/1/2023.pdf | ||
| 520 | |a We demonstrate a low-loss, long-range, single-ended distributed optical fiber sensor to measure both temperature and strain simultaneously and unambiguously. By using the Landau-Placzek ratio and cascaded Mach-Zehnder interferometric filters, we measure both the intensity and the frequency changes in the Brillouin backscattered signal. Strain and temperature measurements can then be independently resolved. A temperature resolution of 4°C, a strain resolution of 290 µ.epsilon, and a spatial resolution of 10m have been achieved for a sensing length of 15 km. | ||
| 540 | |a accepted_manuscript | ||
| 655 | 7 | |a Article | |