| Autor: |
Fouda Bernard Marie, Tabi, Helene Carole, Edima-Durand, Jacques, Atangana, Wenjun, Zhang |
| Zdroj: |
IEEE Sensors Journal; December 2024, Vol. 24 Issue: 24 p40939-40951, 13p |
| Abstrakt: |
Brillouin optical time-domain analysis (BOTDA) is a powerful device that measures temperature along sensing cables/fiber optics with fast response. The Brillouin gain spectrum for various sensing cable lengths is analyzed according to the principles of the device system. Experiments are carried out on the original data collected from the BOTDA device along a 100-km sensing cable; these original data are collected at four different positions (5, 10, 50, and 90 km) of the sensing cable. Analytically, the results show a lot of noise coming from the BOTDA device, especially when the length of the sensing cable increases. For this reason, this article proposes the use of a shielded printed circuit board (PCB) winding flyback converter to address this issue. It is demonstrated that the proposed approach (PA) greatly reduces high-frequency noise by almost 23 dB. Two independent filters have been used to filter the original data. Their results are compared with those obtained by the PA. The results show that the PA benefits from the best processing time, regardless of the portion on which the test is performed. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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