Abstract
This article introduces a distributed optical fiber vibration sensing system based on back-to-Rayleigh scattering, namely a phase-sensitive optical time domain reflectometer (φ-OTDR) system, which uses a direct detection method to detect vibration signals along the optical fiber. The system has been applied to the real-time monitoring of oil gathering pipelines. The monitoring length is 12 km. Through a series of verifications, the location accuracy of the system is ±30 m, and it can realize the simultaneous recognition of multiple vibration events. The distributed optical fiber vibration sensing system with back-to-Rayleigh scattering has a good application prospect in the health monitoring of oil gathering pipelines.
| Original language | English |
|---|---|
| Pages (from-to) | 1241-1245 |
| Number of pages | 5 |
| Journal | International Conference on Structural Health Monitoring of Intelligent Infrastructure: Transferring Research into Practice, SHMII |
| Volume | 2021-June |
| State | Published - 2021 |
| Event | 10th International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2021 - Porto, Portugal Duration: 30 Jun 2021 → 2 Jul 2021 |
Keywords
- Back-to-Rayleigh scattering
- Location
- Oil gathering pipelines
- Vibration sensing system
- φ-OTDR
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