DISTRIBUTED FIBER OPTIC SENSING TECHNOLOGY
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Brillouin optical time domain reflectometer (BOTDR) utilizes spontaneous Brillouin scattering. Spectral analysis of the back scattered light enable the system to measure the change in strain and/or temperature. Brillouin optical time domain analysis (BOTDA) utilizes stimulated Brillouin scattering to measure strain and temperature. The sensitivity of BOTDA system is significantly better than BOTDR. The main difference of these two systems is that, in BOTDA system, two laser beams are injected into opposite ends of the fiber. A continuous wave beam is injected into one end of the fiber, while a pulse is injected into the other. In BOTDR, only a single laser beam is pulsed into one end of the fiber.
ADVANTAGES
• Distributed measurement in strain and/or temperature • Long-term stability • Cost-effective solution for large numbers of point • Long range ~ 80km Sensing range • Chemical passive, not subjected to corrosion APPLICATIONS
• Structural Health Monitoring • Oil and Gas Pipeline Mornitoring • Geotechnical & Geohazard Monitoring • Tunnel Monitoring • Crack Detection • Highway Subsidence Monitoring |
BOTDA-BOTDR Combo Unit
Reinforced Fiber Optic Cable
Real Time Strain Monitoring
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31 Mandai Estate #01-05 Innovation Place, Singapore 729933
Tel : +65 6634 3023 Email: intouch@arges.com.sg About Us
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