Model FTB 2505 - Fiber-optic Sensing System for Distributed Strain and Temperature Monitoring Brochure

fTB 2505Fiber-optic sensing system for distributed strain and temperature monitoringthe nerves of your structureUninterrupted monitoring is essential to manage risks and maintenance of large structures. Where kilometers of concrete, steel or soil are to be monitored for the early signs of failure, distributed optical fiber sensors are a powerful and highly efficient tool.The fTB 2505 system employs fibrisTerre’s new, fully-digi- tal Brillouin measurement approach: A small, robust and Reliable and uninterrupted structural health monitoringeasy to use sensor system – perfect for use on construc-tion sites and reliable in long-term operation.The fTB 2505 system uses industry standard optical fibers (the same used in everyday telecommunications) as con-tinuous, long-range strain and temperature sensors. Application-specific coating solutions allow for reliable and versatile implementation into earth and rigid structures.fTB 2505optical fibermeasurement trace10 km 11 km 12 kmslope break? beginning failure?13 kmfTB 2505Brillouin distributed sensingWhen laser signals injected from both ends of a fiber optic cable meet, backscattering occurs. The wave-length of the backscattering varies according to the strain and temperature that the fiber is experiencing.This phenomenon is used to perform accurate strain and temperature measurements.Typical applications¡¡ Early failure detection in geotechnical structures¡¡ Fatigue monitoring of bridges, tunnels, dams¡¡ Oil and gas pipeline monitoring¡¡ Strain and temperature monitoring in mining¡¡ Displacement monitoring of river embankmentsThe complete monitoring solutionfibrisTerre provides¡¡ Tailored service packages for new constructions¡¡ Specific solutions for retro-fitting of existing structures¡¡ Quality installation and management through a strong network of partners and integrators¡¡ A long-term partnership for reliability in service, maintenance and system upgradesKey featuresfibrisTerre’s patented frequency domain (BOFDA) technology provides¡¡ Industry leading data accuracy: < 2 µ for strain and < 0.1°C for temperature¡¡ Spatial resolution of 0.5 m over 25 km distance¡¡ Superior attenuation budget¡¡ Full loop measurement, no return fiber needed ¡¡ High-precision measurement of fiber length¡¡ Access to all raw data¡¡ Field friendliness due to light weight and low power consumptionThe user interfaceThe fTB 2505 readout unit is controlled by a remote or local PC or workstation via Ethernet. fTView, fibrisTerre’s powerful monitoring software, enables the user to configure, perform, display and manage measurements.¡¡ Easy measurement setup¡¡ Automatic long-term monitoring in user defined intervals¡¡ A unique, powerful signal processing engine¡¡ Multiple data export, management and service optionsThe CompanyfibrisTerre is a Berlin based designer and manufacturer of the pioneering Brillouin Optical Frequency Analysis (BOFDA) based distributed fiber optic sensing system capable of simultaneous strain and temperature measu-rements. Automatically measuring all points along its long distance sensing cables, fibrisTerre‘s systems leave no critical spots of a structure unattended.With a strong focus on research and development, fibrisTerre continues to improve the capability and quality of its technology, offering cutting edge solutions for structural health monitoring projects in the civil engineering, geotechnical engineering and the energy sector.© fibrisTerre GmbH, August 2013. All preliminary information contained herein is believed to be accurate and is subject to change without notice. No responsibility is assumed for its use. Picture credits: istockphoto.com: chinaface, westphalia, sublimation, trait2lumiere; fotolia.com: odmeyer.fibrisTerre GmbH Köpenicker Str. 154 10997 BerlinGermany tel + 49 30 6290 1320info@fibristerre.dewww.fibrisTerre.de funded by:a spin-off of:Fiber type Standard single-modeOptical connectors E-2000 / APCSensor configuration loopDistance range (fiber loop) 25 kmSpatial resolution 0.5 mSpatial accuracy 0.05 mDynamic range > 10 dBMeasurable parameters Brillouin frequency shift, temperature, strainAccuracy and range straintemperatureBrillouin freq. shiftAccuracy Range< 2 µ -3% to +3% 1)< 0.1°C -273 to +1000°C 1)< 100 kHz 10 – 13 GHzTypical acquisition time 2) 0.2 km fiber 2 km fiber 10 km fiber 25 km fiber20 seconds 1 minute 8 minutes25 minutesCommunication interface EthernetData export formats binary, ASCIIMeasurement modes Single measurements on demand; continuous monitoringAutomatic detection of fiber length and attenuationRemote operation Remote measurements, system diagnosticsOperating temperature 5 - 40°CDimensions L x W x H 495 x 482 x 145 mm (19‘‘ rack case)Weight 13 kgPower consumption 60 W1) Limited by optical fiber 2) Estimated for typical measurements. Measurement time will vary with resolution, accuracy and strain/temperature range.fTB 2505 seriesFiber-optic measurement system for distributed strain and temperature monitoringPerformance, features and technical data