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Main Phone: 1.540.961.5190 Luna Technologies' is a division of Luna Innovations Incorporated. © Luna Technologies 2008 |
Distributed Temperature and Strain
   Luna Technologies' Distributed Temperature and Strain Sensing Software, when combined with the Optical Backscatter Reflectometer (OBR), transforms your standard telecom-grade fiber into a high spatial-resolution strain and temperature sensor. The OBR uses swept wavelength interferometry (SWI) to measure the Rayleigh backscatter as a function of length in optical fiber with high spatial resolution. An external stimulus (like a strain or temperature change) causes temporal and spectral shifts in the local Rayleigh backscatter pattern. The OBR measures these shifts and scales them to give a distributed temperature or strain measurement. The SWI approach enables robust and practical distributed temperature and strain measurements in standard fiber with millimeter-scale spatial resolution over tens to hundreds of meters of fiber with strain and temperature resolution as fine as 1 µstrain and 0.1 °C. ADVANTAGES:Use standard telecom-grade fiber. No more expensive specialty fibers needed for measurements.Highly distributed fiber sensing for strain and temperatureVery high spatial resolution: down to 2 mmHundreds of meters of sensing length+/- 0.1°C , +/- 1µstrain resolution at 1 cmHigh speed – 5 s acquisition times at high resolutionHigh temperature capabilties - up to 900°CAPPLICATIONS:Short range communications networks (local intranet, fiber to the home, shipboard and aircraft data bus):
Structural monitoring for naval, aerospace and civil structures:
Temperature profile monitoring in extreme environments:
Pipeline shift and leak detection Electrical power line sag and temperature monitoring
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