B6.2 - Incoherent Optical Frequency Domain Reflectometry for Distributed Raman and Bragg Fiber Temperature Sensors
- AMA Conferences 2017
2017-05-30 - 2017-06-01
- Proceedings Sensor 2017
- B6 - Distributed and Fiber Bragg Grating Sending I
- M. Köppel, S. Werzinger, J. Sutter, S. Bergdolt, B. Schmauss - Friedrich-Alexander University Erlangen-Nuremberg, Erlangen (Germany), R. Engelbrecht - Technische Hochschule Nürnberg Georg Simon Ohm (Germany)
- 261 - 266
Optical temperature sensors have become indispensable for many important future technologies, for example in the energy sector. However, most commercially available systems offer either distributedmeasurements or high temperature resolution at distinct hot spots since they are restricted to onemeasurement principle. We have combined two concepts, fiber Bragg grating (FBG) temperaturesensors and Raman based distributed temperature sensing, to overcome these limitations. Our incoherent optical frequency domain reflectometry (IOFDR) system allows to perform truly distributed temperature measurements with a mean standard deviation of 1.5 K at a spatial resolution in the order of 1 m and FBG hot spot measurements using a single measurement setup.