Quasi-distributed fiber optic temperature sensor working in transmission mode

摘要

In the paper, a quasi-distributed fiber optic temperature sensor working in transmission mode is presented. This sensor is based on partial reflection from silicone resin layers placed between ends of adjoining optical fiber segments. For signal dclection, an optical time domain reflectometer was used. The transmission mode of operation allows temperature to be measured in up to tens points whose spacing along the fiber can range from few centimeters to few kilometers. A complex calibration procedure of the sensor is also presented.