J0405-2-1 OFDRによる偏波保持型FBGを用いた温度・ひずみ同時測定(知的材料・構造システム(2) 計測・損傷検出)

概要

論文の詳細を見る
The distributed strain sensing system with optical frequency domain reflectometry (OFDR) using fiber Bragg gratings (FBG) can measure distributed strain or temperature at an arbitrary position along an FBG with the high spatial resolution. As well as by the ordinary systems, however, strain measured by the sensing system can be influenced by the variation of temperature. In this study, we implemented simultaneous strain and temperature sensing by using PANDA (Polarization-maintaining AND Absorption-reducing) fiber. Through several experiments, we show that this sensing system can be applied to simultaneous distributed strain "and" temperature sensing.
2009-09-12