OS1112 可搬化したマッハ・ツェンダ干渉計型光ファイバAEセンサの感度および指向性の改善(実験力学における最近の進歩,オーガナイズドセッション)

Abstract

We have developed the Mach-Zehnder interferometer type optical fiber AE sensor that has portability by adhering the optical fiber to a polycarbonate block. The aim of this research is to improve the sensitivity and the directivity of the sensor. It is demonstrated that by increasing the number of sensing regions, the difference of the sensitivity against the directions tends to disappear. It is also found that the absolute sensitivity of the sensor is described by the sinusoidal function.