现在的漏油传感器主要是电传感器。采用光纤的流体传感器可用于监视石油贮油罐或管路等的漏油,近年来这项研究工作相当活跃。日本大学正着眼研究采用偏心芯线光纤的传感器。通常的光纤芯线位于包层中心,而偏心芯线光纤的芯线接近包层的外周。按照设计值,这种光纤与液体接触产生的光损耗为每厘米几分贝,证实它具有高 The current oil spill sensor is mainly electric sensor. Fiber-optic fluid sensors can be used to monitor oil spills in oil storage tanks or pipelines. This research activity has been quite active in recent years. Japanese universities are looking at sensors that use eccentric core fiber. Conventional fiber cores are in the center of the cladding, while cores of the eccentric core fiber are close to the outer periphery of the cladding. According to the design values, the optical loss of this fiber in contact with the liquid is a few decibels per centimeter, confirming that it has a high