一种基于弯曲损耗的光纤油位信号器的设计与实现  

Design and implementation of the oil annunciator based on the bending loss

作　　者：舒俊[1] 葛俊锋[1] 叶林[1] 张红杰 黄华辉 薛双喜 

机构地区：[1]华中科技大学自动化学院,武汉430074 [2]四川泛华航空仪表电器有限公司,成都610500

出　　处：《国外电子测量技术》2016年第8期82-85,共4页Foreign Electronic Measurement Technology

基　　金：国家自然科学基金(61104202);中央高校基本科研业务费专项资金(2014QN170)项目资助

摘　　要：利用光纤弯曲部位在空气和液体中的损耗不同的原理,提出了一种基于侧发光光纤弯曲损耗的油位信号器,并以验证此原理的可行性。通过分析侧发光光纤的特性及光纤液位信号器的检测原理,设计出信号器的测量电路和机械机构,最后模拟加放油情况进行原理试验,并分别改变试验环境中的光强和温度以及改变液体属性和温度进行环境及液体适应性试验,对此信号器的性能进行测试,试验结果显示其测量精度和迟滞区间均小于1mm,且稳定性良好,证明了此信号器的可行性。According to the difference between bending loss when in air and liquid,the oil annunciator which is used to detect the state of oil level is proposed.By analyzing the characteristics of the side-emitting optical fiber and the detection principle of the optical fiber oil annunciator,the circuitry and mechanical mechanism are designed.Finally,the experiment of principle is tested.And by changing light intensity and temperature in the environment,attributes and temperature in the liquid to test performance of the annunciator,the results show that the annunciator＇s accuracy and hysteresis range are less than 1mm and the annunciator is stable.The results also prove that the annunciator is feasible.

关 键 词：侧发光光纤 油位信号器 弯曲损耗 液位检测 

分 类 号：TN29[电子电信—物理电子学]