油水界面液位的光纤测量技术研究  

Fiber Optic Sensing Technique for Monitoring Oil-Water Interface

作　　者：骆城[1] 余海湖[1] 郭会勇[1] 

机构地区：[1]武汉理工大学光纤传感技术国家工程实验室,湖北武汉430070

出　　处：《光学与光电技术》2015年第3期41-43,共3页Optics & Optoelectronic Technology

摘　　要：油品储罐是储存易燃、易爆油料的重要设备,在石油、化工、交通、储运等行业部门应用广泛。油罐液位检测是相关企业生产、管理及安全控制的重要环节。针对轻质油品储运管理及安全监测的需求,提出了一种基于光纤垂直端面反射的检测方法。光纤端面接触油、水表面时形成玻璃-油、玻璃-水反射界面,借助油、水折射率不同的特点,测量光纤中反射光强的变化来测定界面位置,实现对油罐中油水界面的测量,测量精度可达毫米级。Oil storage tanks are important equipments for storage of flammable,explosive fuel oils,and widely used in petroleum,chemical,transportation,storage and transportation industries.The monitoring of the liquid level in the oil tanks is required during the production,management and safety control for the enterprises.For the requirements of storage,transportation and safety monitoring of light oils,a fiber optic sensing technique for monitoring oil-water interface is proposed.Because there is a refractive index difference between oil and water,when the endface of an optic fiber approaches the surfaces of oil layer or wtaer layer,the reflected light intensity of the optic fiber endface at the air-oil interface and oil-water interface will vary and can be detected.Therefore,the levels of the oil or water can be detemined.The measurement accuracy can reach millimeter level.

关 键 词：轻质油储罐 油水界面 光纤传感测量 垂直端面反射 

分 类 号：TN253[电子电信—物理电子学]