基于荧光机理的油污探测分光技术研究  

Study on the Light Splitting Technique of Oil Contamination Detection Based on Fluorescence Mechanism

作　　者：白芳洲 康建军[1] 李林奇[1] 王垚廷[2] BAI Fang-zhou;KANG Jian-jun;LI Lin-qi;WANG Yao-ting(National Ocean Technology Center,Tianjin 300112,China;Xi＇an Technological University,Xi＇an 71002L Shaanxi Province,China)

机构地区：[1]国家海洋技术中心,天津300112 [2]西安工业大学,陕西西安710021

出　　处：《海洋技术学报》2018年第5期46-52,共7页Journal of Ocean Technology

基　　金：国家海洋技术中心创新基金资助项目(F11700413)

摘　　要：石油污染事故危害时间长,影响范围广,及时发现溢油的存在并预警对水资源的保护具有重要的意义,因此有必要研制一种便携式油污探测传感器。基于石油及其炼制物受紫外光源激发产生荧光的机理,利用三棱镜和光栅的色散特性,配以多种光学元件,提出了三种不同的分光系统。利用分光系统实现了对油类及其炼制物荧光的探测,考察了不同系统的探测距离和分光能力。实验结果表明三种实验系统均能达到预期的分光效果,实现了对油类污染物荧光的探测。其中三棱镜和光栅实验系统探测结果受距离影响较大,只适用于近距离探测;改进后的光栅实验系统探测距离有了明显改善,能够适用于远距离探测,系统体积较小,分光效果明显,不易受外界杂散光干扰。Petroleum pollution accidents have enduring harm and a wide series of impact, which cause great damage to the river and marine ecological environment, In-time detection of oil spills and early warning have a great significance for water resources protection, therefore it is important to develop a portable oil pollution detection sensor. This paper proposes three kinds of different spectrum-dividing systems by using the dispersion characteristics of three-prism and grating,based on the mechanism that oil and its refinery is stimulated by ultraviolet light source to produce fluorescence.The fluorescence detection of oil and its refinery here been realized by using spectrum-dividing systems, and the detection range and the light splitting ability of different systems are investigated.The experimental results show that three kinds of experimental systems can achieve the expected effect of light splitting, and realize the detection of oil pollutant fluorescence.The detection results of experimental system based on three-prism and grating are greatly influenced by the distance, which is only suitable for close-range detection.The improved experimental system of grating has improved detection distance and can be applied to long-distance detection.The system is small in volume, the effect of light splitting is remarkable, and it is not easy to be disturbed by external stray astigmatism.

关 键 词：油类污染物 荧光 三棱镜 光栅 

分 类 号：TE991.5[石油与天然气工程—石油机械设备]