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为了对不易被发现的早期小面积溢油进行高精度、全天候、实时在线的监测,以达到早发现、早预警、早处理的目的,提出了基于表面等离子体共振(surface plasmon resonance,SPR)技术的小型化实时在线海上溢油检测系统的设计思想,系统拟采用入射光源为非扫描的角度调制型方式,目的是便于光线完全覆盖待测样品检测时所需的入射角度范围。对大量的原油和石油样品的折射率进行检测确定其范围,再通过MATLAB与ZEMAX模拟仿真结合,得到了光源最优化的中心波长、入射角度范围以及棱镜的相关参数,并确定出探测器的相关指标。最终通过建模与仿真,验证了系统装置的可行性,并得出了初步试验方案。
In order to carry out high-precision, all-weather and real-time on-line monitoring of early small area oil spills which are not easy to be found, the surface plasmon resonance (SPR) technique is proposed to achieve early detection, early warning and early treatment. The aim of the system is to use the incident light source as a non-scanning angle modulation system, so as to facilitate that the light completely covers the range of the incident angle required for testing the sample under test. The refractive index of a large number of crude oil and petroleum samples were detected to determine its range, and then through the combination of MATLAB and ZEMAX simulation, the optimal center wavelength of the light source, the range of incident angle and the prism related parameters were obtained and the detector correlation index. Finally, through the modeling and simulation, the feasibility of the system is verified and the preliminary test scheme is obtained.