公开(公告)号：US09404856B2

公开(公告)日：2016-08-02

申请号：US13907993

申请日：2013-06-03

Applicant: Macau University of Science and Technology

Inventor： Jianqing Li ,  Ben Xu ,  Yuanyuan Pan

IPC: G01N21/41 ,  G01N21/43

CPC classification number: G01N21/41 ,  G01N2021/433 ,  G01N2021/438

Abstract: An optical detection system for measuring a refractive index of a liquid analyte comprising a light transmitting assembly fiber, which includes a single-mode fiber, an optical fiber sensing module and a multi-mode fiber. The optical detection system is configured to emit a coherent light beam to one end of the assembly fiber; and a detector is configured to capture a specklegram from an exit end of the assembly fiber. When the optical detection system is in operation, the optical fiber sensing module is configured to be submerged into the liquid analyte. By analyzing the correlation between the specklegram corresponding to the liquid analyte and the reference specklegram, the refractive index of the liquid analyte can be obtained.

Abstract translation: 一种用于测量液体分析物的折射率的光学检测系统，包括包括单模光纤，光纤感测模块和多模光纤的光传输组件光纤。 光学检测系统被配置为向组装光纤的一端发射相干光束; 并且检测器被配置为从组装光纤的出口端捕获散斑。 当光学检测系统运行时，光纤传感模块被配置成浸没在液体分析物中。 通过分析对应于液体分析物的散斑图与参考散点图之间的相关性，可以获得液体分析物的折射率。