Turbidity and RI Dependency of a Polymer Optical Fiber-Based Chromatic Sensor

被引：3
作者：
Duarte, Daniel P. [1 ,2 ]
Nogueira, Rogerio N. [1 ]
Bilro, Lucia [1 ]
机构：
[1] Inst Telecomunicacoes, P-3810193 Aveiro, Portugal
[2] Aveiro Univ, Phys Dept, P-3810193 Aveiro, Portugal
来源：
SENSORS | 2020年 / 20卷 / 01期
关键词：
chromatic sensor; refractive index; turbidity; in-line; colorimeter; optical fiber; COLORIMETER; COLOR;
D O I：
10.3390/s20010019
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
An in-line and real time chromatic sensor for liquids based on plastic optical fiber was developed. It uses an air gap, fiber to fiber, transmission principle. Its dependency to turbidity and refractive index is studied and characterized. This information will provide the necessary knowledge for future implementation of more complex auto-compensations routines. Due to the predictable behavior of the sensor to variations of turbidity and refractive index, it is shown that a posterior compensation could be applied for the discrimination of color. The real-time color sensor can be used in different turbid liquids and contain different refractive indices.
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页数：10
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