期刊
SENSORS
卷 20, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/s20010019
关键词
chromatic sensor; refractive index; turbidity; in-line; colorimeter; optical fiber
资金
- FCT/MEC
- FEDER - PT2020 partnership agreement [UID/EEA/50008/2019, INITIATE-IF/FCT-IF/01664/2014/CP1257/CT0002]
- FCT [SFRH/BD/130966/2017]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/130966/2017] Funding Source: FCT
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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