FIBRE-OPTIC EVANESCENT-WAVE FIELD FLUID CONCENTRATION SENSOR

被引：0
作者：
Fabian, M. [1 ]
Lewis, E. [1 ]
Newe, T. [1 ]
Lochmann, S. [2 ]
机构：
[1] Univ Limerick, Dept Elect & Comp Engn, Opt Fibre Sensors Res Ctr, Limerick, Ireland
[2] Frachbereich Elektrotech & Informat, D-23952 Wismar, Germany
来源：
2009 6TH INTERNATIONAL MULTI-CONFERENCE ON SYSTEMS, SIGNALS AND DEVICES, VOLS 1 AND 2 | 2009年
关键词：
Refractive index; optical fibre sensor; me-thanol; ethanol; acetone; n-propanol; LIQUID; ABSORPTION; SPECTROSCOPY; TEMPERATURE; LIGHT;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A fibre-optic fluid concentration sensor based on refractive index measurements is reported. Its working principle is validated for some simple aqueous primary alcohol mixtures, such as Acetone, Ethanol, Methanol, 1-Propanol, and 2-Pro-panol, covering a concentration range from 0%vol to 10%vol. With a simple and low cost LED based measurement setup a resolution of about 0.00005 refractive index units was achie-ved, which approximately corresponds to 0.2% methanol, 0.75% ethanol and acetone, and 0.05% 1-propanol and 2-propanol. Moreover, described sensing method is applicable for all fluids that show different refractive indices at different concentrations, which by far is the case for almost all fluids, since the refractive index of a mixture is related to its density.
引用
收藏
页码：935 / +
页数：2
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