Long period gratings as solution concentration sensors

被引:150
作者
Falciai, R [1 ]
Mignani, AG [1 ]
Vannini, A [1 ]
机构
[1] CNR, IROE, Optoelect & Photon Dept, I-50127 Florence, Italy
关键词
long-period gratings; optical fiber sensors; refractometry; concentration measurements;
D O I
10.1016/S0925-4005(00)00714-0
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The on-line concentration measurement of solutions is of great interest in many industrial processes as a means of quality production control, in order to measure concentrations of harmful solutions or solutions that cannot be reached by the operator. An optical fiber long-period,orating (LPG), tested for the refractometry of sodium chloride, calcium chloride and ethylene glycol aqueous solutions, is presented. Resolution values comparable to or even better than those offered by an Abbe refractometer, that is typically used in these types of measurements, an obtained (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:74 / 77
页数:4
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