计量学报2011，Vol.32Issue(2)：182-186,5.DOI:10.3969/j.issn.1000-1158.2011.02.19
基于级联长周期光纤光栅的溶液折射率与浓度的测量研究
The Measurement of the Refractive Index and Concentration of Solutions Based on Long-period Gratings
摘要
Abstract
The resonant peaks of long-period grating pair are sensitive to external refractive index.According to this characteristic, on-line and real-time measurement of liquids refractive index and concentration can be realized.NaCl and sugar solutions which are of different refractive index are studied.The relationships among refractive index, concentration and resonant peaks are obtained.The experimental results show that the LPGP is sensitive to the external refractive index which is in the range of 1 to 1.4513, when the external refractive index increase, the amplitude of loss peak decrease gradually and the central wavelength has a blue shift.This sensor is quite useful for chemical, pharmaceutical, biological,and process control sensing applications and it has very high practical value.关键词
计量学/折射率/光纤传感/级联长周期光纤光栅/浓度测量Key words
Metrology/Refractive index/ Optical fiber sensing/ Long period grating pair/ Concentration measurement分类
通用工业技术引用本文复制引用
胡兴柳,梁大开,曾捷,陆观..基于级联长周期光纤光栅的溶液折射率与浓度的测量研究[J].计量学报,2011,32(2):182-186,5.基金项目
国家自然科学基金(60907038,51007002) （60907038,51007002）
江苏省自然科学基金(BK2009370) （BK2009370）
南京航空航天大学研究生创新基金(实验室)开放基金(200901001) （实验室）
南京航空航天大学基本科研业务费专项科研项目(NS2010012) （NS2010012）
安徽省高等学校省级优秀青年人才基金(2010SQRL038) （2010SQRL038）
安徽省教育厅自然科学基金重点项目(KJ2010A341) （KJ2010A341）
