传感技术学报2017，Vol.30Issue(2)：189-193,5.DOI:10.3969/j.issn.1004-1699.2017.02.004
基于光纤光栅的液体粘度测量方法的研究
Study on Measurement Method of Liquid ViscosityBased on Fiber Bragg Grating
摘要
Abstract
According to the online measurement of liquid viscosity,a new measuring method based on the fiber Bragg grating(FBG)is proposed.Through this method,the liquid viscosity can be derived from the variation of the FBG center wavelength.This method,the viscosity can be obtained by the fluid flowing,is a new exploration and breakthrough.Using FBG to sensing the stress change of cantilever beam caused by viscous force on the surface of the blocking element with the liquid flowing.Then,the stress change will be calculated by the center wavelength variation obtained from the FBG interrogator,thereby the corresponding viscosity value can be gotten.Through the experimental study,the measurement system was calibrated by the standard viscosity liquids,and the mathematical model between the center wavelength variation and the liquid viscosity was established.Eventually,the verification experiments,test results of a group of liquid viscosity from this measurement system comparing with the result from the standard viscometer,has verified the feasibility of the experimental method.关键词
液体粘度在线测量/光纤光栅/波长变化量/阻流元件Key words
liquid viscosity online measurement/fiber bragg grating/wavelength variation/blocking element分类
信息技术与安全科学引用本文复制引用
陈曦,赵美蓉,黄银国..基于光纤光栅的液体粘度测量方法的研究[J].传感技术学报,2017,30(2):189-193,5.基金项目
国家重大科学仪器设备开发专项项目(2013YQ030915) （2013YQ030915）
国家自然科学基金青年科学基金项目(61304246) （61304246）
