考虑非线性因素的科氏质量流量计灵敏度分析  

Sensitivity Analysis of Coriolis Mass Flowmeter Based on Nonlinear Factors

作　　者：文军浩[1] 樊尚春[1] 郑德智[1] 汪昆明 

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100191

出　　处：《计测技术》2014年第6期18-21,共4页Metrology & Measurement Technology

基　　金：国家自然科学基金资助项目(61121003)

摘　　要：基于科氏质量流量计(CMF)测量管的工作原理,为了提高传感器的灵敏度,了解其振动过程中非线性项对于CMF灵敏度的影响至关重要。以U型管科氏质量流量计为研究对象,考虑非线性因素,用比较法推导出非线性项对于CMF灵敏度的影响。此外,通过实验仿真,优化传感器结构,进而提高传感器灵敏度。Based on the theory of measuring tube of coriolis mass flowmeter（ CMF）,and to improve the sensitivity of CMFs,the understanding of how the nonlinear factors affect the sensitivity of CMFs is very important in the vibrating process. By using the U type of CMF,this article focuses on two nonlinear factors with the comparison method. The results show that both contain nonlinear factors just as the nonlinear analysis had expected,the two factors actually have effect on the sensitivity of CMFs. Besides,by introducing the experimental simulation,we optimize the structure and improve the sensitivity of CMFs.

关 键 词：科氏质量流量计 非线性 灵敏度 分析 

分 类 号：TB943[一般工业技术—计量学]