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| 基于流速修正的单直管CMF密度测量方法 | |
| 引用本文： | 曹胜强,张海涛,涂亚庆,沈林,朱超. 基于流速修正的单直管CMF密度测量方法[J]. 传感器与微系统, 2017, 36(4). DOI: 10.13873/J.1000-9787(2017)04-0071-03 |
| 作者姓名： | 曹胜强 张海涛 涂亚庆 沈林 朱超 |
| 作者单位： | 1. 后勤工程学院后勤信息与军事物流工程系,重庆,401331;2. 重庆市澳凯龙医疗器械研究有限公司,重庆,401121 |
| 基金项目： | 国家自然科学基金资助项目，重庆市自然科学基金重点资助项目，重庆市首批百名学术学科人才专项，重庆市社会事业与民生保障科技创新专项一般资助项目 |
| 摘 要： | 科氏流量计(CMF)可以直接测量流体密度,目前单直管CMF的密度测量均未考虑流体流速的影响,密度测量精度受到限制.本文通过力学建模分析,得出了流体流速对单直管CMF密度测量的影响规律,推导了考虑流速影响的单直管CMF密度测量公式,并利用ANSYS Workbench进行了仿真验证.仿真结果表明:当流体流动时,与不考虑流速影响的单直管CMF密度测量结果相比,本文考虑流速影响得到的密度测量值与实际密度值更加吻合. |
| 关 键 词： | 科氏质量流量计 密度测量 流速 ANSYS |
Density measurement method of single straight tube CMF based on flowrate modification |
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| CAO Sheng-qiang,ZHANG Hai-tao,TU Ya-qing,SHEN Lin,ZHU Chao. Density measurement method of single straight tube CMF based on flowrate modification[J]. Transducer and Microsystem Technology, 2017, 36(4). DOI: 10.13873/J.1000-9787(2017)04-0071-03 | |
| Authors: | CAO Sheng-qiang ZHANG Hai-tao TU Ya-qing SHEN Lin ZHU Chao |
| Abstract: | Coriolis mass flowmeters (CMFs) can measure fluid density directly.However,the density measurement of single straight tube CMFs does not take into account the influence of the flowrate,and the precision of density measurement is limited.Through the mechanical modeling analysis,the influence rule of flowrate on density measurement of single straight tube CMFs is obtained.The formula of density measurement of single straight tube CMFs is deduced based on flowrate modification,which is verified by ANSYS simulation.Simulation results show that the densities measured in consideration of the influence of flowrate are more consistent with the actual density values,compared with the density measurements without considering the influence of flowrate. |
| Keywords: | Coriolis mass flowmeters density measurement flowrate ANSYS |
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