计量学报2025，Vol.46Issue(3)：398-404,7.DOI:10.3969/j.issn.1000-1158.2025.03.13
双U型振动管密度计的研制
Development of Double U Type Vibrating Tube Densimeter
摘要
Abstract
In order to realize high-precision measurement of liquid density,a double U type vibrating tube densimeter based on electromagnetically driven principle was developed.Using this device,the instrument parameters of the densimeter were calibrated in the temperature range of 278～345 K,using vacuum and pure water,respectively.The performance of the device was verified by measuring the densities of ethanol and isopropanol,and the experimental data were compared with the results from REFPROP and literatures.The results showed that the experimental results agreed well with the literature data,which confirmed the reliability and accuracy of the experimental system.Finally,the measurement uncertainty of the experimental device was evaluated,and the expanded uncertainty of density was 0.42 kg/m3(k=2).关键词
密度计量/双U型振动管密度计/液体密度/振动法/电磁驱动/不确定度评估Key words
density measurement/double U type vibrating tube densimeter/liquid density/vibration method/electromagnetically driven/uncertainty evaluation分类
通用工业技术引用本文复制引用
孟荣丽,唐建祥,潘江,谢代梁,方卫华,王文种,陶然..双U型振动管密度计的研制[J].计量学报,2025,46(3):398-404,7.基金项目
国家重点研发计划(2022YFC3204504) （2022YFC3204504）
