一种直接驱动式振动管密度测量装置的研制  

Apparatus for Density Measurement with Direct-driven Vibrating Tube Method

作　　者：魏传喆 潘江[1] 宋夏红 徐旭[1] WEI Chuan-zhe;PAN Jiang;SONG Xia-hong;XU Xu(China Jiliang University,Hangzhou,Zhejiang 310018,China;Changqing Oilfield,Company of Petro China,Xi'an,Shaanxi 710021,China)

机构地区：[1]中国计量大学,浙江杭州310018 [2]中国石油天然气股份有限公司长庆油田分公司,陕西西安710021

出　　处：《计量学报》2021年第10期1294-1298,共5页Acta Metrologica Sinica

基　　金：国家自然科学基金(51978623)。

摘　　要：研制了一种基于直接驱动式振动管原理的密度测量装置。在振动管内为真空和充满无水乙醇的条件下,温度为260~360 K、压力为0.1~20 MPa范围内标定了装置的仪器常数。通过测量异丙醇和仲丁醇的液体密度检验了装置的性能,并将实验结果与文献数据进行比较,异丙醇数据与文献数据偏差在0.2%以内,仲丁醇数据与文献数据偏差在0.3%以内,验证了装置的精度满足密度测量需求。A density measurement apparatus based on the direct-driven vibrating tube method was developed. Under the condition that the vibrating tube was filled with vacuum and ethanol,the instrument constants were calibrated at temperatures from 260 K to 360 K and pressures from 0. 1 MPa to 20 MPa. The performance of the device was validated by measuring the liquid densities of isopropanol and sec-butanol,and the experimental results were compared with literature data. The deviation of experimental data for isopropanol and sec-butanol from literature data were within ± 0. 2% and± 0. 3%,respectively. It was verified that the accuracy of the device met the requirements of density measurement. The results could serve as the references for other researchers.

关 键 词：计量学 密度测量 液体密度 振动管法 直接驱动 

分 类 号：TB933[一般工业技术—计量学]