利用液体密度标准物质校准振动式密度仪  

Calibration of Vibrating Density Meter Using Liquid Density Reference Material

作　　者：张怡雯 陈超云[2] 雷鸣 许诚 ZHANG Yiwen;CHEN Chaoyun;LEI Ming;XU Cheng

机构地区：[1]苏州市计量测试院 [2]上海市计量测试技术研究院 [3]苏州城市学院 [4]不详

出　　处：《计量与测试技术》2024年第3期29-31,共3页Metrology & Measurement Technique

基　　金：2023年教育部产学合作协同育人项目(项目编号:230805377071846);2023年江苏省大学生创新创业训练计划(项目编号:202313983048Y);2022年教育部高等学校科学研究发展中心中国高校产学研创新基金项目(项目编号:2022BL082)。

摘　　要：针对JJG 1058-2010《实验室振动式液体密度仪》,提出采用液体密度标物(密度标物)校准振动式液体密度仪(密度仪)的方法,并与上海市计量院(SIMT)进行精密级密度仪比对试验。在(650~2000)kg/m3范围内,选取3种物理和化学性质稳定的密度标物作为计量标物,对密度仪进行校准,并分析密度标物的计量特性。结果表明:|En|最大为0.3,比对结果满意,可为该类仪器的校准提供一种现实可行的方法,有助于我国高精度密度测量仪器的研制和开发。According to JJG 1058-2010"Laboratory Oscillation-type Liquid Density Meters",a method of calibrating vibratory liquid densitometer(densitometer)with liquid density standard(densitometer)was proposed,and the precision level densitometer was compared with SHANGHAI Institute of Metrology(SIMT).In the range of(650~2000)kg/m?,three density markers with stable physical and chemical properties were selected as measurement markers,the density meter was calibrated,and the measurement characteristics of the density markers were analyzed.The results show that the maximum value of|E_n|is 0.3,and the comparison results are satisfactory,which provides a practical and feasible method for the calibration of such instruments,and is helpful to the research and development of high-precision density measuring instruments in our country.

关 键 词：密度标准物质 U型振动管 密度测量 比对试验 

分 类 号：TH715.2[机械工程—测试计量技术及仪器]