A high gas pressure calibration system using a liquid-lubricated pressure balance

被引：4
|
作者：
Iizumi, Hideaki [1 ]
Kajikawa, Hiroaki [1 ]
Kobata, Tokihiko [1 ]
机构：
[1] AIST, Natl Metrol Inst Japan, Tsukuba, Ibaraki, Japan
来源：
MEASUREMENT | 2017年 / 102卷
关键词：
Pressure standard; High gas pressure; Liquid-lubricated pressure balance; Calibration;
D O I：
10.1016/j.measurement.2017.01.054
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We developed a high gas pressure calibration system that uses a liquid-lubricated (LL) pressure balance as a standard for pressures up to 100 MPa. The LL pressure balance can generate gas or hydraulic pressure by changing the pressure medium. We first evaluate characteristics of the LL piston-cylinder (PC), such as its effective area and fall rate. The effective area of the LL PC is evaluated through comparison with a hydraulic pressure balance. When the LL PC uses a gas, the fall rate is affected by gas dissolution into liquid in the LL PC reservoir. The results of calibrating a pressure gauge under the developed system are consistent with those by an existing hydraulic pressure calibration system. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：106 / 111
页数：6
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