A low differential pressure standard in the range of 1 Pa to 31 kPa at KRISS

被引：0

作者：

Woo, Sam-Yong ^{[1
]}

Choi, In-Mook ^{[1
]}

Song, Han-Wook ^{[1
]}

机构：

[1] Korea Res Inst Stand & Sci, Phys Metrol Div, Mech Metrol Ctr, Taejon, South Korea

来源：

METROLOGIA | 2009年 / 46卷 / 01期

关键词：

D O I：

10.1088/0026-1394/46/1/016

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The accurate measurement of differential pressure at low line pressure is important in many industrial and commercial activities. A new differential pressure standard has been developed at the Korea Research Institute of Standards and Science. This standard covers a measuring range of 1 Pa to 31 kPa of differential pressure for operation with line pressures near 100 kPa. As part of its realization, a new automatic weight handling device has been developed, which enables the various weights to be added to or removed easily from the piston without breaking the reference vacuum during measurements. The system can generate differential pressures with an expanded uncertainty of 0.026 Pa + 2.3 x 10(-5)p (k = 2) in the range 1 Pa to 31 kPa.

引用

页码：125 / 128

页数：4

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