Novel Water Flow Facility in France Range Extension to Low Flow Rates (10 000 ml/h down to 1 ml/h)

被引：6

作者：

David, Christopher ^{[1
]}

Claudel, Pierre ^{[1
]}

机构：

[1] Ctr Tech Ind Aeraul & Therm, F-69603 Villeurbanne, France

来源：

MAPAN-JOURNAL OF METROLOGY SOCIETY OF INDIA | 2011年 / 26卷 / 03期

关键词：

Water Flow Rate; Volume Flow Rate; Flow Rate Measurement; Flow Range; Metrological Traceability;

D O I：

10.1007/s12647-011-0019-0

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In order to extend the French water flow calibration range, LNE-CETIAT is on progress to build a new reference for flow rate measurements ranging from 10 000 ml.h(-1) down to 1 ml.h(-1). This new facility based on a gravimetric principle will enable calibration with water temperature between 10 degrees C and 50 degrees C. Flow is regulated by the combined use of a tightly regulated "upstream" pressure (0,1 to 10 bar) and the use of capillaries under laminar flow. The expected relative uncertainty for the water flow rate is 0.1 % with a coverage factor k = 2 (95% confidence). The paper described the design and the ongoing implementation of this new calibration facility.

引用

页码：203 / 209

页数：7