High-accuracy stable gas flow dilution using an internally calibrated network of critical flow orifices

P J Brewer; B A Goody; T Gillam; R J C Brown; M J T Milton

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High-accuracy stable gas flow dilution using an internally calibrated network of critical flow orifices

机译：使用内部校准的临界流量孔网络，实现高精度，稳定的气流稀释

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摘要

A network of critical flow orifices has been developed to form a gas flow dilutor capable of stable and repeatable operation, which is not influenced by environmental conditions. When used with a novel self-calibration method it achieves dilutions of up to 31:1 with a relative standard uncertainty of +-0.1percent. This new approach avoids the uncertainty generated by setting and controlling the flow which is present in devices based on variable flow elements.

机译：已开发出临界流量孔网络，以形成能够稳定且可重复运行的气流稀释器，而不受环境条件的影响。与新颖的自校准方法一起使用时，稀释度最高可达31：1，相对标准不确定度为+ -0.1％。这种新方法避免了通过设置和控制基于可变流量元件的设备中的流量而产生的不确定性。

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来源
《Measurement Science & Technology》 |2010年第11期|共8页
作者
P J Brewer; B A Goody; T Gillam; R J C Brown; M J T Milton;
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原文格式 PDF
正文语种 eng
中图分类仪器、仪表;
关键词
gas metrology; gas flow dilutor; critical flow orifice;

机译：气体计量;气体稀释器;临界流量孔;

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1. High-accuracy stable gas flow dilution using an internally calibrated network of critical flow orifices [J] . P J Brewer, B A Goody, T Gillam, Measurement Science & Technology . 2010,第11期

机译：使用内部校准的临界流量孔网络，实现高精度，稳定的气流稀释
2. The equation for critical flow of gas through an orifice [J] . J.C. Jones Transactions of The Institution of Chemical Engineers. Process Safety and Environmental Protection, Part B . 2012,第1期

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3. Numerical investigation on the hydrodynamics of the internal flow and spray behavior of diesel fuel in a conical nozzle orifice with the spiral rifling like guides [J] . Mohammadi Hassan, Jabbarzadeh Parinaz, Jabbarzadeh Mehrnaz, Fuel . 2017,第MAY15期

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High-accuracy stable gas flow dilution using an internally calibrated network of critical flow orifices

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