发明名称 |
Apparatus for determining the effects of dilution and/or diffusion on the gaseous components of a gas flow |
摘要 |
An apparatus for determining the effect of dilution and/or diffusion of the gaseous components of a gas flow passing through a gas permeable test object is claimed. The apparatus comprises a source of calibrating gas, a laminar resistance coupled to the source of calibrating gas with the gas flowing through the laminar resistance, and a volumeter is coupled to the laminar resistance for measuring the volume of gas flowing therethrough. The gas from the laminar resistance flows through the test object to a gas concentration measuring device for receiving and for measuring the concentration thereof. A bypass device is provided for bypassing the flow of gas around the test object, and a suction device draws gas from the source to the measuring device.
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申请公布号 |
US4348887(A) |
申请公布日期 |
1982.09.14 |
申请号 |
US19800174573 |
申请日期 |
1980.08.04 |
申请人 |
B.A.T. CIGARETTEN-FABRIKEN GMBH |
发明人 |
LORENZ, HANS-WALTHER;SCHUMACHER, GERD;KIRCHNER, HELMUT |
分类号 |
A24C5/34;G01N15/08;(IPC1-7):G01N31/08 |
主分类号 |
A24C5/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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