发明授权
- 专利标题： Gas concentration analysis method and system
- 专利标题（中）： 气体浓度分析方法和系统
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申请号： US971613申请日： 1978-12-20
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公开(公告)号： US4208902A公开(公告)日： 1980-06-24
- 发明人: Bang M. Kim , John A. Quinn , David J. Graves
- 申请人： Bang M. Kim , John A. Quinn , David J. Graves
- 申请人地址： PA Allentown
- 专利权人： Air Products and Chemicals, Inc.
- 当前专利权人： Air Products and Chemicals, Inc.
- 当前专利权人地址： PA Allentown
- 主分类号： G01N7/10
- IPC分类号： G01N7/10
摘要：
A method and system for analyzing gas concentration by measuring the steady state pressure in a dual membrane cell. A first membrane is exposed to a test gas and a second membrane to a reference gas where the first and second membranes have differing permeabilities. The test gas and the reference gas continuously counterdiffuse through the membranes and the steady state pressure in the intermembrane space is directly proportional to the gas concentration of the test gas component.
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