发明名称 |
METHOD AND APPARATUS FOR SAMPLING OF A PARTICLE-BEARING GAS |
摘要 |
<p>METHOD AND APPARATUS FOR SAMPLING OF A PARTICLE-BEARING GAS A method and apparatus for sampling a particle-bearing gas in which a vacuum is applied to the gas to generate a stream of gas, the flow of the stream is maintained constant, and particles are collected from the stream. A constant flow controller responsive to the static pressure of the gas in the stream provides a flow restriction which gradually decreases to compensate for a gradually increasing flow restriction caused by particles collecting on an initially particle-free collection filter located in the stream.</p> |
申请公布号 |
CA1113277(A) |
申请公布日期 |
1981.12.01 |
申请号 |
CA19790335979 |
申请日期 |
1979.09.19 |
申请人 |
SIERRA INSTRUMENTS, INC. |
发明人 |
OLIN, JOHN G.;AHLQUIST, NORMAN C. |
分类号 |
G01N1/22;(IPC1-7):01N1/22 |
主分类号 |
G01N1/22 |
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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