发明名称 |
Measuring apparatus for the determination of the particulates content of exhaust gases |
摘要 |
The particulates content of exhaust gases is determined by a sampling device connected to the exhaust supply line. The particulates in the exhaust gases are deposited onto a gas-permeable filter material and the particulates determined by light reflected from the filter material. A constant differential exhaust gas pressure is maintained and a predetermined sample volume per time unit is metered to the filter material. The total cross-section of the exhaust-gas flow through the measuring device is maintained constant. The sampling is taken in short consecutive intervals at a rate such that the characteristics of dynamic changes in the particulates content of the exhaust gas can be determined.
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申请公布号 |
US4406155(A) |
申请公布日期 |
1983.09.27 |
申请号 |
US19810296834 |
申请日期 |
1981.08.27 |
申请人 |
LIST, HANS |
发明人 |
KRACHLER, WALTER;SCHACHNER, BRUNO |
分类号 |
G01N21/59;F01N7/00;G01N1/02;G01N1/22;G01N1/24;G01N15/06;G01N21/47;(IPC1-7):G01N1/22 |
主分类号 |
G01N21/59 |
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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