发明名称 |
Folded optical path gas analyzer with cylindrical chopper |
摘要 |
The disclosed gas analyzer (10) provides two separate folded optical paths (16 and 18) from a single source (12) to a single detector array (14) via a polychromatic filter (26). One optical path (16) passes through a sample gas chamber (24) containing a gas to be analyzed and the other path (18) passes through a reference chamber (30) containing a reference gas. On each optical path (16 or 18), radiation from the source (12) is collected by upstream optics (22 or 28) to form a converging beam (16b, c or 18b, c), thereby reducing or eliminating the need for collection optics at the detector array (14).
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申请公布号 |
US5731583(A) |
申请公布日期 |
1998.03.24 |
申请号 |
US19960606371 |
申请日期 |
1996.02.23 |
申请人 |
OHMEDA INC. |
发明人 |
BAILEY, WILLIAM D.;PATTON, CRAIG A. |
分类号 |
G01N21/27;G01N21/35;G01N21/59;(IPC1-7):G01J21/35 |
主分类号 |
G01N21/27 |
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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