发明授权
US5528040A Ring-down cavity spectroscopy cell using continuous wave excitation for
trace species detection
失效
使用连续波激发的环形腔光谱单元进行痕量物种检测
- 专利标题： Ring-down cavity spectroscopy cell using continuous wave excitation for trace species detection
- 专利标题（中）： 使用连续波激发的环形腔光谱单元进行痕量物种检测
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申请号： US335052申请日： 1994-11-07
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公开(公告)号： US5528040A公开(公告)日： 1996-06-18
- 发明人: Kevin K. Lehmann
- 申请人： Kevin K. Lehmann
- 申请人地址： NJ Princeton
- 专利权人： Trustees of Princeton University
- 当前专利权人： Trustees of Princeton University
- 当前专利权人地址： NJ Princeton
- 主分类号： G01J3/42
- IPC分类号： G01J3/42 ; G01N21/39 ; G01N21/17
摘要：
An apparatus for detection and measurement of trace species in a sample gas. A ring down cavity cell is filled with the sample gas. A continuous wave laser emits radiation, which is directed from the continuous wave laser to the ring down cavity cell where it resonates. A photodetector measures radiation levels resonated by the ring down cavity cell and produces a corresponding signal. The decay rate of the ring down cavity cell is calculated from the signal produced by the photodetector and is used to determine the level of trace species in the sample gas.
公开/授权文献
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