发明名称 |
Photo-Acoustic Spectrometer Apparatus |
摘要 |
A photo acoustic detection cell ( 6 ) is located within the optical cavity ( 3 ) of a cavity enhanced absorption spectroscopy apparatus ( 3,4,5 ). When a sample in the cell ( 6 ) absorbs radiation from a pulsed radiation beam coupled into the cavity ( 3 ) pressure waves are generated that are detected by a microphone ( 9 ). A detected signal ( 10 ) output by the microphone ( 9 ) may be processed to determine a value for the concentration of an absorber in the sample.
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申请公布号 |
US2008196477(A1) |
申请公布日期 |
2008.08.21 |
申请号 |
US20060994451 |
申请日期 |
2006.06.30 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS, N.V. |
发明人 |
VAN HERPEN MAARTEN MARINUS JOHANNES WILHELMUS |
分类号 |
G01N21/00 |
主分类号 |
G01N21/00 |
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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