发明名称 |
PHOTO-ACOUSTIC SPECTROMETER APPARATUS |
摘要 |
<p>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.</p> |
申请公布号 |
WO2007004168(A1) |
申请公布日期 |
2007.01.11 |
申请号 |
WO2006IB52198 |
申请日期 |
2006.06.30 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;VAN HERPEN, MAARTEN |
发明人 |
VAN HERPEN, MAARTEN |
分类号 |
G01N21/39;G01J3/433;G01N29/24;H01S3/139 |
主分类号 |
G01N21/39 |
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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