发明名称 |
Apparatus for gas concentration measuring according to gas correlation method |
摘要 |
<p>A gas concentration measuring apparatus utilizing a gas correlation method capable of measuring concentrations of a plurality of analyte gases simultaneously and at high sensitivity uses an infrared light source (2) such as an infrared semiconductor diode or a quantum cascade semiconductor laser to increase the intensity of collimated infrared light (5) and to lessen infrared light unnecessary for measurement, thereby improving the S/N ratio while achieving a rise in sensitivity. A plurality of analyte gases are simultaneously measured by means of a gas correlation filter comprising a reference gas cell (6a) filled with all of the analyte gases and a plurality of probe gas cells (6b) each individual of which is filled with all such analyte gases other than one of the analyte gases which is of its particular interest.</p> |
申请公布号 |
EP1850112(A1) |
申请公布日期 |
2007.10.31 |
申请号 |
EP20060713589 |
申请日期 |
2006.02.13 |
申请人 |
JAPAN SCIENCE AND TECHNOLOGY AGENCY |
发明人 |
KAJII, YOSHIZUMI |
分类号 |
G01N21/00;H01S5/343;G01N21/03;G01N21/35;G01N21/3518 |
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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