发明名称 |
Kvantitativ avbildning av gasemissioner utnyttjande optisk teknik |
摘要 |
A method for quantitative imaging of gas emissions utilizing optical techniques combining gas correlation techniques with thermal background radiation or gas self-emission radiation is presented. A simultaneous recording of images with and without filtering through a gas-filled cell is utilized for the identification of a selected gas. A new calibration method provides the display of the integrated gas concentration spatially resolved in the generated final image. The procedure includes methods for a correct subtraction of the zero level, consisting of self-radiation from the dual-image camera device including the as correlation cell and electronic offset, and for the calculation of the specific absorption as a function of the difference temperature between the background and the gas emission. |
申请公布号 |
SE9904836(D0) |
申请公布日期 |
1999.12.28 |
申请号 |
SE19990004836 |
申请日期 |
1999.12.28 |
申请人 |
JONAS SANDSTEN;PETTER WEIBRING;HANS EDNER;SUNE SVANBERG |
发明人 |
JONAS *SANDSTEN;PETTER *WEIBRING;HANS *EDNER;SUNE *SVANBERG |
分类号 |
G01N21/35;(IPC1-7):G01N/ |
主分类号 |
G01N21/35 |
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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