发明名称 |
Dynamic reconstruction of a calibration state of an absorption spectrometer |
摘要 |
<p>A reference harmonic absorption curve of a laser absorption spectrometer, which can include a tunable or scannable laser light source and a detector, can have a reference curve shape and can include a first, second, or higher order harmonic signal of a reference signal generated by the detector in response to light passing from the laser light source through a reference gas or gas mixture. The reference gas or gas mixture can include one or more of a target analyte and a background gas expected to be present during analysis of the target analyte. The reference harmonic absorption curve can have been determined for the laser absorption spectrometer in a known or calibrated state. A test harmonic absorption curve having a test curve shape is compared with the reference harmonic absorption curve to detect a difference between the test curve shape and the reference curve shape that exceeds a predefined allowed deviation and therefore indicates a change in an output of the laser light source relative to the known or calibrated state. One or more operating and/or analytical parameters of the laser absorption spectrometer are adjusted to correct the test curve shape to reduce the difference between the test curve shape and the reference curve shape.</p> |
申请公布号 |
AU2011316820(B2) |
申请公布日期 |
2015.07.23 |
申请号 |
AU20110316820 |
申请日期 |
2011.10.21 |
申请人 |
SPECTRASENSORS, INC. |
发明人 |
LIU, XIANG;LEWISON, JOHN;JI, WENHAI;FEITISCH, ALFRED |
分类号 |
G01N21/35;G01N21/31;G01N21/39;G01N21/61 |
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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