Dynamic reconstruction of a calibration state of an absorption spectrometer
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United States of America Patent
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Jun 7, 2016
Grant Date -
Sep 11, 2014
app pub date -
Apr 28, 2014
filing date -
Oct 21, 2010
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Abstract
A reference harmonic absorption curve of a laser absorption spectrometer can have a reference curve shape derived from 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. 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. 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.
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