Fluorescent gas analyzer
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United States of America Patent
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Apr 7, 1981
Grant Date -
N/A
app pub date -
Jun 25, 1979
filing date -
Jun 25, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fluorescent gas analyzer that provides a DC output signal that is proportional to the concentration of a given gas that fluoresces within a reaction cell over a predetermined interval is disclosed. The analyzer includes a detector combination and a compensation circuit that prevent the output signal from being affected by scattered excitation energy detected by the fluorescence detector or by variations in the excitation energy. The analyzer is particularly adapted for detecting fluorescence from SO.sub.2 that is excited by UV radiation.
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