Method for calibrating a spectrograph for gaseous samples
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United States of America Patent
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Aug 23, 1994
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N/A
app pub date -
Dec 3, 1992
filing date -
Dec 3, 1992
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Abstract
A method for field calibrating a system adapted for spectrographic analysis of gaseous substances. The method uses an easily available gas, for example ambient air, thereby providing for field calibration of the system without the inconvenience of using a purified noble gas and a pre-measured calibration gas mixture. During calibration, spectrograms from the easily available gas are generated by the system at various number density levels of the gas. Information from the spectrograms is then used in setting an operating parameter of the system.
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