ERRORS IN SPECTRAL ABSORPTION MEASUREMENTS DUE TO ABSORBING SPECIES IN THE $ATMOSPHERE^{*}$
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Date
1963
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Publisher
Ohio State University
Abstract
“The accuracy of spectrosopic absorptance measurements can be seriously affected by the presence of absorbing species in the atmosphere anywhere in the optical train The error is due to the baud-pass nature of a monochromator and is just as severe when a double beam spectrometer is $used^{1}$ as when a single-beam spectrometer is used. Using the method of $Sakei^{2}$ for the calculation of the integrated absorptance at a pair of over- absorption lapping absorption lines, we have calculated the error in the measured integrated absorptance of a sample gas which contains $H_{2}O$ or $CO_{2}$. A number of experimentally important cases have been considered with the object of correcting the measured absorptance. The calculations are compared with experiment. 255 (1960). “
Description
$^{1}$H. Sakei and F Stauffer, J. Opt. Soc. Am. 53, 507, MA16 (1963). $^{*}$This work was supported in part by NASA Lewis Research Center and by the Advanced Research Projects Agency. $^{1}$D. E. Burch, D. Gryvnak, and D Williams, Report No. II, Contract AF 19(604)-2633, pp. 5-9. AFCRL-
Author Institution: The Warner \& Swasey Company
Author Institution: The Warner \& Swasey Company