A diode-laser spectrometer for measuring ortho/para composition of water vapor

P. O. Kapralov, V. G. Artemov, A. M. Makurenkov, V. I. Tikhonov, A. A. Volkov

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A diode laser spectrometer, which is ment for recording ortho-and paracomposition of water vapor in gas mixtures, is described. The studied mixture is probed by infrared radiation at frequencies of the resonance absorptions of ortho-and paramolecules of water (λ ≈ 1.85 μ m). The recording rate of spectral ortho-and paralines is 2 Hz, and the ortho/para composition is calculated in real time with respect to their integrated intensities. An accuracy of 1% is ensured in a 0.01- to 20-Torr partial pressure range for water vapor and in a 0- to 700-Torr partial pressure range for the buffer gas.

Original languageEnglish
Pages (from-to)894-897
Number of pages4
JournalInstruments and Experimental Techniques
Volume51
Issue number6
DOIs
Publication statusPublished - Nov 2008
Externally publishedYes

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