Temat: laser absorption spectroscopy - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Fast optoelectronic sensor of water concentration
Autorzy:: Nowak, J. L.
Magryta, P.
Stacewicz, T.
Kumala, W.
Malinowski, S. P.
Powiązania:: https://bibliotekanauki.pl/articles/174478.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: humidity
hygrometer
laser spectroscopy
absorption
Opis:: A prototype optoelectronic hygrometer, based on absorption of laser light tuned to a specific rovibronic absorption line of H2O at 1364.68961 nm is described. Target application is meteorology, in particular precise and fast measurements of small-scale humidity fluctuations in turbulent atmospheric flows. Tests of the prototype instrument performed in the atmospheric boundary layer have proven the advantage of this optoelectronic sensor over typical, commercially available UV hygrometers designed for similar applications.
Źródło:: Optica Applicata; 2016, 46, 4; 607-618
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Reduction of optical noise in near-infrared range laser hygrometry
Autorzy:: Stacewicz, Tadeusz
Winkowski, Mateusz
Kuk, Natalia
Powiązania:: https://bibliotekanauki.pl/articles/2204345.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: hygrometer
laser
absorption spectroscopy
optical interference
Opis:: A contactless laser hygrometer based on light absorption by H2O molecules at 1392.5 nm is described. However, measurement results can be affected by optical noise when applied to an atmospheric tunnel or glass cuvette. The noises (occurring in the form of periodic fringes in the recorded spectrum) come from unexpected interference of the light beams reflected from surfaces of the windows or other optical elements. The method of their suppression is described in this article. It is based on wavelength modulation and signal averaging over the fringes period. Also, an experiment confirming the usefulness of this method is described here.
Źródło:: Metrology and Measurement Systems; 2023, 30, 1; 169--181
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

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