Trace gases detection by photoacoustic technique based on a lineal chirp excitation scheme
We present a new photoacoustic gas-trace measurement setup, based on a chirped optical chopper. This method combines features of the resonant and pulsed techniques. To show the advantages of this setup, we carried out a comparison with the resonant method in samples of NO2 contained in a one-dimensi...
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| Formato: | Artículo publishedVersion |
| Lenguaje: | Español |
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FIUBA
2018
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| Acceso en línea: | https://elektron.fi.uba.ar/elektron/article/view/34 https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=34_oai |
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I28-R145-34_oai2026-02-11 Carreño Romano, Carlos Perez Fogwill, German Santiago, Guillermo D. Gonzalez, Martin G. 2018-05-17 We present a new photoacoustic gas-trace measurement setup, based on a chirped optical chopper. This method combines features of the resonant and pulsed techniques. To show the advantages of this setup, we carried out a comparison with the resonant method in samples of NO2 contained in a one-dimensional acoustic resonator. The results show the chirped technique allows carrying out short-term acquisitions with good signal-to-noise ratio. En este trabajo se presenta un nuevo esquema de medición para espectroscopía fotoacústica de gases traza basado en un esquema de excitación up-chirp. Esta forma combina las ventajas de los esquemas resonante y pulsado. Para mostrar el potencial de esta técnica se la comparó con un esquema de excitación resonante sobre la medición de muestras de dióxido de nitrógeno en aire contenidas en una resonador acústico de alumnio. Los resultados mostraron que la técnica chirp permite realizar mediciones de corta duración con muy buena relación señal a ruido. application/pdf text/html https://elektron.fi.uba.ar/elektron/article/view/34 10.37537/rev.elektron.2.1.34.2018 spa FIUBA https://elektron.fi.uba.ar/elektron/article/view/34/36 https://elektron.fi.uba.ar/elektron/article/view/34/146 Derechos de autor 2018 Martin Gonzalez Elektron Journal; Vol. 2 No. 1 (2018); 7-11 Revista Elektron; Vol. 2 Núm. 1 (2018); 7-11 Revista Elektron; v. 2 n. 1 (2018); 7-11 2525-0159 2525-0159 Photoacoustic spectroscopy trace gases chirp Espectroscopía fotoacústica gases traza chirp Trace gases detection by photoacoustic technique based on a lineal chirp excitation scheme Detección de gases traza por técnica fotoacústica basada en un esquema de excitación chirp lineal info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=34_oai |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-145 |
| collection |
Repositorio Digital de la Universidad de Buenos Aires (UBA) |
| language |
Español |
| orig_language_str_mv |
spa |
| topic |
Photoacoustic spectroscopy trace gases chirp Espectroscopía fotoacústica gases traza chirp |
| spellingShingle |
Photoacoustic spectroscopy trace gases chirp Espectroscopía fotoacústica gases traza chirp Carreño Romano, Carlos Perez Fogwill, German Santiago, Guillermo D. Gonzalez, Martin G. Trace gases detection by photoacoustic technique based on a lineal chirp excitation scheme |
| topic_facet |
Photoacoustic spectroscopy trace gases chirp Espectroscopía fotoacústica gases traza chirp |
| description |
We present a new photoacoustic gas-trace measurement setup, based on a chirped optical chopper. This method combines features of the resonant and pulsed techniques. To show the advantages of this setup, we carried out a comparison with the resonant method in samples of NO2 contained in a one-dimensional acoustic resonator. The results show the chirped technique allows carrying out short-term acquisitions with good signal-to-noise ratio. |
| format |
Artículo publishedVersion |
| author |
Carreño Romano, Carlos Perez Fogwill, German Santiago, Guillermo D. Gonzalez, Martin G. |
| author_facet |
Carreño Romano, Carlos Perez Fogwill, German Santiago, Guillermo D. Gonzalez, Martin G. |
| author_sort |
Carreño Romano, Carlos |
| title |
Trace gases detection by photoacoustic technique based on a lineal chirp excitation scheme |
| title_short |
Trace gases detection by photoacoustic technique based on a lineal chirp excitation scheme |
| title_full |
Trace gases detection by photoacoustic technique based on a lineal chirp excitation scheme |
| title_fullStr |
Trace gases detection by photoacoustic technique based on a lineal chirp excitation scheme |
| title_full_unstemmed |
Trace gases detection by photoacoustic technique based on a lineal chirp excitation scheme |
| title_sort |
trace gases detection by photoacoustic technique based on a lineal chirp excitation scheme |
| publisher |
FIUBA |
| publishDate |
2018 |
| url |
https://elektron.fi.uba.ar/elektron/article/view/34 https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=34_oai |
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