Open photoacoustic cell for concentration measurements in rapidly flowing gas

High temporal resolution concentration measurements in rapid gas flows pose a serious challenge for most analytical instruments. The interaction of such flows with solid surfaces can generate excessive aero-acoustic noise making the application of the photoacoustic detection method seemingly impossi...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Fekete János
Torma Péter
Szabó Anna
Balogh Miklós
Horváth Csaba
Weidinger Tamás
Szabó Gábor
Bozóki Zoltán
Dokumentumtípus: Cikk
Megjelent: 2023
Sorozat:PHOTOACOUSTICS 30
Tárgyszavak:
doi:10.1016/j.pacs.2023.100469

mtmt:33681855
Online Access:http://publicatio.bibl.u-szeged.hu/27004
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520 3 |a High temporal resolution concentration measurements in rapid gas flows pose a serious challenge for most analytical instruments. The interaction of such flows with solid surfaces can generate excessive aero-acoustic noise making the application of the photoacoustic detection method seemingly impossible. Yet, the fully open photoacoustic cell (OC) has proven to be operable even when the measured gas flows through it at a velocity of several m/s. The OC is a slightly modified version of a previously introduced OC based on the excitation of a combined acoustic mode of a cylindrical resonator. The noise characteristics and analytical performance of the OC are tested in an anechoic room and under field conditions. Here we present the first successful application of a sampling-free OC for water vapor flux measurements. 
650 4 |a Fizikai tudományok 
700 0 1 |a Torma Péter  |e aut 
700 0 1 |a Szabó Anna  |e aut 
700 0 1 |a Balogh Miklós  |e aut 
700 0 1 |a Horváth Csaba  |e aut 
700 0 1 |a Weidinger Tamás  |e aut 
700 0 1 |a Szabó Gábor  |e aut 
700 0 1 |a Bozóki Zoltán  |e aut 
856 4 0 |u http://publicatio.bibl.u-szeged.hu/27004/1/Fekete_et_al_2023.pdf  |z Dokumentum-elérés