QEPAS sensor for breath analysis: a behavior of pressure
The measurement of trace gases has increasingly become a key technique in healthcare and other medical applications. Quartz-enhanced photoacoustic spectroscopy (QEPAS) is a suitable method that can provide the required characteristics in such applications for a comparatively low cost and small size....
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| Veröffentlicht in: | Applied optics (2004) 2018-04, Vol.57 (10), p.C120-C127 |
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| container_end_page | C127 |
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| container_issue | 10 |
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| container_title | Applied optics (2004) |
| container_volume | 57 |
| creator | Milde, Tobias Hoppe, Morten Tatenguem, Herve Mordmüller, Mario O'Gorman, James Willer, Ulrike Schade, Wolfgang Sacher, Joachim |
| description | The measurement of trace gases has increasingly become a key technique in healthcare and other medical applications. Quartz-enhanced photoacoustic spectroscopy (QEPAS) is a suitable method that can provide the required characteristics in such applications for a comparatively low cost and small size. The quantitative detection and a low detection limit are also required by applications. In this paper, we present new results on sensing biomedically relevant gases using the on-beam QEPAS technique with some newly developed tunable high-power single-mode laser diodes based on GaSb material. The data processing and detection limit determination are done by a field programmable gate array device, as well as an automatic measurement of the resonance frequency. |
| doi_str_mv | 10.1364/AO.57.00C120 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 1559-128X |
| ispartof | Applied optics (2004), 2018-04, Vol.57 (10), p.C120-C127 |
| issn | 1559-128X 2155-3165 1539-4522 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2033382184 |
| source | Alma/SFX Local Collection; Optica Publishing Group Journals |
| subjects | Biomedical materials Data processing Field programmable gate arrays Laser beams Semiconductor lasers Trace gases Tunable lasers |
| title | QEPAS sensor for breath analysis: a behavior of pressure |
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