Software-switching between direct absorption and wavelength modulation spectroscopy for the investigation of ADC resolution requirements
Beitrag in einer Fachzeitschrift
Details zur Publikation
Autor(en): Lins B, Engelbrecht R, Schmauß B
Zeitschrift: → Applied Physics B-Lasers and Optics |
Verlag: Springer Verlag (Germany)
Jahr der Veröffentlichung: 2012
Band: 106
Seitenbereich: 999-1008
ISSN: 0946-2171
Sprache: Englisch
Abstract
We present a tunable diode laser spectrometer that can be software-switched between a wavelength modulation spectroscopy (WMS) operation mode and the direct absorption spectroscopy (DAS) technique on a per-scan basis. The new setup allows a direct comparison between the two techniques under equal hardware and system environment conditions. In this work, we compare the impact of analog-to-digital converter resolution for operation in WMS and DAS mode. Example concentration evaluations show that in the DAS approach, relative absorptions smaller than the least significant bit can be measured with scan averaging and FIR-filtering applied. With full resolution, both techniques show similar performance in our setup, with a slight advantage for the WMS implementation. © Springer-Verlag 2012.
FAU-Autoren / FAU-Herausgeber
| Engelbrecht, Rainer PD Dr. |
| | Lehrstuhl für Hochfrequenztechnik |
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| | | Lehrstuhl für Technische Thermodynamik |
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| Schmauß, Bernhard Prof. Dr.-Ing. |
| | Professur für Hochfrequenztechnik mit dem Schwerpunkt Optische Hochfrequenztechnik und Photonik |
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Zusätzliche Organisationseinheit(en)
→ Erlangen Graduate School in Advanced Optical Technologies |
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Zitierweisen
APA: | Lins, B., Engelbrecht, R., & Schmauß, B. (2012). Software-switching between direct absorption and wavelength modulation spectroscopy for the investigation of ADC resolution requirements. Applied Physics B-Lasers and Optics, 106, 999-1008. https://dx.doi.org/10.1007/s00340-011-4827-2 |
MLA: | Lins, Bastian, Rainer Engelbrecht, and Bernhard Schmauß. "Software-switching between direct absorption and wavelength modulation spectroscopy for the investigation of ADC resolution requirements." Applied Physics B-Lasers and Optics 106 (2012): 999-1008. |