Software-switching between direct absorption and wavelength modulation spectroscopy for the investigation of ADC resolution requirements

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: 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-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Engelbrecht, Rainer PD Dr.
Lehrstuhl für Hochfrequenztechnik
Lins, Bastian
Lehrstuhl für Technische Thermodynamik
Schmauß, Bernhard Prof. Dr.-Ing.
Professur für Hochfrequenztechnik mit dem Schwerpunkt Optische Hochfrequenztechnik und Photonik


Zusätzliche Organisationseinheit(en)
Erlangen Graduate School in Advanced Optical Technologies


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.

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Zuletzt aktualisiert 2018-09-08 um 16:23