Journal
APPLIED OPTICS
Volume 60, Issue 15, Pages C55-C59Publisher
OPTICAL SOC AMER
DOI: 10.1364/AO.415236
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Funding
- European Commission [12128 BRICS/01QE1802B]
- Bundesministerium fur Bildung und Forschung [13N13822, 13N13823, 13N13824]
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Molecular gases play a crucial role in various industries, and measuring trace gases has become a key technique. QEPAS is an appropriate method for providing low detection limits, and the size of the sensor unit is crucial for mobile implementation.
Molecular gases are highly relevant in healthcare, production control, safety, and environmental monitoring. They often appear in small concentrations. The measurement of trace gases has increasingly become a key technique in those domains. Quartz-enhanced photoacoustic spectroscopy (QEPAS) is a suitable method that can provide the required lowdetection limits in such applications at comparatively lowcost and small size. For mobile implementation, the size of an entire sensor unit matters. In this paper, we present a QEPAS sensor that fits into a standard butterfly package, its characterization, and its application on CH4 andCO(2). (C) 2021 Optical Society of America
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