Preparation of low-concentration H2 test gas mixtures in ambient air for calibration of H2 sensors
Niklas Karbach,
Lisa Höhler,
Peter Hoor
et al.
Abstract:Abstract. Using electrochemical gas sensors for quantitative measurements of trace gas components in ambient air introduces several challenges, of which interference, drift and aging of the sensor are the most significant. Frequent and precise calibration as well as thorough characterization of the sensor helps to achieve reliable and repeatable results. We therefore propose the use of a simple, lightweight and inexpensive setup to produce hydrogen calibration gases with precisely known concentrations in ambie… Show more
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