Preparation of low-concentration H<sub>2</sub> test gas mixtures in ambient air for calibration of H<sub>2</sub> sensors

Karbach, Niklas; Höhler, Lisa; Hoor, Peter; Bozem, Heiko; Bobrowski, Nicole; Hoffmann, Thorsten

doi:https://doi.org/10.5194/amt-17-4081-2024

Articles | Volume 17, issue 13

https://doi.org/10.5194/amt-17-4081-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-17-4081-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 13

Research article

|

10 Jul 2024

Research article |

| 10 Jul 2024

Preparation of low-concentration H₂ test gas mixtures in ambient air for calibration of H₂ sensors

Niklas Karbach, Lisa Höhler, Peter Hoor, Heiko Bozem, Nicole Bobrowski, and Thorsten Hoffmann

Supplement

https://doi.org/10.5194/amt-17-4081-2024-supplement

Data sets

Preparation of low-concentration H2 test gas mixtures in ambient air for calibration of H2 sensors N. Karbach et al. https://doi.org/10.5281/zenodo.12685043

Short summary

The system presented here can accurately generate and reproduce a stable flow of gas mixtures of known concentrations over several days using ambient air as a dilution medium. In combination with the small size and low weight of the system, this enables the calibration of hydrogen sensors in the field, reducing the influence of matrix effects on the accuracy of the sensor. The system is inexpensive to assemble and easy to maintain, which is the key to reliable measurement results.