Articles | Volume 12, issue 1
https://doi.org/10.5194/jsss-12-61-2023
https://doi.org/10.5194/jsss-12-61-2023
Regular research article
 | 
02 Feb 2023
Regular research article |  | 02 Feb 2023

Real-time active-gas imaging of small gas leaks

Max Bergau, Thomas Strahl, Benjamin Scherer, and Jürgen Wöllenstein

Related authors

Resonant photoacoustic cells for laser-based methane detection
Katrin Schmitt, Mara Sendelbach, Christian Weber, Jürgen Wöllenstein, and Thomas Strahl
J. Sens. Sens. Syst., 12, 37–44, https://doi.org/10.5194/jsss-12-37-2023,https://doi.org/10.5194/jsss-12-37-2023, 2023
Short summary
Low-power sensor node for the detection of methane and propane
Benedikt Bierer, Dario Grgić, Olena Yurchenko, Laura Engel, Hans-Fridtjof Pernau, Martin Jägle, Leonhard Reindl, and Jürgen Wöllenstein
J. Sens. Sens. Syst., 10, 185–191, https://doi.org/10.5194/jsss-10-185-2021,https://doi.org/10.5194/jsss-10-185-2021, 2021
Short summary
Impact of particle size and morphology of cobalt oxide on the thermal response to methane examined by thermal analysis
Olena Yurchenko, Hans-Fridtjof Pernau, Laura Engel, Benedikt Bierer, Martin Jägle, and Jürgen Wöllenstein
J. Sens. Sens. Syst., 10, 37–42, https://doi.org/10.5194/jsss-10-37-2021,https://doi.org/10.5194/jsss-10-37-2021, 2021
Short summary
Comparison of laser-based photoacoustic and optical detection of methane
Thomas Strahl, Johannes Herbst, Eric Maier, Sven Rademacher, Christian Weber, Hans-Fridtjof Pernau, Armin Lambrecht, and Jürgen Wöllenstein
J. Sens. Sens. Syst., 10, 25–35, https://doi.org/10.5194/jsss-10-25-2021,https://doi.org/10.5194/jsss-10-25-2021, 2021
Short summary
Inline quality monitoring of diesel exhaust fluid (AdBlue) by using the 3ω method
Ralf E. Bernhardsgrütter, Christoph J. Hepp, Martin Jägle, Hans-Fridtjof Pernau, Katrin Schmitt, and Jürgen Wöllenstein
J. Sens. Sens. Syst., 10, 5–12, https://doi.org/10.5194/jsss-10-5-2021,https://doi.org/10.5194/jsss-10-5-2021, 2021
Short summary

Related subject area

Sensor principles and phenomena: Optical and infrared sensors
Non-invasive blood sugar detection by cost-effective capacitance spectroscopy
Shazzad Rassel, Md Rejvi Kaysir, Abdulrahman Aloraynan, and Dayan Ban
J. Sens. Sens. Syst., 12, 21–36, https://doi.org/10.5194/jsss-12-21-2023,https://doi.org/10.5194/jsss-12-21-2023, 2023
Short summary
Resonant photoacoustic cells for laser-based methane detection
Katrin Schmitt, Mara Sendelbach, Christian Weber, Jürgen Wöllenstein, and Thomas Strahl
J. Sens. Sens. Syst., 12, 37–44, https://doi.org/10.5194/jsss-12-37-2023,https://doi.org/10.5194/jsss-12-37-2023, 2023
Short summary
Fabrication of integrated polysilicon waveguides for mid-infrared absorption sensing
Gerald Stocker, Cristina Consani, Pooja Thakkar, Clement Fleury, Andreas Tortschanoff, Khaoula-Farah Ourak, Gerald Pühringer, Reyhaneh Jannesari, Parviz Saeidi, Elmar Aschauer, Ulf Bartl, Christoph Kovatsch, Thomas Grille, and Bernhard Jakoby
J. Sens. Sens. Syst., 11, 225–231, https://doi.org/10.5194/jsss-11-225-2022,https://doi.org/10.5194/jsss-11-225-2022, 2022
Short summary
Near-infrared LED system to recognize road surface conditions for autonomous vehicles
Hongyi Zhang, Shéhérazade Azouigui, Rabia Sehab, and Moussa Boukhnifer
J. Sens. Sens. Syst., 11, 187–199, https://doi.org/10.5194/jsss-11-187-2022,https://doi.org/10.5194/jsss-11-187-2022, 2022
Short summary
Characterization of specular freeform surfaces from reflected ray directions using experimental ray tracing
Tobias Binkele, David Hilbig, Mahmoud Essameldin, Thomas Henning, Friedrich Fleischmann, and Walter Lang
J. Sens. Sens. Syst., 10, 261–270, https://doi.org/10.5194/jsss-10-261-2021,https://doi.org/10.5194/jsss-10-261-2021, 2021
Short summary

Cited articles

Aldhafeeri, T., Tran, M.-K., Vrolyk, R., Pope, M., and Fowler, M.: A Review of Methane Gas Detection Sensors: Recent Developments and Future Perspectives, Inventions, 5, 28, https://doi.org/10.3390/inventions5030028, 2020. 
Bergau, M.: Visualization of a 40ml/min methane leak using an active OGI camera, TIB AV-Portal [video], https://doi.org/10.5446/59364, 2022. 
Bronkhorst®: Instruction Manual EL-FLOW®Prestige, Doc. no.: 9.17.084 rev. R, https://www.bronkhorst.com/getmedia/e6957a9f-8452-4005-b4f7-993ca67624e6/917084-Manual-EL-FLOW-Prestige.pdf (last access: 18 January 2023), 2022. 
Gordon, I. E., Rothman, L. S., Hargreaves, R. J., et al.: The HITRAN2020 molecular spectroscopic database, J. Quant. Spectrosc. Ra., 277, 107949, https://doi.org/10.1016/j.jqsrt.2021.107949, 2022. 
Iseki, T., Tai, H., and Kimura, K.: A portable remote methane sensor using a tunable diode laser, Meas. Sci. Technol., 11, 594–602, https://doi.org/10.1088/0957-0233/11/6/302, 2000.  
Download
Short summary
Imaging of greenhouse gases is of great interest due to global warming. A spectroscopic method, using an active illumination of the scene, is presented. It allows for imaging and concentration measurements of much smaller gas plumes and leaks than current state-of-the-art gas cameras (optical gas imaging cameras). A real-time camera is realized and validated using known methane concentrations.