Articles | Volume 14, issue 1
https://doi.org/10.5194/gi-14-131-2025
https://doi.org/10.5194/gi-14-131-2025
Research article
 | 
12 Jun 2025
Research article |  | 12 Jun 2025

Humidity measurements in carbon dioxide with Sensirion SHT85 humidity sensors under simulated Martian atmospheric conditions

Andreas Lorek and Stephen Patrick Garland

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Cited articles

Anon: Technical Regulations Basic Documents No. 2 Volume I – General Meteorological Standards and Recommended Practices, WMO, 83 pp., https://repository.oceanbestpractices.org/bitstream/handle/11329/111/wmo_49-v1-2012_en.pdf?sequence=1&isAllowed=y (last access: 28 May 2025), 2012. 
Anon: Transitioning from SHT7x to SHT85, Sensirion AG, 8 pp., https://sensirion.com/media/documents/EE6A7C63/657ABB2E/HT_Transition_Guide_SHT7x_to_SHT85.pdf (last access: 28 May 2025), 2018. 
Anon: Datasheet SHT85, Sensirion AG, 23 pp., https://sensirion.com/media/documents/4B40CEF3/640B2346/Sensirion_Humidity_Sensors_SHT85_Datasheet.pdf (last access: 28 May 2025), 2021. 
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Short summary
Humidity sensors that function under extreme conditions are needed in experimental chambers as well as for humidity measurements on Mars. Such a sensor was already used in a chamber at the German Aerospace Center and is well characterized; however this sensor is no longer in production and has been replaced by a new generation, requiring verification of the new sensor under extreme conditions. The results show that the new sensor is suitable for measurements under Martian atmospheric conditions.
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