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Article

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Published version

Publication date

2020-12-17

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cc-by (c) Dirau, Christian et al., 2020
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/201841

Revisiting Colorimetric Gas Sensors: Compact, Versatile and Cost-Effective

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https://doi.org/10.3390/proceedings2020056020

Abstract

We report on an inexpensive and very selective gas sensor implemented by simply combining colorimetric indicators casted on top of acetate-based transparent tape, with a commercial microchip adapted here to measure optical reflectance. This sensor can be easily reproduced (leading to quantitatively consistent results), refreshed and reconfigured to sense different target gases replacing only the colorimetric tape. The device may either work as sensor (CO2 and NH3) or dosimeter (Formaldehyde) depending on the targeted gas.

Subject

Colorimetria, Detectors òptics

Subject (English)

Colorimetry, Optical detectors

Citation

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Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)

Citation

DIRAU, Christian, et al. Revisiting Colorimetric Gas Sensors: Compact, Versatile and Cost-Effective. MDPI Proceedings. 2020. Vol. 56, num. 1, pags. 1-4. ISSN 2504-3900. [consulted: 14 of August of 2026]. Available at: https://hdl.handle.net/2445/201841

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