ArticleSensors (Basel, Switzerland)2018
A Linear-Quadratic Model for the Quantification of a Mixture of Two Diluted Gases with a Single Metal Oxide Sensor.
Article in Sensors (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Dynamic Modeling of Carbon Dioxide Transport through the Skin Using a Capnometry Wristband.Sensors (Basel, Switzerland) · 2023Article
- Carbon Dioxide Sensing-Biomedical Applications to Human Subjects.Sensors (Basel, Switzerland) · 2021Review
- Development of a Tuneable NDIR Optical Electronic Nose.Sensors (Basel, Switzerland) · 2020Article
- Sniffing Out Urinary Tract Infection-Diagnosis Based on Volatile Organic Compounds and Smell Profile.Biosensors · 2020Review
- A Gas Mixture Prediction Model Based on the Dynamic Response of a Metal-Oxide Sensor.Micromachines · 2019Article
- Application of an Array of Metal-Oxide Semiconductor Gas Sensors in an Assistant Personal Robot for Early Gas Leak Detection.Sensors (Basel, Switzerland) · 2019Article
- An Ultrahigh Sensitivity Acetone Sensor Enhanced by Light Illumination.Sensors (Basel, Switzerland) · 2018Article
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Authors and funding
3 authors.
Funding
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Abstract
The aim of our work is to quantify two gases (acetone and ethanol) diluted in an air buffer using only a single metal oxide (MOX) sensor. We took advantage of the low selectivity of the MOX sensor, exploiting a dual-temperature mode. Working at two temperatures of the MOX sensitive layer allowed us to obtain diversity in the measures. Two virtual sensors were created to characterize our gas mixture. We presented a linear-quadratic mixture sensing model which was closer to the experimental data. To validate this model and the experimental protocol, we inverted the system of quadratic equations to quantify a mixture of the two gases. The linear-quadratic model was compared to the bilinear model proposed in the literature. We presented an experimental evaluation on mixtures made of a few ppm of acetone and ethanol, and we obtained a precision close to the ppm. This is an important step towards medical applications, particularly in terms of diabetes, to deliver a non-invasive measure with a low-cost device.
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