☆ 4.4 Article

Low-power temperature-independent CMOS measurement circuits for resistive gas sensors

INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS (2023)

Pollution and health: a progress update

Richard Fuller et al.

Summary: The Lancet Commission on pollution and health reported that pollution was responsible for 9 million premature deaths in 2015, making it the world's largest environmental risk factor for disease and premature death. Updated data from 2019 shows that pollution is still responsible for approximately 9 million deaths per year, with reductions in some types of pollution offset by increases in others. Despite efforts, little progress has been made in addressing pollution, particularly in low-income and middle-income countries.

LANCET PLANETARY HEALTH (2022)

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Review Chemistry, Physical

Recent advances in energy-saving chemiresistive gas sensors: A review

Sanjit Manohar Majhi et al.

Summary: This paper presents a discussion on types of gas sensors and energy-saving strategies, focusing on self-heated gas sensors, MEMS-based gas sensors, and room temperature operated flexible/wearable sensors, as well as their applications in environmental monitoring.

NANO ENERGY (2021)

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Proceedings Paper Engineering, Electrical & Electronic

An Interfacing Circuit for Differential Measurement of Chalcogenide-Based Resistive Gas Sensors

J. P. Goyret et al.

Summary: The proposed circuit is capable of biasing and reading chalcogenide-based resistive gas sensors with low power consumption, a wide range of input sensing resistors, and possibility to operate under non-controlled ambient temperature. Results indicate that the circuit can read sensing resistances between 2.4 M Omega and 100 M Omega with a measurement uncertainty of 1%, with the noise of the circuit being the limiting factor of measurement accuracy. At a sensing resistance of 50 M Omega, the measurement uncertainty is below 0.05%.

2021 ARGENTINE CONFERENCE ON ELECTRONICS (CAE 2021) (2021)

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Review Chemistry, Analytical