☆ 4.4 Article

Canine-inspired Unidirectional Flows for Improving Memory Effects in Machine Olfaction

INTEGRATIVE AND COMPARATIVE BIOLOGY (2023)

Acceleration and drift reduction of MOX gas sensors using active sigma-delta controls based on dielectric excitation

N. Sola-Penaftel et al.

Summary: The objective of this study is to improve the response time of MOX gas sensors by applying a closed-loop control based on dielectric excitation. This control method implements a feedback loop that keeps the sensor reactance constant by modulating the temperature. The required fast temperature switching is achieved on MEMS microhotplates.

SENSORS AND ACTUATORS B-CHEMICAL (2022)

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Article Multidisciplinary Sciences

Sniffing speeds up chemical detection by controlling air-flows near sensors

Thomas L. Spencer et al.

Summary: Sniffing at different rates influences odor detection efficiency, with fast sniffing enabling quick recognition but also increasing noise. A slower sniff increases signal amplitude but delays signal transmission. Natural variation in sniff frequency among animals may inspire the design of devices that can adjust sniffing frequency according to different odors.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Analytical