Towards a Chemiresistive Sensor-integrated Electronic Nose: a Review

Overview

Journal Sensors (Basel)

Publisher MDPI

Specialty Biotechnology

Date 2013 Oct 25

PMID 24152879

Citations 38

Authors

Shih-Wen Chiu

Kea-Tiong Tang

Affiliations

Soon will be listed here.

Abstract

Electronic noses have potential applications in daily life, but are restricted by their bulky size and high price. This review focuses on the use of chemiresistive gas sensors, metal-oxide semiconductor gas sensors and conductive polymer gas sensors in an electronic nose for system integration to reduce size and cost. The review covers the system design considerations and the complementary metal-oxide-semiconductor integrated technology for a chemiresistive gas sensor electronic nose, including the integrated sensor array, its readout interface, and pattern recognition hardware. In addition, the state-of-the-art technology integrated in the electronic nose is also presented, such as the sensing front-end chip, electronic nose signal processing chip, and the electronic nose system-on-chip.

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