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Keywords = electronic nose signal processing chip

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34 pages, 3007 KiB  
Review
Towards a Chemiresistive Sensor-Integrated Electronic Nose: A Review
by Shih-Wen Chiu and Kea-Tiong Tang
Sensors 2013, 13(10), 14214-14247; https://doi.org/10.3390/s131014214 - 22 Oct 2013
Cited by 208 | Viewed by 22894
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 [...] Read more.
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. Full article
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