Non-specific chemical gas sensor arrays for environmental monitoring of odour emissions: a review

Edited book (chapter)


Sohn, Jae Ho, Stuetz, Richard and Atzeni, Michael. 2010. "Non-specific chemical gas sensor arrays for environmental monitoring of odour emissions: a review." Harrison, Ronald V. (ed.) Chemical sensors: properties, performance and applications. Hauppauge, NY. United States. Nova Science Publishers. pp. 145-166
Chapter Title

Non-specific chemical gas sensor arrays for environmental monitoring of odour emissions: a review

Book Chapter CategoryEdited book (chapter)
ERA Publisher ID2797
Book TitleChemical sensors: properties, performance and applications
AuthorsSohn, Jae Ho (Author), Stuetz, Richard (Author) and Atzeni, Michael (Author)
EditorsHarrison, Ronald V.
Page Range145-166
SeriesChemistry research and applications
Chapter Number5
Number of Pages22
Year2010
PublisherNova Science Publishers
Place of PublicationHauppauge, NY. United States
ISBN9781607418979
Web Address (URL)https://www.novapublishers.com/catalog/product_info.php?products_id=10385
Abstract

Recent advances in sensor technology, signal processing and pattern recognition algorithms have led to the development of chemical sensing instruments housing one or more non-specific gas sensors. These instruments are often referred to as 'electronic noses' or 'artificial olfaction systems' since they measure a range of non-specific compounds that make up odorous emissions. Odours usually contain various odorous chemical compounds, some of which cause annoyance to local receptors. For this reason, odour measurement has often been considered more of an art than a science. Subjective sensory measurement using a human nose has been the accepted 'standard' for odour measurement. This chapter reviews the recent applications of non-specific gas sensor array technologies used for environmental monitoring of odours; including a brief history on odour measurement applications; the different types of sensors utilised in gas sensor array systems are categorised and reviewed according to their operating principles; a range of pattern recognition techniques, from simple statistical analyses to artificial neural networks, used for the purpose of odour identification and quantification is also discussed. Considerable work has already been carried out in a broad range of industries including agriculture, food, waste treatment, paper, and tannery operations. In addition, there are efforts to develop on-site or portable sensor array devices for real-time and continuous odour measurement, capitalising on the low-cost, non-invasive, operator-free advantages of non-specific chemical gas sensor array technology.

Keywordsgas sensor array; electronic nose; artificial olfaction system; odour measurement; pattern recognition measurement
ANZSRC Field of Research 2020469999. Other information and computing sciences not elsewhere classified
520203. Cognitive neuroscience
340108. Sensor technology (incl. chemical aspects)
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Byline AffiliationsDepartment of Employment, Economic Development and Innovation, Queensland
University of New South Wales
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