A Survey on Gas Sensing Technology

Clicks: 228
ID: 110511
2012
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Abstract
Sensing technology has been widely investigated and utilized for gas detection. Due to the different applicability and inherent limitations of different gas sensing technologies, researchers have been working on different scenarios with enhanced gas sensor calibration. This paper reviews the descriptions, evaluation, comparison and recent developments in existing gas sensing technologies. A classification of sensing technologies is given, based on the variation of electrical and other properties. Detailed introduction to sensing methods based on electrical variation is discussed through further classification according to sensing materials, including metal oxide semiconductors, polymers, carbon nanotubes, and moisture absorbing materials. Methods based on other kinds of variations such as optical, calorimetric, acoustic and gas-chromatographic, are presented in a general way. Several suggestions related to future development are also discussed. Furthermore, this paper focuses on sensitivity and selectivity for performance indicators to compare different sensing technologies, analyzes the factors that influence these two indicators, and lists several corresponding improved approaches.
Reference Key
liu2012sensorsa Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Xiao Liu;Sitian Cheng;Hong Liu;Sha Hu;Daqiang Zhang;Huansheng Ning;Liu, Xiao;Cheng, Sitian;Liu, Hong;Hu, Sha;Zhang, Daqiang;Ning, Huansheng;
Journal sensors
Year 2012
DOI
10.3390/s120709635
URL
https://www.mdpi.com/1424-8220/12/7/9635##stats_id
Keywords
selectivity sensitivity gas sensing methods sensing materials National Center for Biotechnology Information NCBI NLM MEDLINE pubmed abstract nih national institutes of health national library of medicine pmid:23012563 pmc3444121 doi:10.3390/s120709635 xiao liu sitian cheng huansheng ning

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