Development of high temperature gas sensor technology

Gary W. Hunter, Liang Yu Chen, Philip G. Neudeck, Dak Knight, C. C. Liu, Q. H. Wu, H. J. Zhou

研究成果: 雜誌貢獻會議論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

The measurement of engine emissions is important for their monitoring and control. However, the ability to measure these emissions in-situ is limited. We are developing a family of high temperature gas sensors which are intended to operate in harsh environments such as those in an engine. The development of these sensors is based on progress in two types of technology: 1) The development of SiC-based semiconductor technology. 2) Improvements in micromachining and microfabrication technology. These technologies are being used to develop point-contact sensors to measure gases which are important in emission control especially hydrogen, hydrocarbons, nitrogen oxides, and oxygen. The purpose of this paper is to discuss the development of this point-contact sensor technology. The detection of each type of gas involves its own challenges in the fields of materials science and fabrication technology. Of particular importance is sensor sensitivity, selectivity, and stability in long-term, high temperature operation. An overview is presented of each sensor type with an evaluation of its stage of development. It is concluded that this technology has significant potential for use in engine applications but further development is necessary.

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期刊American Society of Mechanical Engineers (Paper)
出版狀態已出版 - 1997
事件Proceedings of the 1997 International Gas Turbine & Aeroengine Congress & Exposition - Orlando, FL, USA
持續時間: 2 6月 19975 6月 1997

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