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原文传递 Advanced Sensor Technologies for Next-Generation Vehicles

题名：	Advanced Sensor Technologies for Next-Generation Vehicles
作者：	Sheen, S. H.; Chien, H. T.; Gopalsami, N.; Jendrzejczyk, J. A.; Raptis, A. C.
关键词：	Sensors##Vehicles##Acoustic waves##Air pollution control##Design##Detection##Emission##Exhaust gases##Hydrocarbons##Internal combustion engines##Ion mobility spectrometry##Moisture content##Monitoring##Nitrogen oxides##Organic compounds##Performance evaluation##Technology assessment##
摘要：	This report summarizes the development of automobile emissions sensors at Argonne National Laboratory. Three types of sensor technologies, i.e., ultrasound, microwave, and ion-mobility spectrometry (IMS), were evaluated for engine-out emissions monitoring. Two acoustic sensor technologies, i.e., surface acoustic wave and flexural plate wave, were evaluated for detection of hydrocarbons. The microwave technique involves a cavity design and measures the shifts in resonance frequency that are a result of the presence of trace organic compounds. The IMS technique was chosen for further development into a practical emissions sensor. An IMS sensor with a radioactive (sup 63)Ni ion source was initially developed and applied to measurement of hydrocarbons and NO(sub x) emissions. For practical applications, corona and spark discharge ion sources were later developed and applied to NO(sub x) emission measurement. The concentrations of NO(sub 2) in dry nitrogen and in a typical exhaust gas mixture are presented. The sensor response to moisture was evaluated, and a cooling method to control the moisture content in the gas stream was examined. Results show that the moisture effect can be reduced by using a thermoelectric cold plate. The design and performance of a laboratory prototype sensor are described.
总页数：	31
报告类型：	科技报告