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A new type of catalytic oxygen sensor based on the measurement of hydrogen-oxygen reaction heat
Feng, T; Chen, LX; Yang, BC; Guan, YF; Ma, JP
关键词Oxygen Sensor Oxygen-hydrogen Reaction Thermal Sensing Resistor Catalysis
刊名SENSORS AND ACTUATORS B-CHEMICAL
2004-04-15
DOI10.1016/S0925-4005(03)00627-0
99期:1页:14-17
收录类别ISTP ; SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
研究领域[WOS]Chemistry ; Electrochemistry ; Instruments & Instrumentation
英文摘要A new type of catalytic oxygen sensor based on the measurement of the hydrogen-oxygen reaction heat has been constructed and evaluated. The sensor consists of thin-film platinum resistors, which constituted a Wheatstone bridge circuit, a reaction cell containing catalyst particles, a reference cell containing inert packing material, hydrogen diffusing membrane assembly, and an isothermal block. The heat liberated by the reaction increases the temperature of the reaction cell, causing an increase of resistance of the Pt resistor, and as a result, the bridge circuit produces an output signal. The reference cell and the isothermal block used reduce the influence of fluctuation of temperature and pressure of the sample gas on the base line signal. The signal of the sensor is proportional to the concentration of oxygen in the range of 1-1200 ppm. The lowest detection limit is 1 ppm. The 90% response time of the sensor is less than 5 s. The sensor is characteristic of excellent signal stability, fast response speed and high sensitivity. (C) 2003 Published by Elsevier B.V.
语种英语
WOS记录号WOS:000221398700003
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139349
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dept Micro Instrumentat & Analyt Chem, Dalian 116012, Peoples R China
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GB/T 7714
Feng, T,Chen, LX,Yang, BC,et al. A new type of catalytic oxygen sensor based on the measurement of hydrogen-oxygen reaction heat[J]. SENSORS AND ACTUATORS B-CHEMICAL,2004,99(1):14-17.
APA Feng, T,Chen, LX,Yang, BC,Guan, YF,&Ma, JP.(2004).A new type of catalytic oxygen sensor based on the measurement of hydrogen-oxygen reaction heat.SENSORS AND ACTUATORS B-CHEMICAL,99(1),14-17.
MLA Feng, T,et al."A new type of catalytic oxygen sensor based on the measurement of hydrogen-oxygen reaction heat".SENSORS AND ACTUATORS B-CHEMICAL 99.1(2004):14-17.
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