Metal oxide gas sensor array for air qualitiy monitoring

被引:1
|
作者
Wöllenstein, J [1 ]
Böttner, H [1 ]
机构
[1] Fraunhofer Inst Phys Messtech, D-79110 Freiburg, Germany
来源
TECHNISCHES MESSEN | 2004年 / 71卷 / 05期
关键词
metal oxide gas sensors; sensor array; thin film technology; air quality control; application measurements;
D O I
10.1524/teme.71.5.305.33121
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Two novel silicon-based sensor arrays for on-line air quality monitoring are described, the first one based on films deposited onto bulk silicon wafers and the second one a novel micromachined device for low power consumption. The micromachined version reduces the power consumption from 1.6 W to 0.26 W at 350 degreesC working temperature. The sensing elements (Cr1.8Ti0.2O3+z, ZnO, SnO2, WO3, V2O5) examined in the arrays include four different metal oxides deposited by thin film technologies. The measured responses in lab and application tests provide patterns which correlate with the air quality and are thus appropriate for an on-line air quality monitoring.
引用
收藏
页码:305 / 310
页数:6
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