机构:Institute for Applied Physics, University, Gießen, Gießen, D-6300
KOHL, D
机构:
[1] Institute for Applied Physics, University, Gießen, Gießen, D-6300
来源:
PHYSICA SCRIPTA
|
1993年
/
T49B卷
关键词:
D O I:
10.1088/0031-8949/1993/T49B/028
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
Solid state gas sensor devices exhibit a high sensitivity in the ppm range and can be applied for the detection of noxious or explosive gases and vapours in air. Detection principles are outlined and examples for a spectroscopical characterization of gas-surface interactions are given. An improved specificity is attained by the use of sensor arrays and a computational evaluation, e.g. by a neural network. Recent realizations of such multisensor arrangements are discussed.