DocumentCode :
3246098
Title :
Sensors to observe the environment
Author :
Wieser, P.H.
Author_Institution :
Inst. fuer Phys., Hohenheim Univ., Stuttgart, West Germany
fYear :
1989
fDate :
8-12 May 1989
Firstpage :
19054
Lastpage :
20515
Abstract :
Considering the state-of-the-art methods to measure gaseous and particulate air pollution constituents, the author shows that chemical sensors play a relatively insignificant role in environmental science and technology. The dominant problem consists in satisfying the requirements with respect to sensitivity, accuracy, and response time. A brief survey of chemical sensors used to detect trace gases in air is given. The application of chemical sensors for the measurement of the deposition velocity of single pollutant components seems to be of great importance, because toxic effects occur in the deposited state only. The performance of devices containing multiple sensor arrays shows that the degree of detection selectivity can be improved by using pattern-recognition techniques
Keywords :
air pollution detection and control; accuracy; air; air pollution constituents; chemical sensors; deposition velocity; detection selectivity; environmental science; pattern-recognition; response time; sensitivity; trace gases; Air pollution; Atmospheric measurements; Chemical sensors; Chemical technology; Delay; Gases; Particle measurements; Pollution measurement; Sensor arrays; Velocity measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
CompEuro '89., 'VLSI and Computer Peripherals. VLSI and Microelectronic Applications in Intelligent Peripherals and their Interconnection Networks', Proceedings.
Conference_Location :
Hamburg
Print_ISBN :
0-8186-1940-6
Type :
conf
DOI :
10.1109/CMPEUR.1989.93405
Filename :
93405
Link To Document :
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