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Titolo:
Sensor system for indoor air monitoring using semiconducting metal oxides and IR-absorption
Autore:
Frank, J; Meixner, H;
Indirizzi:
Siemens AG, Corp Technol, D-81739 Munich, Germany Siemens AG Munich Germany D-81739 Corp Technol, D-81739 Munich, Germany
Titolo Testata:
SENSORS AND ACTUATORS B-CHEMICAL
fascicolo: 1-3, volume: 78, anno: 2001,
pagine: 298 - 302
SICI:
0925-4005(20010830)78:1-3<298:SSFIAM>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
GA2O3;
Keywords:
indoor air; gas sensor; metal oxide; Ga2O3; IR-absorption; caloric effect;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
6
Recensione:
Indirizzi per estratti:
Indirizzo: Frank, J Siemens AG, Corp Technol, Otto Hahn Ring 6, D-81739 Munich, Germany Siemens AG Otto Hahn Ring 6 Munich Germany D-81739 nich, Germany
Citazione:
J. Frank e H. Meixner, "Sensor system for indoor air monitoring using semiconducting metal oxides and IR-absorption", SENS ACTU-B, 78(1-3), 2001, pp. 298-302

Abstract

A sensor system for the simultaneous monitoring Of CO2 and olfactory or explosive gases in room air is described. This system combines the functionality of semiconducting metal oxides and infrared absorption for gas detection. With the infrared radiation emitted by the heated metal oxide gas sensoran optical gas sensor for the CO2 detection is driven. Hence, the metal oxide gas sensor acts both as sensor for olfactory or explosive gases and as infrared source of the optical sensor. An experimentally validated model was set-up which describes the propagation of the emitted infrared radiation in the sensor system. Using the optical g-as sensor the detection of 1000 PPM CO2 is possible with small cross-sensitivities to reducing gases which are caused mainly by reactions of gases with the heated metal oxide gas sensor. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 16:08:50