Early detection of fires in electrical installations by thermally modulated SnO2/additive-multi sensor arrays

In this work, a setup for generation and analysis of pyrolysis gases, which can operate multi gas sensor arrays of different SnO2/Additive admixtures, is introduced. The gas sensor arrays are thermo-cyclically operated and are investigated towards their characteristic features of the resulting condu...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2015-10, Vol.217, p.36-40
Main Authors: Knoblauch, Jens, Illyaskutty, Navas, Kohler, Heinz
Format: Article
Language:English
Subjects:
Additives
Dynamic conductance
Fire detection
Gas identification
Gas sensor
Gas sensors
Insulation
Polyvinyl chlorides
Pyrolysis
Sensor arrays
SnO2
Thermo-cyclic operation
Tin dioxide
Tin oxides
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Summary:In this work, a setup for generation and analysis of pyrolysis gases, which can operate multi gas sensor arrays of different SnO2/Additive admixtures, is introduced. The gas sensor arrays are thermo-cyclically operated and are investigated towards their characteristic features of the resulting conductance-over-time profiles (CTPs) for identification and analysis of pyrolysis gases at low concentrations emitted for instance by overloaded electrical cables. Several SnO2/Additive gas sensitive layers have been examined with pyrolysis gas related model gases like CO, methane and propene and were tested on their stability, sensitivity and characteristic CTP-features when exposed to pyrolysis gases of PVC insulation materials.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2015.02.014