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The aim of this work is to carry out a performance comparison between a commercial Bosch Lambda probe and a sol–gel TiO2 thin film deposited on alumina substrates. Actually, zirconia-based lambda probes are a well-established technology in the field of combustion control in fuel injection engines. An experimental bench was realized in order to perform the contemporary data acquisition of a Bosch lambda probe Mod. LSF 4.2 and TiO2 thin film sensors. The signals of both the sensors are acquired with an electrometer with a scanner card on real gasoline engine. Fast response time is observed from TiO2 sol–gel sensor, while best results were obtained from first experimental data on Pt-doped devices, that outline that the response time was comparable with the commercial probe.
Publication date: 
11 Nov 2005

DS Presicce, L Francioso, M Epifani, P Siciliano, A Ficarella

Biblio References: 
Volume: 111 Pages: 52-57
Sensors and Actuators B: Chemical