Moving gas outlets for the evaluation of fast gas sensors
1998 (English)In: EUROSENSORS XII, VOLS 1 AND 2, IOP PUBLISHING LTD , 1998, 761-764 p.Conference paper (Refereed)
It is shown that platinum thin-insula :or-silicon carbide Schottky diodes operated at about 600 degrees C are fast enough to monitor the air fuel ratio in the individual cylinders in the exhaust from a petrol engine. These chemical sensors have time constants of the order of 1 ms. We describe a simple laboratory technique, which can be used to change the gas composition at a chemical sensor within milliseconds. It is based on mechanically oscillating gas outlets placed close to the sensor surface. The properties of and possibilities with such "moving gas outlets" are described.
Place, publisher, year, edition, pages
IOP PUBLISHING LTD , 1998. 761-764 p.
, SENSORS SERIES
Gas sensors; Automotive electronics; Flow; Silicon carbide; High temperature; MIS devices
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-88126ISI: 000077311200185ISBN: 0-7503-0536-3OAI: oai:DiVA.org:liu-88126DiVA: diva2:604015
EUROSENSORS XII: 12th European Conference on Solid-State Transducers - 9th UK Conference on Sensors and Their Applications , 13-16 September 1998, Southampton, UK