Linear and nonlinear dynamics of a fast response air-to-fuel ratio sensor

and

Published 5 June 2009 2009 IOP Publishing Ltd
, , Citation Michael J Brear and Ashley P Wiese 2009 Meas. Sci. Technol. 20 075203 DOI 10.1088/0957-0233/20/7/075203

0957-0233/20/7/075203

Abstract

In another work, Guibert and Dicocco have designed and tested a sensor for measuring the equivalence ratio of a mixture of hydrocarbon fuel and air. This sensor utilized the operating principles of constant temperature anemometry (CTA) with hot-wires. Thus, it should have a dynamic response that is comparable to CTA, even though Guibert and Dicocco verified the sensor's functioning at frequencies well below typical CTA cut-off frequencies. This paper therefore proposes quasi-analytic transfer functions that govern the sensor's linear dynamics. These linearized models are validated against numerical simulations of the fully nonlinear device dynamics, suggesting that the sensor has CTA-like bandwidth and can be considered linear for fluctuation amplitudes common in most combustion systems.

Export citation and abstract BibTeX RIS

Access this article

The computer you are using is not registered by an institution with a subscription to this article. Please choose one of the options below.

Login

IOPscience login

Find out more about journal subscriptions at your site.

Purchase from

Article Galaxy
CCC RightFind

Purchase this article from our trusted document delivery partners.

Make a recommendation

To gain access to this content, please complete the Recommendation Form and we will follow up with your librarian or Institution on your behalf.

For corporate researchers we can also follow up directly with your R&D manager, or the information management contact at your company. Institutional subscribers have access to the current volume, plus a 10-year back file (where available).

Please wait… references are loading.
10.1088/0957-0233/20/7/075203