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Proceedings Paper

Evaluation of sensor arrays for engine oils using artificial oil alteration
Author(s): Sedat Sen; Christoph Schneidhofer; Nicole Dörr; Michael J. Vellekoop
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Paper Abstract

With respect to varying operation conditions, only sensors directly installed in the engine can detect the current oil condition hence enabling to get the right time for the oil change. Usually, only one parameter is not sufficient to obtain reliable information about the current oil condition. For this reason, appropriate sensor principles were evaluated for the design of sensor arrays for the measurement of critical lubricant parameters. In this contribution, we report on the development of a sensor array for engine oils using laboratory analyses of used engine oils for the correlation with sensor signals. The sensor array comprises the measurement of conductivity, permittivity, viscosity and temperature as well as oil corrosiveness as a consequence of acidification of the lubricant. As a key method, rapid evaluation of the sensors was done by short term simulation of entire oil change intervals based on artificial oil alteration. Thereby, the compatibility of the sensor array to the lubricant and the oil deterioration during the artificial alteration process was observed by the sensors and confirmed by additional laboratory analyses of oil samples take.

Paper Details

Date Published: 5 May 2011
PDF: 7 pages
Proc. SPIE 8066, Smart Sensors, Actuators, and MEMS V, 80662C (5 May 2011); doi: 10.1117/12.886761
Show Author Affiliations
Sedat Sen, AC2T Research GmbH (Austria)
Vienna Univ. of Technology (Austria)
Christoph Schneidhofer, AC2T Research GmbH (Austria)
Nicole Dörr, AC2T Research GmbH (Austria)
Michael J. Vellekoop, Vienna Univ. of Technology (Austria)

Published in SPIE Proceedings Vol. 8066:
Smart Sensors, Actuators, and MEMS V
Ulrich Schmid; José Luis Sánchez-Rojas; Monika Leester-Schaedel, Editor(s)

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