SENSING OIL CONDITION THROUGH TEMPERATURE COEFFICIENT OF DIELECTRIC CONSTANT |
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| Josep M. Torrents, Ramon Pallàs-Areny |
- Abstract:
- Time-scheduled oil changes in internalcombustion engines are often performed well before the oil starts to significantly lose its lubricating properties. A check of oil properties using laboratory analysis methods is expensive. Using the same techniques during service would be extremely difficult. Consequently, oil is seldom analyzed before substitution, which results in oil wasting. This paper shows that in the low frequency range, the temperature coefficient of the dielectric constant of lubricating oils depends on whether the oil is fresh or it has been used. Hence, the change in dielectric constant from ambient temperature to working temperature is a possible sensing method for engine oil condition.
- Keywords:
- oil condition sensor, oil degradation sensor, oil quality sensor, dielectric constant, temperature coefficient
- Download:
- PWC-2003-TC4-108.pdf
- DOI:
- -
- Event details
- Event name:
- XVII IMEKO World Congress
- Title:
Metrology in the 3rd Millennium
- Place:
- Dubrovnik, CROATIA
- Time:
- 22 June 2003 - 28 June 2003