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http://dx.doi.org/10.7846/JKOSMEE.2012.15.1.022

Theoretical Characteristics of the Probe with Respect to the Engine Oil States  

Kim, Young-Ju (Department of Electronics and Electrical Engineers Hongik University)
Publication Information
Journal of the Korean Society for Marine Environment & Energy / v.15, no.1, 2012 , pp. 22-24 More about this Journal
Abstract
Depending on the status of the engine oil, the dielectric constant is changed. Dielectric constant of oil is related to the characteristic impedance of the probe and the characteristic impedance of the probe determines the reflected signal. In this paper, we derive an equivalent circuit of the probe and using the dielectric constant obtained by measuring the capacitance, the theoretical reflection coefficient of the probe was calculated. In the results, if the engine oil is deteriorated, we can see that the reflection coefficient is increased.
Keywords
Reflection coefficient; oil deterioration; dielectric constant; engine oil; characteristic impedance;
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