KSTLE International Journal

Korean Tribology Society (한국트라이볼로지학회)
권호 표지

Chromatic Parameters in the Condition Monitoring of Synthetic Hydraulic Oils

  • Ossia, C.V. (Tribology Research Center, Korea Institute of Science and Technology) ;
  • Kong, H. (Tribology Research Center, Korea Institute of Science and Technology) ;
  • Han, H.G. (Tribology Research Center, Korea Institute of Science and Technology) ;
  • Markova, L. (V. A. Belyi Metal-Polymer Research Institute of Belarus National Academy of Science) ;
  • Makarenko, V. (V. A. Belyi Metal-Polymer Research Institute of Belarus National Academy of Science)
  • Published : 2007.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Chromatic device was developed using light emitting diodes, optic fibers and photodiodes. Chromatic ratio and total contamination parameters based on transmitted light intensity in Red, Green, and Blue wavelengths were used for oil chemical and particulate contamination assessment. Chromatic ratio criterion was found independent of the particulate contamination of oil; but depended on chemical degradation, being more sensitive for synthetic than mineral hydraulic oil. Total contamination index of the sensor depended on both the chemical degradation and particulate contamination of the oil; being most sensitive in blue wavelength, and least in the red. Test results for synthetic hydraulic oils monitored corroborated with results of other tests such as viscosity, total acid number, elemental optical emission spectroscopy, particulate counts and UV-VIS photospectrometry. Chromatic ratio showed a clearer indication of oil degradation, compared to key monitoring parameters such as total acid number, viscosity and particle counts. The results showed that these parameters are effective criteria for the condition monitoring of synthetic hydraulic oils.

Keywords

References

  1. Kumar, S., Muherjee, P. S., Mishra, N. M., 'Online Condition Monitoring of Engine Oil'. Industrial Lubrication and Tribology. Vol. 57 (6), pp. 260-267, 2005 https://doi.org/10.1108/00368790510622362
  2. Turner, J. D., Austin, L., 'Electrical Technique for Online Condition Monitoring'. Measurement Science and Technology, Vol. 14 (10), pp. 1794-1800, 2003 https://doi.org/10.1088/0957-0233/14/10/308
  3. Khandaker, I. I., Glavas, E., Jones, G.R., 'A Fiber-Optic oil Condition Monitor Based on Chromatic Modulation'. Measurement science and Technology, Vol. 4, pp. 608-613, 1993 https://doi.org/10.1088/0957-0233/4/5/011
  4. Kanavouras, A., Coutelieris, F. A., 'Shelf-Life Predictions for Packaged Olive Oils based on Simulations'. Food chemistry Vol. 96 (1). pp. 48-55, 2006 https://doi.org/10.1016/j.foodchem.2005.01.055
  5. Kong, H. et al., 'Method and Apparatus for Monitoring Oil Deterioration in Real Time, Korean Patent Application 10-2006-0070869, 2006
  6. Korea Oil and Chemical Inspection Testing Institute (KOCITI) 'Lubricant and Lubrication Management-Lubrication Engineering Series-9'. Jung Moon Publishers, pp. 117-120, 1989
  7. Wurzbarch, R. W. (Maintenance Reliability Group Inc), 'Airing Out Lubricant Oxidation'. Practicing Oil Analysis Magazine, May 2000
  8. Vanhanen J., Rinkio, M. Aumanen, J., Korppi-Tommola, J., Kolehmainen, E., Kerkkanen, T., Torma, P., 'Characterization of Used Mineral Oil Condition by Spectroscopic Techniques'. Applied Optics, Vol. 43 (24), pp. 4718-4722, 2004 https://doi.org/10.1364/AO.43.004718