Utilization of Rayleigh Waves for Engine Oil Level Measurements |
| P. Šofera, M. Šoferb, J. Gebauera, P. Niegodajewc, K. Gruszkad
aDepartment of Control Systems and Instrumentation, Faculty of Mechanical Engineering, VŠB - Technical University of Ostrava, 17. listopadu 15/2127, 708 33 Ostrava-Poruba, Czech Republic bDepartment of Applied Mechanics, Faculty of Mechanical Engineering, VŠB - Technical University of Ostrava, 17. listopadu 15/2127, 708 33 Ostrava-Poruba, Czech Republic cDepartment of Thermal Machinery, Czestochowa University of Technology, Faculty of Mechanical Engineering and Computer Science, Armii Krajowej 21, 42-201 Czestochowa, Poland dFaculty of Production Engineering and Materials Technology, Częstochowa University of Technology, Armii Krajowej 19, 42-200 Częstochowa, Poland |
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| The paper deals with the problematics of the measurement of engine oil level based on the correlation between the attenuation of the surface Rayleigh wave and the fluid level. Available literature offers a few methods, which utilizes the surface acoustic waves for such a purpose, leaving the problem not completely resolved. The theoretical assumptions regarding Rayleigh wave formation on the free surface were supported by numerical simulations in COMSOL Multiphysics software. The final part of this article describes an experimental device that has been designed and manufactured for the measurement purposes including the proposal of the measuring method based on the attenuation of Rayleigh surface waves under the influence of propagation along the solid-liquid interface. |
DOI:10.12693/APhysPolA.138.272 topics: surface acoustic wave, FEM, fluid level measurement |