A Magnetoelastic Viscometer for On-Line Monitoring of Viscosity of Lubricating Oils
- A Magnetoelastic Viscometer for On-Line Monitoring of Viscosity of Lubricating Oils
- L.V. Markova; V. M. Makarenko; M. S. Semenyuk; A. P. Zozulya; 공호성; 한흥구
- viscosity; lubricating oil; magnetoelastic gage; on-line monitoring; oil performance
- Issue Date
- Journal of friction and wear
- VOL 32, NO 1, 54-64
- The paper discusses the prospects for developing means for on line measurement of the viscosity
of lubricating oils, including diagnostic instrumentation based on magnetoelastic interaction. The theoretical
basis for the development of magnetoelastic sensors and the main concept of measuring the fluid viscosity are
presented. Two methods of measuring the viscosity are described. The first method is based on estimating
variations in the natural frequency of oscillations of a sensitive element and the second involves analysis of the
decay rate of the amplitude of oscillations. The design of the developed magnetoelastic sensor and the experimental results of comparing the two measurement methods are reported. The paper also presents the comparative results of measurement of the oil viscosity by a magnetoelastic sensor, a capillary viscometer, and a
solid-state piezoacoustic sensor. It is shown that the reliability of the magnetoelastic sensor is high from the
viewpoint of on line monitoring; owing to its relatively low cost and ease of maintenance, it has wide potential for application in monitoring of lubricating oils in tribosystems.
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