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Development of an Ultrasonic Sensing Technique to Measure Lubricant Viscosity in Engine Journal Bearing In-Situ

Development of an Ultrasonic Sensing Technique to Measure Lubricant Viscosity in Engine Journal Bearing In-Situ

Paperback

Series: Springer Theses

Technology & Engineering

ISBN10: 3319851454
ISBN13: 9783319851457
Publisher: Springer Nature
Published: May 4 2018
Pages: 167
Weight: 0.59
Height: 0.39 Width: 6.14 Depth: 9.21
Language: English
This thesis presents a novel ultrasonic instrument for non-invasive and in-situ characterization of journal bearing lubricant viscosity. In particular, the application to journal bearings is described by non-invasively measuring the viscosity and localized power losses throughout operation.
This ultrasonic viscometer is based on the reflection of polarized shear waves from a thin resonating coating layer to increase the measurement sensitivity, in comparison to conventional ultrasonic methods. This instrument allows for a full engine oil viscoelastic characterization in-situ.

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