Precision Ultrasonic Measurement of Lubricant Film Thickness

Ultrasonic Measurement of Lubricant Film Thickness: Principles and Engineering Applications offers a comprehensive scientific reference for researchers, engineers, and students interested in tribology, mechanical engineering, and machine condition monitoring. The book addresses the increasing demand for accurate, in-situ monitoring of lubrication film thickness in critical machinery, a key factor in reliability and predictive maintenance. Integrating acoustics, signal analysis, and multiphysics modeling, this book provides a systematic, multidisciplinary resource in the field. The contents span fundamental principles, ultrasonic system design, multilayer and thin-film measurement models, calibration and compensation strategies, and advanced signal processing. Readers are guided through practical engineering case studies, including sliding and rolling bearings, fuel pumps, hydropower generator bearings, and wind turbine pitch bearings. Each chapter provides theoretical background, experimental validation, and actionable methodologies for both laboratory and industrial environments. This book equips its readers with the knowledge to implement high-precision measurement systems, address practical engineering challenges, and translate laboratory advances into robust industrial solutions. It supports academic research, industrial innovation, and the development of next-generation condition monitoring and maintenance strategies.