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Technical Diagnostics: Principles, Methods, and Applications

Abstract: The term diagnostics originates from the medical field and refers to the identification of the nature of a health problem and its classification by examination and evaluation. Technical Diagnostics has adopted this term and deals with the “health” of technical objects. This paper provides an overview of Technical Diagnostics. It reviews the physics of failure and describes principles and methods of fault and failure examination, including structural health monitoring and nondestructive evaluation. The role of metrological parameters as indicators of technical diagnostics is analyzed, and a methodology to monitor the functional performance and structural integrity of technical objects is outlined. Technical diagnostics can be applied in nearly all areas of technology and industry in order to ensure functionality, quality, and, most importantly, safety and reliability of products, technical structures and systems.