Machinery Vibration Measurements and Analysis

Modern trends in machinery vibration monitoring and fault detection are based in highly sophisticated instrumentation and integrated hardware-software computer systems. Despite the rapid evolution in the past few years towards “expert” or “intelligent” analysis systems the knowledge behind it is based on the same type of information: vibration signature analysis. Measurements of machinery vibration behaviour rely on transducers, their signals being displayed in the time domain and/or frequency domain for interpretation. The present lecture is an overall review of the principles upon which vibration analysis instrumentation is based and data are displayed for interpretation.