Development of Acoustic Emission technology for condition monitoring of rotating machines; a brief review

摘要

One of the earliest documented applications of Acoustic Emission Technology (AET) to rotating machinery monitoring was in the late 1960's. Since then there has been an explosion in research and application based studies covering bearings, pumps, gearboxes and mechanical seals. Acoustic Emissions is defined as the range of phenomena that results in structure-borne and fluid-borne propagating waves being generated by the rapid release of energy from localised sources within and/or on the surface of a material.