Acoustic emission (AE) sensors are used to detect cavitation in hydraulic systems on wind turbines by capturing the high-frequency sounds generated by collapsing bubbles. Cavitation is the formation and implosion of vapor bubbles in a liquid, caused by rapid pressure changes. In hydraulic systems, this often occurs in pumps, valves, or areas with restricted flow. The implosion of these bubbles creates a localized shock wave that generates a wide range of acoustic frequencies, including those in the ultrasonic range, which are detectable by AE sensors. The process begins with attaching AE sensors directly to the surface of the hydraulic component being monitored, typically the pump casing or valve body. Th....
Log in to view the answer
