Ultrasonic cavitation detection system

摘要: A forced-excitation ultrasonic cavitation detection system for detecting cavities in rotating machinery such as pumps, water turbines and ducting elements, is composed of an transmitting transducer attached to the outer wall test component pulses into component, at least one, preferably a plurality receiving transducers passing through component. The excited by pulse generator. An electronic data processing provided which connected output also generator synchronization line. programmed discriminate between signals from due other extraneous including noise. For this purpose includes algorithm, ensemble averaging, time-gating or cross-correlation, each capable extracting noise even much higher intensity. When there no cavitation, maximum signal received. In presence vapor gas bubbles, interferes with propagation pulses, thus reducing amplitude received signal.