Ultrasonic phased array transducer, scanning device and detection system

• Main Authors: LI LIFAN, WU DI, ZHANG BONAN, BI CHAO, CUI ZONGWEN, HU QIKUN, LIU YONG, CUI HE
• Format: Patent
• Language: Chinese; English
• Published: 30.09.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to an ultrasonic phased array transducer, a scanning device and a detection system. According to the ultrasonic phased array transducer, a plurality of small-size wafers are adopted to form an annular array, the wafer sets are all made of PZT/epoxy resin 1-3 structure composite materials, any number of adjacent wafers can be excited to work at the same time, a virtual transducer is generated, flaw detection of small crack defects can be conducted on a hollow axle, and the ultrasonic phased array transducer has the advantages of being simple in structure and convenient to operate. The virtual transducer can generate sound beams in different circumferential detection directions, meanwhile, circumferential flaw detection sound beam deflection can be achieved, the sound field of the circumferential portion of the hollow axle can be completely covered through the virtual transducer, and near-surface fine cracks of the hollow axle can be comprehensively and effectively detected. The hollow axl