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Ultrasonic Nondestructive Testing Using Phased Array Technique

机译:使用相控阵技术的超声无损检测

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摘要

Ultrasonic testing has been in use for many years. But because of a variety of component configurations and potential flaw geometries it is often necessary to perform several inspections, each with a different probe configuration, to assure adequate defect detectability. It is possible that a properly designed phased array probe can perform several different inspections without changing hardware thereby reducing inspection times. This paper reviews the theory and characterization of ultrasonic phased array technique. Based on the radiating sound field of a single-element transducer, the factors influencing the performance of ultrasonic phased array transducer are discussed. Some typical applications in which these probes have already been implemented effectively are also introduced.
机译:超声波测试已经使用了很多年。但是由于各种组件配置和潜在的缺陷几何形状,通常需要执行多次检查,每次检查都使用不同的探针配置,以确保足够的缺陷可检测性。经过适当设计的相控阵探头可以执行多种不同的检查而无需更改硬件,从而减少了检查时间。本文综述了超声相控阵技术的理论和表征。基于单单元换能器的辐射声场,讨论了影响超声相控阵换能器性能的因素。还介绍了其中已经有效实施了这些探针的一些典型应用。

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