A novel technique for dynamic alignment of ultrasonic transducers in real-time non-destructive testing

G. Gunarathne, Y. Qureshi
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引用次数: 2

Abstract

Ultrasonic non-contact inspection methods require the correct alignment of test probes before return signals (echoes) are acquired. However, for critical remote applications, such as pipeline inspection, there are no accurate means of achieving this objective, and hence the accuracy and full potential of ultrasonic inspection is not realized. In this paper, a novel sensing technique to detect angular misalignment of a test probe with a view to ensure automatic alignment of the probe with the target is presented. The technique is based on analyzing the waveform features of the received signals. In this regard, a theoretical formulation concerning the applicability of the method is first reported, followed by a detailed practical study. The technique could be employed for automatic alignment of the test probes in remote ultrasonic inspection.
一种实时无损检测中超声换能器动态对准的新技术
超声波非接触式检测方法要求在获得返回信号(回波)之前测试探头的正确对准。然而,对于关键的远程应用,如管道检测,没有准确的手段来实现这一目标,因此超声波检测的准确性和全部潜力没有实现。本文提出了一种检测测头角度不对准的传感技术,以保证测头与目标的自动对准。该技术基于对接收信号波形特征的分析。在这方面,首先报告了关于该方法适用性的理论表述,然后进行了详细的实践研究。该技术可用于远程超声检测中检测探头的自动对准。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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