Synthetic Aperture Focusing Technique: State of the art
Synthetic Aperture Focusing Technique: State of the art
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合成孔径聚焦技术：最先进的
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
G. Schaefer
中科院分区：
文献类型：
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作者：
V. Schmitz;W. Muller;G. Schaefer
超声波检测是在管道、容器或钢板等部件的制造、维修和在役检测中应用的最有前途的无损检测方法之一。从人工检测开始，过去几年的研究和开发导致了现代远程控制和微处理器控制的设备，并实现了各种各样的信号处理算法。本文着重讨论其中的一种信号处理算法，即所谓的“合成孔径聚焦技术（SAFI）”。越来越多的机构进入该技术的原因是能够获得关于真实的工业部件中的单个或多个散射体（如夹杂物、空隙或裂纹）的位置、倾斜度、尺寸和形状的最高信息含量。
Ultrasonic inspection is one of the most promising nondestructive testing methods applied during manufacturing, preservice and in-service inspection of components like pipes, vessels or steel plates. Starting from manual inspection the research and development during the last years lead to modern remote controlled and µ-processor controlled equipments with a wide variety of implemented signal processing algorithms. This article is concentrated upon the discussion of one of these signal processing algo-rithms, the so-called “Synthetic Aperture Focussing Technique = SAFI”. The reason why more and more institutions enter this technique is the capability to get the highest information content on position, inclination, size and shape of single or of multiple scatterers like inclusions, voids or cracks in real industrial components.