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Large Area, Real Time Inspection Industrial Structures Using a Novel Handheld Ultrasound Camera

机译:使用新型手持式超声波摄像机进行大面积实时检查的工业结构

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摘要

Ultrasound is arguably the most effective nondestructive testing method for the inspection of subsurface faults. However, hand scanning of parts is subject to inspector error and fatigue and automated point-by-point is extremely time consuming. We are reporting on the results of the use of a novel handheld camera for the rapid inspection of parts. This camera technology can be used for a variety of materials of different sizes and geometries. Using this system, subsurface corrosion, delaminations, voids, cracks and other faults can be seen with high resolution and quantified immediately. This technique results in scans that can be done several times faster than conventional point-by-point or hand scanning. A non-specialized technician can easily understand the resulting imagery. Each frame, presented at TV rates, presents a C-scan image over an area. A handheld probe is placed against the target under study and a real time subsurface image appears on a display. The ultrasound system is lens-based and utilizes a two-dimensional imaging 120x120 element array. The array is similar to arrays used in standard video camcorders. However, the new imaging array is sensitive to ultrasound, not light. We will present recent data from the new handheld camera system on composites and metals.
机译:超声波无疑是检查地下缺陷的最有效的无损检测方法。但是,零件的手工扫描易受检查员错误和疲劳的影响,并且逐点自动进行非常耗时。我们正在报告使用新型手持相机快速检查零件的结果。该相机技术可用于各种大小和几何形状的材料。使用该系统,可以高分辨率查看地下腐蚀,分层,空洞,裂缝和其他故障,并立即进行量化。与传统的逐点扫描或手动扫描相比,该技术可以使扫描速度提高几倍。非专业的技术人员可以轻松地了解最终的图像。以电视速率显示的每一帧都在一个区域上呈现C扫描图像。将手持式探头放在要研究的目标上,并在显示器上显示实时地下图像。超声系统是基于透镜的,并利用二维成像120x120元素阵列。该阵列类似于标准视频摄录机中使用的阵列。但是,新的成像阵列对超声波而不是光敏感。我们将展示来自新型复合材料和金属手持摄影机系统的最新数据。

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