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Using magnetoresistive (MR) sensors for a sensitivity quantum leap in aircraft nondestructive evaluation (NDE)

机译:使用磁阻(MR)传感器实现飞机无损评估(NDE)中的灵敏度量子跃迁

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摘要

MR sensors offer a significant increase in sensitivity for inspection of subsurface features and flaws in metallic aircraft structure. This is especially true for deeper inspections with depths between 10 and 20 mm below the accessible surface. I show C-scan images of deep flaws, with dimensions down to one-tenth of the thickness of the covering metal. Issues involved in developing and operating an imaging scanner using these sensors are discussed.
机译:MR传感器极大地提高了检查金属飞机结构的地下特征和缺陷的灵敏度。对于深度更深的检查(在可及表面以下10到20毫米之间)的检查尤其如此。我显示了深层缺陷的C扫描图像,其尺寸低至覆盖金属厚度的十分之一。讨论了使用这些传感器开发和操作成像扫描仪时涉及的问题。

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