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Automated Detection of Fatigue Cracks Around Fasteners Using Millimeter Waveguide Probe
Automated Detection of Fatigue Cracks Around Fasteners Using Millimeter Waveguide Probe
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机译:使用毫米波波导探头自动检测紧固件周围的疲劳裂纹
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摘要
An automated high-speed method for inspecting metal around fasteners and a computer-controlled apparatus for performing that inspection method. The apparatus comprises a multi-motion inspection head mounted on a scanning bridge, a robotic arm, or a robotic crawler vehicle. The multi-motion inspection head comprises a millimeter waveguide probe and a motorized multi-stage probe placement head that is operable for displacing the waveguide probe along X, Y and Z axes to achieve multiple sequenced motions. The waveguide probe is attached to a mandrel that is rotatably coupled to an X-axis (or Y-axis) stage for rotation about the Z axis. Smart servo or stepper motors with feedback control are used to move the waveguide probe into place and then scan across or around a fastener head to inspect for cracks that may be under paint.
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