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US08138446B2 Monitoring method and device by shadowscopy 失效
监控方法和设备通过阴影检查

Monitoring method and device by shadowscopy
摘要:
A monitoring device by laser shadowscopy, which comprises a light emitter (5) and receiver (6), mounted on an arm (8) oscillating at will around two joints (13, 14), in order to restore the image of the monitored profile more accurately.An important application relates to welding methods and especially in hollow beveled edges.
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