作者: Adam Slifko , Scott M. Thayer , Subramanian Vallapuzha , Eric C. Close
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摘要: Methods and apparatuses for inspecting manholes or other voids collecting data in a comprehensive, repeatable, measurable manner. A sensor head is suspended lowered into manhole void. The collects related to the condition of void walls, locations defects, damage, lateral pipe openings. can then be processed provide three-dimensional model void, compared previous future data.