发明名称 |
Video Inspection Method for Inspecting Welds, Structural Beams, and Underdecks of Marine Vessels and Like Structures |
摘要 |
A method for inspecting a marine vessel underdeck utilizes a video camera such as a digital video camera with a magnifying or telephoto lens. The method produces a magnified image on a monitor for viewing by an inspector that appears to be no more than about 24 inches (61 cm) away. The method includes the step of filming the underdeck of a distance of about 40-70 feet (12-21 m). The lens provides a focal length of between about 15 feet (4.6 m) and 150 feet (46 m). Thus the method is conducted at a workable focal range of between about 15 feet (4.6 m) and 150 feet (46 m). The lens preferably has a focal length of between 30 feet (9 m) and 75 feet (23 m). The method includes the step of scanning the suspect area of the underdeck of a speed of about 1 inch (2.54 cm) per second to three feet (91.4 cm) per second. The preferred method contemplates scanning of the suspect area of a rate of between about 0.5-1 foot (15.2-30.5 cm) per second. The digital video can be focused on a particular area for about 15-30 seconds to create a loop for vetting. |
申请公布号 |
US2008266390(A1) |
申请公布日期 |
2008.10.30 |
申请号 |
US20070568217 |
申请日期 |
2007.10.08 |
申请人 |
ULTRASONICS AND MAGNETICS CORPORATION |
发明人 |
STEVENSON MICHAEL |
分类号 |
H04N7/18;G01N21/88 |
主分类号 |
H04N7/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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