拉索锚固系统隐蔽部分安防预警检测装置的设计

蔡琳, 陈乐庚

蔡琳, 陈乐庚. 拉索锚固系统隐蔽部分安防预警检测装置的设计[J]. 应用光学, 2013, 34(4): 588-593.
引用本文: 蔡琳, 陈乐庚. 拉索锚固系统隐蔽部分安防预警检测装置的设计[J]. 应用光学, 2013, 34(4): 588-593.
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CAI Lin, CHEN Le-geng. Security and early warning detection device in invisible part of stay cable anchorage system[J]. Journal of Applied Optics, 2013, 34(4): 588-593.
Citation: CAI Lin, CHEN Le-geng. Security and early warning detection device in invisible part of stay cable anchorage system[J]. Journal of Applied Optics, 2013, 34(4): 588-593.
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拉索锚固系统隐蔽部分安防预警检测装置的设计

  • 桂林电子科技大学 电子工程与自动化学院,广西 桂林 541004

详细信息
    通讯作者:

    蔡琳（1988-），女，湖北武汉人，硕士研究生，主要从事光电检测方面的研究工作。 Email：jolin0825@126.com

  • 中图分类号: TN219

Security and early warning detection device in invisible part of stay cable anchorage system

  • School of Electronic Enginering and Automation,Guilin University of Electronic Technology,Guilin 541004,China

摘要

    摘要
  • 摘要: 斜拉桥锚固区拉索索体隐蔽在预埋管内，肉眼无法检测其损伤情况。搭建了一套基于高分辨率的视频采集检测技术装置，实现了隐蔽段拉索索体的远距离观测和狭小空间内的外表损伤检测。系统主要由光学支架与精密机械支撑装置、光学成像系统、照明光源、驱动电机控制、IP摄像机视频采集系统等部分组成。设计了一套3个不同焦距（长焦、中焦和短焦）的望远物镜，通过转换器实现在不同监控距离上的适配选用，物镜系统与照明系统远分离，使成像光路有效地避开隐蔽部分的恶劣环境。实践证明，该装置能有效采集到清晰的索体外表面监控视频图像，可用于预应力构筑物安防预警等方面。
    Abstract: The cables in anchorage zone of cable-stayed bridge are hidden within the embedded pipe, which leads to the difficulty for detecting the damage of the cables with visual inspection. A detection device based on high-resolution video capture was built, the distance observing of invisible segment of stay cable and damage detection of outer surface of cable in the small volume were realized. The system mainly consisted of optical stents and precision mechanical support device, optical imaging system, lighting source, driving motor control and IP camera video capture system. A set of telescope objectives with three different focal lengths were designed and used in different distances of the monitors by means of converter. Lens system was far separated from lighting system, so that the imaging optical path could effectively avoid the harsh environment which was in the invisible part of cables. The practice shows that the device not only can collect the clear surveillance video images of outer surface of cable effectively, but also has a broad application prospect in security warning of the prestressed structures.
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    • 参考文献(1)
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  • 刊出日期:  2013-07-14

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