Dual Purpose Etched Polarimetric Optical Fiber Sensor for Concrete

用于混凝土的双用途蚀刻偏振光纤传感器

• 批准号: 9402671
• 负责人: Farhad Ansari
• 金额: --
• 依托单位: New Jersey Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-10-01 至 2000-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9402671&HistoricalAwards=false
• 关键词: Dual; Purpose; Etched; Polarimetric; Optical

In-service performance of concrete structures depends on consistent monitoring of condition for early scheduling of repair and retrofit operations. Proper quality control and condition monitoring procedures are either nonexistent or not readily applicable to large concrete structures. Early detection of large displacements and cracks in concrete elements will result in increased safety and considerable savings in rehabilitation costs. This research will examine the feasibility of using a novel class of fiber optic sensors for real-time condition monitoring of concrete structures. The new embedded sensor will serve a dual purpose by providing in-place strength estimations at early ages during construction, and crack detection capabilities there after.

混凝土结构的使用性能取决于对状况的持续监测，以便及早安排维修和改造操作。 适当的质量控制和状态监测程序要么不存在，要么不容易适用于大型混凝土结构。 及早发现混凝土构件中的大位移和裂缝将提高安全性并大大节省修复费用。 本研究将探讨使用一种新型的光纤传感器的混凝土结构的实时状态监测的可行性。 新的嵌入式传感器将具有双重用途，在施工期间的早期提供现场强度估计，并在此后提供裂缝检测功能。