The Study on Prestressed Cable Stress Based on Brillouin-optictime Optic Fiber Sensor

摘要：

The Brillouin-optictime domain reflectometer (BOTDR) fiber strain sensing technology has been used in the optic fiber and its attachment surface supporting for the axial strain distributed monitoring,A stress test monitoring is respectively on a steel hinge cable line with the three arylene fiber-reinforced plastic (AFRP) anchor,and the distributed contingency sampling point has the minimum distance of 5cm. Test results show that distributed optic fiber sensor has a high accuracy. The relative error between optic fiber sensors and strain measurements is less than 3.8 percent. In the stage of tensing anchors,a steel cable hinge lines prestressed loss is 8.8 percent;three AFRP anchors prestressed loss is less than 6.08 percent. After a month,the steel cable hinge lines prestressed loss is 11.1 percent;AH cable prestressed loss is less than 10.3 percent.

关键词： Measurement and metrology Brillouin Optical Time Domain Reflectometer distributed optic fiber sensor prestressed cable stress

作者: Dongsheng Wang Weiwei Pan

作者单位: Department of Mechanical and electrical Engineering,Hebei Engineering University Handan,Hebei 056001 .China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 1981-1984

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）