FBG传感器在上埋式柔性涵管应变检测中的应用  

Application of FBG sensor in strain detection of buried flexible culvert

作　　者：郑娟[1] 刘保健[1] 杨真[2] 马伟思[1] 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]华东交通大学现代教育技术中心,江西南昌330013

出　　处：《传感器与微系统》2015年第9期158-160,共3页Transducer and Microsystem Technologies

摘　　要：在岩土工程领域,光纤Bragg光栅(FBG)传感技术的应用在工程检测中具有极大的优越性。阐述了FBG传感器的基本原理,通过对上埋式HDPE缠绕增强涵管采用FBG进行应变检测,将试验检测结果与数值模拟结果进行对比分析,发现FBG传感器具有精度高,抗干扰能力强,结构简单,且长期稳定性好,在岩土工程检测方面具有极大的应用与发展前景。In the field of geotechnical engineering,application of fiber Bragg grating（ FBG） sensing technology has great superiority in engineering detection. Elaborate the basic principles of FBG sensors,and test is carried out through strain detection on the buried HDPE winding reinforcement culvert pipe using FBG sensor. The experimental test results and numerical simulation results are contrastive analyzed and it is found that FBG sensors has high precision,strong anti-jamming capability,simple structure,and good long-term stability,and has great prospects of application and development in the area of geotechnical engineering detection.

关 键 词：光纤BRAGG光栅传感器 HDPE缠绕增强管 应变检测 温度补偿 热塑管 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]