欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
光纤光栅传感技术近年来越来越多地被应用于土木工程领域,并逐渐显现出了其优势,但对结构振动的测试,尚缺少较为成熟可靠的光纤光栅加速度传感器。提出一种新型的光纤光栅加速度传感器设计方案,其具有高灵敏度和温度自补偿的特性,能够满足结构测试中低频、微幅振动,并克服温度的影响。介绍了传感器的原理,及进行的参数优化,在保证量程和量测频率范围的前提下使灵敏度达到了最大;还对所设计的传感器进行了有限元分析,得到了其幅频、相频、灵敏度、线性度等特性,有限元计算结果和理论优化值相符合。
英文摘要：
In recent years,the Fiber Bragg Grating （FBG） sensing technique has been increasingly applied in civil engineering structures. However, it is still lacking of a reliable FBG accelerometer for structural vibration measurement. For the practical requirement, this paper proposed a novel design of FBG accelerometer. This sensor has high sensitivity at a low frequency range in which the natural modes of civil engineering structures are concerned. The temperature influence can be self-compensated. Comprehensive parameter optimization was conducted to improve the sensor＇ s sensitivity in a working range and frequency. Finite Element Method （FEM） analysis was done to study amplitude-frequency and phase-frequency relationships,as well as sensor＇ s sensitivity and linearity. The results showed the agreement with the theoretical ones.
同期刊论文项目
同项目期刊论文
Electrode design, measuring method and data acquisition system of carbon fiber cement paste piezores
Experimental study on the contribution of the quantum tunneling effect to the improvement of the con
Development of a wireless stress/strain measurement system integrated with pressure-sensitive nickel
Experimental study on use of nickel powder-filled cement-based composite for fabrication of piezores
Piezoresistive characteristic model of nickel/cement composites based on field emission effect and i
Fiber-reinforced polymer-packaged optical fiber sensors based on Brillouin optical time domain analy
A Smart Steel Strand for the Evaluation of Prestress Loss Distribution in Post-tensioned Concrete St
Effect of compressive strain on electrical resistivity of carbon black-filled cement-based composite
Sensor technology innovation for the advancement of structural health monitoring: a strategic progra
Environmental variability study on the measured responses of Runyang Cable-stayed Bridge using wavel
Accurate stress analysis on rigid central buckle of long-span suspension bridges based on submodel m
Finite element model updating for the Runyang Cable-stayed Bridge tower using ambient vibration test
期刊信息
位置：