摘要
对一种耐高温的长周期光纤光栅应变检测信号解调技术进行了研究。首先对耐高温光纤光栅的制备方法和高温性能进行了分析和测试,然后采用阵列波导光栅(AWG)器件,对基于等强度悬臂梁的应变检测信号解调技术进行了研究,证实了AWG信号解调技术具有结构简单、技术新颖以及性能可靠的特点。在AWG解调方法中对测试数据的谱线重塑方法进行了讨论,并采用数据融合算法对温度交叉敏感的温度补偿算法进行了实验研究,取得了明显的温度补偿效果。
One of the strain signal interrogation technology of high-temperature long-period fiber grating was studied. First, the fabrication method and high temperature performance of this high-temperature long-period fiber grating were analyzed and tested,and based on Arrayed Wavegnide Grating（AWG）device,a novel strain signal interrogation method was researched with cantilever of equal strength. The experimental results verified that the signal interrogation technology based on AWG has many advantages, such as simple structure, innovative, reliable performance ,and so on. Curve reconstruction method of the test data were discussed in the process of signal interrogation based on AWG, and temperature-strain cross sensitivity compensation algorithm named data fusion algorithm was experimentally studied, which obtained obvious effect on temperature compensation finally.
出处
《传感技术学报》
CAS
CSCD
北大核心
2012年第6期799-802,共4页
Chinese Journal of Sensors and Actuators
基金
浙江省重大科技专项项目(2010C11068)
浙江省自然科学基金项目(Y1091078)
