光纤Bragg光栅振动传感器的标定与不确定度分析  

Calibration and Uncertainty Analysis of Optical Fiber Bragg Grating Vibration Sensor

作　　者：卢淑源 赵振刚[1] 姚敏[1] Lu Shuyuan;Zhao Zhen′gang;Yao Min(Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学信息工程与自动化学院,昆明650500

出　　处：《机械科学与技术》2020年第11期1753-1758,共6页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51667011,61962031,51567013)资助。

摘　　要：采用相对校准法对振动传感器进行标定,将被校传感器与标准传感器背靠背固定在振动台中心,承受相同的振动信号,对标准振动传感器的输出量与被校振动传感器的输出量作比较和分析,并且引入了不确定度分析。实验结果表明:Fiber Bragg Grating(FBG)振动传感器标定平台标定得到FBG振动传感器的灵敏度为5.115 pm/g,线性度为3.5%,重复性误差为4.9%FS,校准装置的测量不确定度为0.0038 g。满足待测FBG振动传感器的标定要求,提高了FBG振动传感器检定的工作效率和标定精度,可以运用于实际工程中。The relative calibration method is used to complete the calibration of the vibration sensor in this paper,the experimental sensor is put on the center of the shaking table being back-to-back with standard sensor,the data from standard vibration sensor and the experimental sensor are compared and analyzed,and introducing the uncertainty analysis.The experimental results show that the Fiber Bragg Grating(FBG)vibration sensor calibration platform is calibrated to obtain the FBG vibration sensor with a sensitivity of 5.115 pm/g,linearity of 3.5%,repeatability error of 4.9%FS,and calibration uncertainty of the calibration device is 0.0038 g.It satisfies the calibration requirements of the FBG vibration sensor to be tested,improves the working efficiency and calibration accuracy of the FBG vibration sensor verification,and this method can be applied to practical engineering.

关 键 词：光纤BRAGG光栅 振动传感器 标定 不确定度 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]