基于扫频光学相干多点测振仪的转轴轴心轨迹监测方法  

Trajectory monitoring method of rotation shaft center based on swept-source optical coherence multi-point vibrometer

作　　者：伏喜斌 林杰文 钟剑锋 徐火力 刘东明 池守疆 张秋坤 钟舜聪 王东 张焱 FU Xibin;LIN Jiewen;ZHONG Jianfeng;XU Huoli;LIU Dongming;CHI Shoujiang;ZHANG Qiukun;ZHONG Shuncong;WANG Dong;ZHANG Yan(Xiamen Special Equipment Inspection Institute,Xiamen 361000,China;Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing,Fuzhou 350108,China;School of Physics and Information Engineering,Fuzhou University,Fuzhou 350116,China;Xiamen Branch,China Aviation Fuel Co.,Ltd.,Xiamen 361000,China;Zhejiang Makepower Co.,Ltd.,Wenzhou 325025,China)

机构地区：[1]厦门市特种设备检验检测院,福建厦门361000 [2]福建省太赫兹功能器件与智能传感重点实验室,福建福州350108 [3]福州大学物理与信息工程学院,福建福州350116 [4]中国航空油料有限责任公司厦门分公司,福建厦门361000 [5]浙江创力电子股份有限公司,浙江温州325025

出　　处：《应用光学》2023年第5期1095-1101,共7页Journal of Applied Optics

基　　金：国家自然科学基金(51905102,52275523,52275096);中国博士后科学基金(2019M662226);福建省产业技术开发与应用计划引导性项目(2021H0012)。

摘　　要：结合频分复用技术与扫频光学相干测振仪,提出一种基于光学相干多点测振仪(sweptsource optical coherence multi-point vibrometer,SSOCMV)的转轴轴心轨迹监测方法和系统,其具有非接触式、非侵入式、高精度以及多点振动同步测量的优点。首先,对SSOCMV的系统组成和测量原理进行了介绍与分析;其次,搭建实验对比系统以验证SSOCMV系统的测量准确性,在SSOCMV系统探头的对称位置安装电涡流传感器以同步监测转轴轴心轨迹,便于对比两个系统的测量结果。实验结果表明,基于光学相干多点测振仪的转轴轴心轨迹监系统比电涡流传感器具有更高的位移分辨率和更好的信噪比。因此,SSOCMV系统在旋转机械状态监测、参数识别和故障诊断等方面具有良好的应用前景。A trajectory monitoring method and system of rotation shaft center based on swept-source optical coherence multi-point vibrometer(SSOCMV)were proposed by the combination of frequency-division multiplexing technique and swept-source optical coherence vibrometer,which have advantages of non-contact,non-invasive,high accuracy and simultaneous muti-point vibration measurement.Firstly,the system composition and measurement principle of SSOCMV were introduced and analyzed.Then,the experimental comparison system was set up to verify the measurement accuracy of the SSOCMV system,and the eddy current sensor was installed in a symmetrical position of the probe of the SSOCMV system to synchronously monitor the trajectory of rotation shaft center,so as to compare the measurement results of these two systems.The experimental results show that the trajectory monitoring system of rotation shaft center based on SSOCMV has a higher displacement resolution and a better signal to noise ratio(SNR)than eddy current sensor.Therefore,the SSOCMV has a good application prospect in the rotating mechanical condition monitoring,parameter identification and fault diagnosis.

关 键 词：光学相干测振仪 转轴监测 轴心轨迹 动态测量 

分 类 号：TN29[电子电信—物理电子学]