自动化便携式铁谱仪的设计与实验研究  

Design and experimental study of automatic portable ferrograph

作　　者：丁士 左洪福[1] 刘岩 刘珍珍 王涵 李鹏涛 Ding Shi;Zuo Hongfu;Liu Yan;Liu Zhenzhen;Wang Han;Li Pengtao(College of Civil Aviation,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学民航学院,南京210016

出　　处：《分析仪器》2023年第1期21-26,共6页Analytical Instrumentation

基　　金：国家自然科学基金项目(U1933202)。

摘　　要：设备油液中的磨粒携带的各种特征信息是设备进行故障诊断与维护的重要依据,铁谱仪是分析研究机械设备磨损状态的专用设备。为满足铁谱仪自动化以及制谱分析过程快捷方便的要求,设计了一套便携式铁谱仪系统。该铁谱仪采用单片机控制,运用PID速度环控制方法,实现了从制谱到清洗的全自动过程,成功制得沉积效果良好的谱片。结合自动扫描显微镜观测部分,以图像灰度方差函数为目标函数,采用变步长遍历搜索法,实现了图像的自动聚焦与采集,验证了自动化便携式铁谱仪的制谱效果。Various characteristic information carried by particles in oil of equipment is an important basis for fault diagnosis and maintenance of equipment.Ferrograph is a special equipment for analyzing and studying the wear state of mechanical equipment.The ferrograph is controlled by a single chip microcomputer,and uses PID speed loop control method,realizeing the automatic process from ferrogram making to cleaning,and successfully producing a spectrum with good deposition effect.Combined with the observation part of the automatic scanning microscope,taking the image gray variance function as the objective function,the variable step size traversal search method is adopted to realize the autofocus and collection of the image,which verifies the effect of the automatic portable ferrograph.

关 键 词：便携 铁谱仪 自动化 自动聚焦 

分 类 号：TH89[机械工程—仪器科学与技术]