| Research on Digital Dynamic Testing Technique for Electrohydraulic Servovalve |
| |
| 作者姓名： | 汪首坤 王军政 赵江波 张宇河 |
| |
| 作者单位： | DepartmentofAutomaticControl,SchoolofInformationScienceandTechnology,BeijingInstituteofTechnology,Beijing100081,China |
| |
| 摘 要： | The digital testing technique based on computers for dynamic characteristics of electrohydraulic servovalves via frequency scan method is researched. The no-load piston which measures the servo‘ s transient output flow is designed properly. The velocity testing method by which the speed signal can be obtained indirectly by means of a piezoelectral accelerometer is given. High speed sampling has been realized in Windows OS. Wavelet denoising and Fourier transform are adopted in data processing and analyses. The testing technique discussed has been applied to actual testing systems and the experimental results have proved it to be correct.
|
| 关 键 词： | 电液伺服阀 频率响应 空载活塞 小波变换 频率扫描 动力性能测试 数字测试 |
| 收稿时间： | 2003/6/17 0:00:00 |
Research on Digital Dynamic Testing Technique for Electrohydraulic Servovalve |
| |
| WANG Shou-kun,WANG Jun-zheng,ZHAO Jiang-bo and ZHANG Yu-he.Research on Digital Dynamic Testing Technique for Electrohydraulic Servovalve[J].Journal of Beijing Institute of Technology,2003,12(4):357-361. |
| |
| Authors: | WANG Shou-kun WANG Jun-zheng ZHAO Jiang-bo and ZHANG Yu-he |
| |
| Affiliation: | Department of Automatic Control, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
| |
| Abstract: | The digital testing technique based on computers for dynamic characteristics of electrohydraulic servovalves via frequency scan method is researched. The no-load piston which measures the servo's transient output flow is designed properly. The velocity testing method by which the speed signal can be obtained indirectly by means of a piezoelectral accelerometer is given. High speed sampling has been realized in Windows OS. Wavelet denoising and Fourier transform are adopted in data processing and analyses. The testing technique discussed has been applied to actual testing systems and the experimental results have proved it to be correct. |
| |
| Keywords: | electrohydraulic servovalve frequency response no-load piston wavelet transformation frequency scan |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《北京理工大学学报(英文版)》浏览原始摘要信息 |
|
点击此处可从《北京理工大学学报(英文版)》下载全文 |
