| 基于CCD的CDT电子束着屏误差自动测试系统 |
| |
| 引用本文： | 毕岗,李志能,曾宇.基于CCD的CDT电子束着屏误差自动测试系统[J].光电工程,2003,30(4):42-45. |
| |
| 作者姓名： | 毕岗 李志能 曾宇 |
| |
| 作者单位： | 浙江大学信息与电子工程学系,浙江,杭州,310027 |
| |
| 摘 要： | 利用CCD图像传感器和图像采集处理技术,实现了电子束着屏误差二维自动测量。在荧光屏的前端附加垂直和水平两组微偏转线圈,通过控制微偏转线圈的电流,改变着屏点附近的磁场,使电子束着屏点的位置在一个粉点范围内精确连续可调。标准光栅的测试验证,系统绝对误差小于5m,表明该系统稳定可靠,一致性好。
|
| 关 键 词： | 自动测试系统 电子束着屏误差 彩色显示管 微偏转线圈 |
| 文章编号： | 1003-501X(2003)04-0042-04 |
| 收稿时间： | 2002/12/28 |
| 修稿时间： | 2002年12月28 |
An automatic testing system based on CCD for color display tube electron beam landing screen error |
| |
| BI Gang,LI Zhi-neng,ZENG Yu.An automatic testing system based on CCD for color display tube electron beam landing screen error[J].Opto-Electronic Engineering,2003,30(4):42-45. |
| |
| Authors: | BI Gang LI Zhi-neng ZENG Yu |
| |
| Abstract: | D automatic measurement of electron beam landing screen error is realized by means of CCD image sensor and image processing techniques. By attaching two groups of vertical and horizontal mini-deflection coil at front end of screen, through controlling current of mini-deflection coil and changing magnetic field near electron beam landing screen point, the position of the point is continuously adjustable within the range of a phosphor powder spot. Test of standard grating demonstrates that the system absolute error is less than 5 microns. This shows that the system is stable and reliable, and has a good consistency. |
| |
| Keywords: | Automatic measurement systems Electron beam landing screen error Color display tubes Mini-deflection coil |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
