四线电阻式触摸屏线性度测试的研究  

Research on testing linearity of resistant touch panel

作　　者：梁红飞[1] 刘建成[1] 

机构地区：[1]中南大学信息科学与技术学院

出　　处：《传感器世界》2008年第11期22-25,共4页Sensor World

基　　金：湖南省自然科学基金资助项目(项目编号:04JJ6036)

摘　　要：本文提出一种测试电阻式触摸屏线性度的方法。该方法将接触点的坐标集合转换到与之等价的电压集合,简化测试流程,提高了测试精度。同时,该方法首次提出纠偏算法,在一定程度上解决了触摸屏测试时有偏移情况下的精度问题,并对测试中的典型噪声进行分析并提出针对性的除噪方法。实验结果表明,该方法提高了测试速度和测试精度,可以满足实际测试应用。A test method for linearity of resistant touch panel was provided. This method simplified the test process and improved the test precision by exchanging touch point aggregate to equal voltage point aggregate. Meanwhile, an adjusting algorithm helping to correcting test error of slantwise resistant touch panel in test process was brought forward at first time. At last, some typical noises were analyzed and the corresponding eliminating methods were presented. The results show that this method can improve the test speed and the test precision.

关 键 词：触摸屏 线性度 独立直线 纠偏处理 

分 类 号：TP334.3[自动化与计算机技术—计算机系统结构]