计量光栅信号质量综合评价系统  

A comprehensive estimating system for signal quality of metrological grating

作　　者：李红军[1] 吴凡[1] 刘恩海[1] 

机构地区：[1]中国科学院光电技术研究所,四川成都610209

出　　处：《光电工程》2002年第4期35-38,共4页Opto-Electronic Engineering

基　　金：863高技术课题

摘　　要：光电轴角编码器中的莫尔条纹信号质量决定了整个系统的细分精度。计量光栅信号质量综合评价系统由编码器、数据采集卡和相应的软件组成,采用一种以莫尔信号离散采集和数据处理为主的数字化检测方法,实现对莫尔条纹信号质量各项指标的评价,对提高测量精度以及光栅系统的设计具有一定意义。The signal quality of Moire fringe in photoelectric shaft encoder determines the subdivision accuracy of the whole system. A comprehensive estimating system for signal quality of metrological grating consists of encoder, data sampling card and the corresponding software. A digital detection method using discrete sampling Moire signal and data processing as its main means is adopted and the evaluation for various specifications of Moire fringe quality is carried out. This has some significance for improving measurement accuracy and the design of grating system.

关 键 词：光栅信号 质量 莫尔条纹 谐波分析 轴角编码器 计量光栅 传感器 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]