小型绝对式光电编码器误码自动检测系统

发布时间：2018-09-01 05:27

【摘要】：在批量生产光电编码器时,对光电编码器是否存在误码进行检测是一个重要的环节。现有的检测方法采用二进制灯排手动转动编码器用肉眼进行观测,存在手动检测慢、肉眼观测误差较大、检测结果受转动速度影响等缺点。在大批量生产的光电编码器,采用传统方法进行误码检测费时费力。为解决编码器生产及使用过程中对光电编码器的自动误差检测,本文设计了小型光电编码器误码自动检测系统。首先,在参照大量光电编码器生产经验的基础上,分析了编码器误码产生的主要原因;然后,提出了基于微分算法实现对光电编码器是否存在误码进行判断的误码自动检测方法;最后,以FPGA为主控芯片,设计了小型光电编码器自动误码检测系统。该系统能够实现对光电编码器的高速数据采集、数据处理与误码判断,并将误码判断结果通过LCD液晶显示。同时,可以根据需要将数据传输到计算机中作进一步分析。检测实验表明:本文所设计的误码检测系统成功实现了对15位串/并口光电编码器在高速和低速下进行数据采集及误码判断。系统可用于批量生产下光电编码器的误码自动检测,减少了人工操作,提高了自动化程度。系统具有智能便捷,移动性强,适用于实验室及各种工作场合下的误码检测等优点,检测速度较以往检测方法提高了3~5倍。
[Abstract]:In batch production of photoelectric encoder, it is an important step to detect whether there is error code in photoelectric encoder. The existing detection methods use the binary lamp row manual rotary encoder to observe with the naked eye, which has the disadvantages of slow manual detection, large observation error of the naked eye, and the result is affected by the rotation speed, and so on. In the mass production of photoelectric encoder, the traditional method of error detection is time-consuming and laborious. In order to solve the problem of automatic error detection of photoelectric encoder in the process of production and use, this paper designs an automatic error detection system for small photoelectric encoder. Firstly, on the basis of a large number of experience in the production of photoelectric encoders, the main causes of encoder error are analyzed. An automatic error detection method based on differential algorithm is proposed to judge the existence of error code in photoelectric encoder. Finally, a small photoelectric encoder automatic error detection system is designed with FPGA as the main control chip. The system can realize the high-speed data acquisition, data processing and error code judgment of photoelectric encoder, and display the result of error code judgment through LCD liquid crystal. At the same time, the data can be transferred to the computer for further analysis. The experimental results show that the proposed error detection system has successfully realized the data acquisition and error detection of the 15 bit serial / parallel photoelectric encoder at high speed and low speed. The system can be used for error detection of photoelectric encoder in batch production, which reduces manual operation and improves automation degree. The system has the advantages of intelligence and convenience, strong mobility, and is suitable for error detection in laboratory and various workplaces. The detection speed is 3 ~ 5 times higher than that of the previous detection methods.
【作者单位】：中国科学院长春光学精密机械与物理研究所;中国科学院大学;
【基金】：国家自然科学基金资助项目(N0.51605465)~~
【分类号】：TN762

【相似文献】