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浏览/检索结果: 共3条，第1-3条 帮助 限定条件 发表日期：2010     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 光电编码器选型及同步电机转速和转子位置测量 期刊论文 2010, 2010 于庆广; 刘葵; 王冲; 袁炜嘉; 钱炜慷; 张程; Yu Qingguang; Liu Kui; Wang Chong; Yuan Weijia; Qian Weikang; Zhang Cheng 收藏  |  浏览/下载：4/0 永磁同步交流伺服驱动关键技术研究 学位论文 工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2010 作者:  秦晓飞 收藏  |  浏览/下载：94/0  |  提交时间：2015/09/02 交流伺服系统  矢量控制  自抗扰控制  M/T测速算法  电流采样  电压漂移  alternating-current servo system  vector control  active disturbance rejection control  M/T speed detection method  current sampling  voltage drift   The design of acquisition circuit for grating digital signal based on FPGA (EI CONFERENCE) 会议论文 2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China Jiang L.-F.; Wang W.-G. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 In order to resolve the poor suppression capability of noise and fitter interference existing in grating encoder high-rate subdivision and the poor accuracy of kam-to  counting circuit  the results show that the design method will help improve the controlled object of measurement precision and control accuracy. 2010 IEEE.  we design a circuit based on FPGA to realize multiplier  kam and filter for the output of two-way orthogonal signal generated by Incremental Optical Encoder. The system is mainly divided into three modules such as filtering  multiplier kam-to and counting. The main function of filter circuit is to eliminate the jitter and noise interference existing in the quadrate encoder signals. Kam-to multiplier circuit can accurately judge the full cycle and half-cycle of incremental encoder  at the same time can make fourfold multiplier. Counting circuit can use IP cores owned by Quartus II which is not restricted on the median. At last  timing simulation based on Modelsim carried on the three modules