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An active base designed in high-counting-rate applications for Hamamatsu R1924A photomultiplier tube 期刊论文  OAI收割
NUCLEAR SCIENCE AND TECHNIQUES, 2017, 卷号: 28, 页码: 5
作者:  
Han, Rui;  Liu, Xing-Quan;  Luo, Fei;  Ren, Pei-Pei;  Lin, Wei-Ping
  |  收藏  |  浏览/下载:39/0  |  提交时间:2018/05/31
HEPS-BPIX, a single photon counting pixel detector with a high frame rate for the HEPS project 期刊论文  OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2016, 卷号: 835, 页码: 169
作者:  
Wei W(魏微);  Zhang J(张杰);  Ning Z(宁哲);  Lu YP(卢云鹏);  Fan L(樊磊)
  |  收藏  |  浏览/下载:37/0  |  提交时间:2017/07/27
The design of acquisition circuit for grating digital signal based on FPGA (EI CONFERENCE) 会议论文  OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
作者:  
Wang W.-G.
收藏  |  浏览/下载:37/0  |  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