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木材自动测量仪中图像传感器时序的设计(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2007年06期
Page:
105-108
Column:
研究论文
publishdate:
2007-06-20

Article Info:/Info

Title:
Design of Driving Time Circuit of Linear CCD of the Lignum Automatic Measurement
Article ID:
1000-2006(2007)06-0105-04
Author(s):
WU Hai-qing FENG Wei-zhong WANG Xiao-fei
College of Information Science and Technology Nanjing Forestry University, Nanjing 210037, China
Keywords:
CCD Time sequence driving circuit CPLD VHDL
Classification number :
S784;TP212
DOI:
10.3969/j.jssn.1000-2006.2007.06.025
Document Code:
A
Abstract:
In the instrument of lignum automatic measurement, the length of lignum was measured by CCD. The design of the time sequence driving circuit of CCD was a critical problem of its application. According to the complex programmable logic device, the method of designing the time sequence driving circuit was introduced. The CPLD was used as hardware design platform and VHDL was employed to describe the driving sequencer. The designed generator had successfully fulfilled system simulation with Quartus Ⅱ software and was fitted into MAX7000S. It was also observed by Oscilloscape. The simulation and the results of measurement demonstrated that this method is feasible. The time sequence was used to drive the CCD. This driving circuit of CCD was not only used by lignum automatic measurement but also by others CCD.

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Last Update: 2013-05-20