作者：吕威, 孙杰

作者单位：辽宁石油化工大学机械工程学院, 辽宁 抚顺 113001

关键词：非接触测量; 线阵CCD; 二值化; 应力测量; 变形测量

摘要：

阐述了用线阵CCD传感器对材料拉伸变形量进行非接触测试的基本过程。介绍了CCD传感器测量变形量装置的基本原理。给出了采用数字图像处理技术非接触测量变形量的方法,包括图像的预处理,二值化等。该装置结构简单,可对材料进行非接触,无磨损式测量。通过对系统的标定证明了该系统的可靠性。讨论了影响CCD测量精度的各种因素。

Application of linear CCD sensor in material deformation test

LÜ Wei, SUN Jie

School of Mechanical Engineering, Liaoning University of Petroleum and Chemical Technology, Fushun 113001, China

Abstract: This paper expatiated the basic process of testing the deformation quantity of a material during stretching process by using linear CCD sensors in non-contact mode.It introduces the measuring principle.The non-contact measuring method of the deformation quantity was presented by means of the digital manipulation technology,including image pre-processing,and image binary-conversion,etc.The circuit of the system is simple,The non-contact and non-abrasion measurement for a material can be carried out.The reliability of the system is proved through the standardization.The various factors to influence measuring precision were discussed.

Keywords: Non-contact measurement; Linear CCD; Binary-conversion; Stress measurement; Deformation measurement

2006, 32(2): 139-141  收稿日期: 2005-10-26;收到修改稿日期: 2005-12-28

基金项目: 

作者简介: 

参考文献

[1] 王庆有.CCD应用技术[M].天津:天津大学出版社,2000:173-175.
[2] 贾云得.机器视觉[M].北京:科学出版社,2000:35-38.
[3] 陈向伟.基于CCD的齿轮参数测量系统的研究[J].工具技术,2004,38(5):44-46.
[4] 李庆扬.数值分析[M].武汉:华中科技大学出版社,1986:68-70.
[5] 孙玉杰.CCD输出信号差的分析与校正[J].应用光学,2003,24(2):24-26.
[6] 孙钊.线阵CCD测径装置的设计[J].应用光学,2003,24(2):31-33.
[7] 刘鸿文.材料力学[M].北京:高等教育出版社,1998:24-29.