| 利用线阵CCD非接触测量材料变形量的方法 |
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| 引用本文： | 王庆有,于涓汇,郭青,张盛彬.利用线阵CCD非接触测量材料变形量的方法[J].光电工程,2002,29(4):20-23. |
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| 作者姓名： | 王庆有 于涓汇 郭青 张盛彬 |
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| 作者单位： | 天津大学精密仪器与光电子工程学院, 天津,300072;光电信息技术科学教育部重点实验室,天津,300072 |
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| 摘 要： | 用线阵CCD作为光电传感器非接触测量材料拉伸过程中的变形量，不但比常规的引伸计测量的方法更客观，而且可以测量材料拉伸变形到断的全过程。该方法能在X和Y两上方向上同时测量材料变形量，可以获得材料在实验的全过程中两上方向的“应力－应变”关系曲线。采用CCD拼接技术，测量精度可达到1μm，测量范围80mm。
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| 关 键 词： | CCD 非接触测量 材料变形量 应力测量 材料拉伸实验 |
| 文章编号： | 1003-501X(2002)04-0020-04 |
| 收稿时间： | 2001/10/18 |
| 修稿时间： | 2001年10月18 |
A method for measuring material deformation with linear CCD detectors |
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| WANG Qing-you,YU Juan-hui,GUO Qing,ZHANG Sheng-bin.A method for measuring material deformation with linear CCD detectors[J].Opto-Electronic Engineering,2002,29(4):20-23. |
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| Authors: | WANG Qing-you YU Juan-hui GUO Qing ZHANG Sheng-bin |
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| Abstract: | Measurement of the deformation quantity of a material during stretching process by using linear CCD detectors in non-contact mode, not only is more objective than the common extensometer measurement method, but also can measure the whole process from stretching deformation to breaking .The deformation quantity of a material can be simultaneously measured at both direction of X and Y and the stress-strain curves of the both direction during the whole experimental process of a material can be obtained. With CCD splicing technique, the measuring accuracy can be reached 1mm and measuring range 80mm. |
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| Keywords: | Non-contact measurement Liner CCD Stress measurement Deformation measurement |
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