| 基于重心法的螺旋线螺距测量系统 |
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| 引用本文： | 徐造林.基于重心法的螺旋线螺距测量系统[J].仪表技术,2001(5):28-29,53. |
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| 作者姓名： | 徐造林 |
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| 作者单位： | 东南大学,计算机科学与工程系,江苏,南京,210096 |
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| 摘 要： | 介绍成象放大法螺旋线螺距测量系统，采用线阵CCD图像传感器，采集螺旋线放大图像，经高速模数转换器转换成数字信号，存入双端口RAM。提出了对图像数据进行一阶微分并求其局部重心点作为其边缘特征点，以提高测量稳定性和测量精度。
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| 关 键 词： | 螺距测量 双端口RAM 模数转换 CCD图像传感器 重心法 |
Measuring System for Spiral Span with the Local Center of Gravity |
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| XU Zao,lin.Measuring System for Spiral Span with the Local Center of Gravity[J].Instrumentation Technology,2001(5):28-29,53. |
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| Authors: | XU Zao lin |
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| Abstract: | This paper introduces the system for the spiral span measurement using image formation and magnification. The linear CCD image sensor is used to receive the spiral magnification image and translate it into electric signal. Then the digital signal would be memorized in double ports RAM. It gets the first order differential of the image data and acquires its local center of gravity as characteristics of the edge so as to improve the accuracy and stability. |
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| Keywords: | spiral span measurement double ports RAM analog digit translation CCD image sensor |
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