| 提高CCD糖液浓度测量系统精度的方法 |
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| 引用本文： | 林海棠,殷建军,项祖丰,汤健彬.提高CCD糖液浓度测量系统精度的方法[J].机电工程,2012,29(2):180-182,195. |
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| 作者姓名： | 林海棠 殷建军 项祖丰 汤健彬 |
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| 作者单位： | 1. 浙江工业大学机械工程学院,浙江杭州,310014
2. 浙江工业大学信息工程学院,浙江杭州,310014 |
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| 摘 要： | 为了实现糖液浓度的在线精密测量，在分析CCD测量原理的基础上，开发了基于ARM的糖液浓度测量系统，并分析了测量系统误差及对精度的影响；通过研究CCD信号边缘梯度特性，应用多项式插值的亚像素边缘检测算法提高了像素定位精度。实验结果表明，与传统的折光仪相比，该系统具有较高的分辨率和测量精度。
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| 关 键 词： | 糖液浓度 线阵CCD 亚像素 误差分析 |
Method of improving accuracy of CCD sugar concentration measurement system |
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| LIN Hai-tang
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YIN Jian-jun
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XIANG Zu-feng
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TANG Jian-bin.Method of improving accuracy of CCD sugar concentration measurement system[J].Mechanical & Electrical Engineering Magazine,2012,29(2):180-182,195. |
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| Authors: | LIN Hai-tang YIN Jian-jun XIANG Zu-feng TANG Jian-bin |
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| Affiliation: | 1. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; 2. College of Information Engineering, Zhejiang University of Technology, Hangzhou 310014, China) |
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| Abstract: | To realize on-line precision measurement of sugar concentration,a measurement system integrated ARM of sugar concentration was developed by analyzing CCD philosophy of measurement,then the measuring system error was analyzed which had an effect on precision. The characteristic of edge gradient of CCD was analyzed,the algorithms of sub-pixel edge detection which applied the polynomial interpolation was used to improve the positioning accuracy of pixel. The experimental result shows that this system possesses superior resolution and measurement accuracy, compared to the traditional refractometer. |
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| Keywords: | sugar concentration linear CCD sub-pixel error analysis |
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