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。
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.
出处
《机电工程》
CAS
2012年第2期180-182,195,共4页
Journal of Mechanical & Electrical Engineering
