| PIV图像粒子像斑定位偏差综合评估试验及其测速误差评估 |
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| 引用本文： | 董守平,双凯.PIV图像粒子像斑定位偏差综合评估试验及其测速误差评估[J].实验力学,1997,12(1):98-104. |
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| 作者姓名： | 董守平 双凯 |
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| 作者单位： | 石油大学机电工程系 |
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| 摘 要： | 本文针对ＰＩＶ技术的直接测量法中图像的可读性和可测性，讨论了从模拟图像到数字图像，最后到粒子像斑中心位置的确定过程中的误差规律；并提出了一种称之为粒子像斑定位偏差综合评估的试验方法。
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| 关 键 词： | 粒子成像测速 误差评估 定位偏差 流体速度 |
A Study of Positional Error Testing and Estimating in Particle Sports of PIV Image |
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| Dong Shouping,Shuang Kai.A Study of Positional Error Testing and Estimating in Particle Sports of PIV Image[J].Journal of Experimental Mechanics,1997,12(1):98-104. |
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| Authors: | Dong Shouping Shuang Kai |
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| Abstract: | The paper,which is aimed at the readable and measurable of PIV image with dirtect measurement,discusses the error law in the procedure among analog image acquisition and the central position of a particle spot and proposes a testing method used to estimate positional error of particle spot.The testing method provides a method that determines quantitatively deviation from real value in procedure of particle positional measuerment.Finally ,the testing method is applied to the PIV real time acquiring and processing system which is developed by authors to estimate the positional error of particle spots. |
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| Keywords: | particle image velocity error estimation positional error |
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