NSSC OpenIR  > 空间技术部
Alternative Titleimage feedback control system in the space drop evaporation experiment
于强; 宁乔; 朱志强; 袁章福; 北京8701信箱
Source Publication空间科学学报
Keyword蒸发速率 图像处理 反馈控制
Other AbstractIn this paper, a method to measure the drop evaporation velocity by image feedback control system is presented. The system is constituted of 3 parts: image acquisition, image processing,and feedback control. Analyzing drop pictures from the CCD camera, the physical features of the drop could be obtained, and evaporating volume could be calculated from the geometry differences between two pictures. To maintain the drop volume, drive the injector to inject dynamically. The evaporation velocity could be calculated by the evaporating volume per unit time. In order to determine the accurate contour of the dynamically changed drop, the contour approach principle is investigated and some numerical algorithms such as Laplace equation, Newton-Raphson method and Runge-Kutta method are introduced. Based on the drop contour determined from the contour approach, the volume and the surface area of drop could be calculated by numerical integral. The software structure and hardware structure of the system are described, an experiment result is given finally. The system is developed for the liquid eriment in SJ-10 recoverable satellite.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
于强,宁乔,朱志强,等. 蒸发液滴空间实验研究的图像反馈控制系统[J]. 空间科学学报,2008,28(1):64-68.
APA 于强,宁乔,朱志强,袁章福,&北京8701信箱.(2008).蒸发液滴空间实验研究的图像反馈控制系统.空间科学学报,28(1),64-68.
MLA 于强,et al."蒸发液滴空间实验研究的图像反馈控制系统".空间科学学报 28.1(2008):64-68.
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