张征宇, 喻波, 罗川, 孙岩, 周桂宇, 黄诗捷. 2.4m跨声速风洞的模型位移视频测量精度研究[J]. 实验流体力学, 2011, 25(4): 79-82. DOI: 10.3969/j.issn.1672-9897.2011.04.015
引用本文: 张征宇, 喻波, 罗川, 孙岩, 周桂宇, 黄诗捷. 2.4m跨声速风洞的模型位移视频测量精度研究[J]. 实验流体力学, 2011, 25(4): 79-82. DOI: 10.3969/j.issn.1672-9897.2011.04.015
ZHANG Zheng-yu, YU Bo, LUO Chuan, SUN Yan, ZHOU Gui-yu, HUANG Shi-jie. Precision investigation on model displacement videogrammetric measurement in 2.4m transonic wind tunnel[J]. Journal of Experiments in Fluid Mechanics, 2011, 25(4): 79-82. DOI: 10.3969/j.issn.1672-9897.2011.04.015
Citation: ZHANG Zheng-yu, YU Bo, LUO Chuan, SUN Yan, ZHOU Gui-yu, HUANG Shi-jie. Precision investigation on model displacement videogrammetric measurement in 2.4m transonic wind tunnel[J]. Journal of Experiments in Fluid Mechanics, 2011, 25(4): 79-82. DOI: 10.3969/j.issn.1672-9897.2011.04.015

2.4m跨声速风洞的模型位移视频测量精度研究

Precision investigation on model displacement videogrammetric measurement in 2.4m transonic wind tunnel

  • 摘要: 风洞试验中模型的位置和变形测量对试验数据精准度至关重要.为此,创建2.4m跨声速风洞的模型位移视频测量系统,提出度量其测量误差的方法,并实验研究其测量精度.研究发现,试验中的振动对测量精度影响极大,采用振动环境中相机位、姿解算方法后,试验段底部的编码标记点的测量误差从22.80~48.48mm降至0.03~0.64mm.

     

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