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针对风洞试验中轨迹测量问题,设计了由3个一维线阵CCD成像单元组成的实时空间位移测量系统。提出了一种基于特征边缘提取的组合特征定位WBT算法,可以有效提高系统精确度和抗振动干扰能力。应用该系统在风洞中测量了覆冰导线的舞动轨迹,完成了导线舞动规律研究。
In order to solve the problem of track measurement in wind tunnel test, a real-time spatial displacement measurement system composed of three one-dimensional linear CCD imaging units is designed. A combined feature location WBT algorithm based on feature edge extraction is proposed, which can effectively improve system accuracy and anti-vibration ability. The system was used to measure the dancing track of the iced conductor in the wind tunnel, and the research on the dancing rule of the conductor was completed.