【摘要】 风洞试验中,模型姿态的测量是影响数据精准度的一个重要因素,而测量上的一个微小变化,常常对实际应用价值造成巨大影响。当代测量技术发展的一个新领域是应用光学技术。概述了国外主要的风洞模型位移光学测量系统,包括测量依据、应用风洞、模型要求、数据后处理以及精度情况。这些测量系统应用于静态试验和动态试验中,用于模型位移、姿态角和弯曲变形的测量。从应用现状、应用环节、操作步骤、发展趋势等方面进行了描述,并给出了结论。比较这些模型位移光学测量技术可知它们各有优缺点,应用条件不一样。更多还原

【Abstract】 The measurement of model attitude in wind tunnel test is a important factor which infects the test data precision and data accuracy,a tiny change in measurement could take tremendous influence in appli-cation value.Applied optical technique is a new area developing in the modern measurement techniques.This paper presents the main optical model measuring systems abroad.These systems are applied in static and dy-namic wind tunnel tests,for measuring model displacement,attitude angle,bend and twist.Application in-stances,measuring principles,operating processes,developing trend and conclusions are given in this paper.The advantage and disadvantage of these optical model displacement measuring systems,with their application conditions are also discussed.更多还原