本文叙述了本实验室所采用的激波管风洞中模型自由飞高速照相来获得静气动力系数的原理、方法及有关的实验技术,并着重对数据的精度作了讨论。作为例子,文章还列出了标定球和θ_0=10°园锥的实验结果。实践表明。自由飞测力技术是一种简便易行的方案,特别是所介绍的压力中心位置测定方法可有较高的精度。 This paper describes the principle, method and related experimental techniques of free-flying high-speed photographing in the shock tube wind tunnel used in this laboratory to obtain the aerodynamic coefficient. The accuracy of the data is also discussed. As an example, the article also lists the experimental results of calibrating the sphere and θ_0 = 10 ° cone. practice shows that. Free-flight force measurement technology is a simple and easy solution. In particular, the proposed method for measuring the pressure center position has higher accuracy.