【摘要】 <正>一、基本原理文献[1]描述了转孔散斑照相法的基本原理，指出了应用于各种动态问题的可能性。本文将其应用于动态热形变问题，得到满意结果。转孔法的特点是非接触式测量、全场显示和反映全过程等；并且设备简单，操作方便，防震要求低，是研究动态热形变的有效工具。更多还原

【Abstract】 Rotating aperture method of speckle photography is applied to measure deformation of dynamic heating objects for the first time. The dynamic process can be recorded on a single speeklegram and can be resolved or reconstructed continuously by whole-field filtering. The quantitative analysis agrees well with results of other methods.更多还原