【摘要】 介绍了一种新的实验力学方法——反射式高灵敏度云纹干涉法。本文首次采用高密度（６００线／毫米）位相型闪耀光栅的试件栅；在两相干准直光束对称地照射下，利用一次曝光的实时法和预加载波图样（１０—２０线／毫米）的两次曝光法，并用空间滤波手段分别获得了倍增系数为２的由载荷（或载荷差）所引起的构件表面Ｕ和Ｖ位移场云纹干涉条纹图样。提出了本实验的光路系统和实验装置，进行了典型性定量实验，给出了应用实例。更多还原

【Abstract】 This paper deals with reflective high-sensitivity moire interferometry, a new method of experimental mechanics. A phase-type blazed specimen grating of 600 lines/mm was for the first time used. Under the illumination of two coherent collimated beams, the real-time method and the double-exposure method with optical filtering were employed. The interference patterns of U- and V- displacement fields of the surface of test -piece caused only by the loading levels (or their difference) were obtained respectively. The fringe-multiplication factor was 2, carrier pattern being of 10-20 lines/mm. The typical experimental corroboration was presented and examples of application given.更多还原