流场显示中的NYAB激光动态剪切干涉术  

Dynamic shearing interferometry with NYAB laser in flow visualization

作　　者：明海[1] 伍永安 王奎[1] 尹协振[1] 谢建平[1] 黄奕川 陈光[2] 

机构地区：[1]中国科学技术大学,合肥230026 [2]中国科学院福建物构所,350002

出　　处：《中国激光》1991年第8期633-635,共3页Chinese Journal of Lasers

摘　　要：本文报道把微型的NYAB(硼酸钕钇铝)自倍频激光器用于风洞流场动态剪切干涉测量的工作。The shearing interferometry of holographic doublng grating byNd Y1-x A13(BO3)4(NYAB) laser to measure flow field of shook tunnel with M=4.46 is reported. The quantitative evaluation of a shearing interferogram for an axisymmetrie density field on a 15 half angle cone is performed and the result is compared with theoretical values.

关 键 词：风洞流场 测量 剪切干涉术 激光器 

分 类 号：TH744.5[机械工程—光学工程]