摘要
本文将云纹干涉法与载波法、倍增技术相结合,提出一种位移场和应变场云纹干涉条纹倍增方法,该方法使得云纹干涉法测量灵敏度提高四倍以上。文中对该方法给出了严格的理论推导和实验验证。
A ingenious combination of moire interferometry, carrier method and multiplication techniques is first proposed for multiplying moire interferometry fringes, including displacement fields and strain fields. The measuring sensitivity of moire interferometry method may be raised hy more than 4 times, by this multiplication method. Rigorous theoretical analysis is given. Experimental demonstration is conducted successfully in this paper.
出处
《力学学报》
EI
CSCD
北大核心
1993年第2期193-200,T001,共9页
Chinese Journal of Theoretical and Applied Mechanics
基金
国家自然科学基金
清华大学结构工程与振动开放实验室资助
关键词
云纹干涉法
载波
倍增技术
错位
moire interferometry, carrier, multiplication, grating frequency, shearing
