强激光与粒子束2012，Vol.24Issue(10)：2291-2295,5.DOI:10.3788/HPLPB20122410.2291
基于数字全息干涉的实时微振动检测
Real-time micro-vibration testing based on digital holographic interferometry
摘要
Abstract
An experimental system based on digital holographic interferometry is proposed for real-time high-precision micro-vibration measurement. Vibration information can be extracted directly and instantaneously from the hologram by using fast micro-vibration testing algorithm. As the received light of the proposed system is the scattered light, the proposed system approach no assumptions on object surface feature and receiving angles. The feasibility of the proposed system is demonstrated by u-sing a vibrating object driven by standard sinusoidal signals. The result demonstrates that the measured amplitude can be output in real time (the processed time is about 0. 11 ms). It also reveals that the measured amplitude from 550 to 2700 Hz is steady, with an output difference of 1. 66%. The proposed system provides an effective way to quantitatively analyze the amplitude of micro-vibration.关键词
数字全息/实时/微振动测量/频率响应/输出误差Key words
digital holography/ real-time/ measurement of micro-vibration/ frequency response/ output error分类
信息技术与安全科学引用本文复制引用
李建毅,肖文,潘锋,丛琳,王璠璟..基于数字全息干涉的实时微振动检测[J].强激光与粒子束,2012,24(10):2291-2295,5.基金项目
国家自然科学基金项目(61177006) （61177006）
