New speckle pattern interferometry for precise in situ deformation measurements

作     者：章如月 Yu Fu 缪泓 Ruyue Zhang;Yu Fu;Hong Miao

作者机构：CAS Key Laboratory of Mechanical Behavior and Design of MaterialsDepartment of Modern MechanicsUniversity of Science and Technology of ChinaHefei 230027China Shenzhen Key Laboratory of Intelligent Optical Measurement and DetectionCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2024年第22卷第1期

页      面：34-40页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.11890683 and 11972235) 

主　　题：speckle pattern interferometry laser Doppler vibrometers in situ deformation measurements 

摘      要：A new electronic speckle pattern interferometry method is proposed to realize in situ deformation *** feature of the method is the combination of a high-speed camera and multiple laser Doppler vibrometers(LDVs)for synchronous *** high-speed camera is used to record and select effective interferograms,while the LDVs are used to measure the rigid body displacement caused by vibrations.A series of effective interferograms with known shifted phase values are obtained to calculate the deformation *** experimental results show that the method performs well in measuring static and dynamic deformations with high accuracy in vibrating environments.