基于智能相机的小型数字剪切散斑干涉系统  

Smart-camera-based compact digital shearographic system

作　　者：马国峰[1] 吴思进[1] 杨连祥[2] 

机构地区：[1]北京信息科技大学仪器科学与光电工程学院,北京100192 [2]奥克兰大学机械工程系,美国密西根州罗彻斯特市48309

出　　处：《北京信息科技大学学报（自然科学版）》2017年第2期25-29,共5页Journal of Beijing Information Science and Technology University

基　　金：国家自然科学基金项目(51675055;11672045);国家重点研发计划重大科学仪器设备开发专项(2016YFF0101801)

摘　　要：设计了一种基于智能相机的小型数字剪切散斑干涉系统,采用智能相机代替传统的图像采集卡+计算机作为图像采集运算一体化装置,使其在相移技术的控制下采集多幅散斑干涉图,计算得到相位图以及反映物面变化的相位差图。实验表明,所设计的系统可靠性高,具有体积小、重量轻、结构简单等特点,可为将来数字剪切散斑干涉仪的小型化研究与应用提供参考。A smart-camera-based compact digital shearographic system is designed, in which smart camera rather than traditional frame grabber and computer was used as the image capture and proccessing unit. Multiple speckle interferograms were used to calculate phase map and phase difference map which is related to the object deformation, after they were grabbed under the control of phase-shift technique. Experimental results show that the system is robust and enjoys the advantages of small size, light weight and simple structure. The design provides reference for future study on miniaturization of digital shearographic system and its applications.

关 键 词：数字剪切散斑干涉 智能相机 无损检测 

分 类 号：O439[机械工程—光学工程]