Study on Displacement Measurement for Induced Strain Field Based on Digital Speckle Pattern Interferometry Method
Digital Speckle Pattern Interferometry ( DSPI for short ) method has become one of the most practical worthy techniques for speckle measuring methods with the high-speed development of optic-electronical technique, image processing technology and electronic computer technology. There is a lot of advantages about it, such as uncomplicated operation, noncontacting, advanced automatic level, measurement on-line and extensive using. In this thesis, the displacement variation of the induced strain field for driving by piezoelectric ceramics can be measured by using this method. Thus we can come to a conclusion that digital speckle pattern interferometry is a new measuring method for extracting small-signal. It also provides a powerfully theoretical and experimental platform for study of automated, full-field, high-precision and nondestructive measurement.
digital speckle interferometry image processing extracting small-signal precision measurement
Liu Jing Zhang Hui Li Jun Chen Dachuan Tang Yankun
Department of Electrician and Electron Aviation University of Air Force Changchun, China
国际会议
重庆
英文
1-4
2011-12-01（万方平台首次上网日期，不代表论文的发表时间）