摘要
近年来,在数字散斑干涉技术(DSPI)中应用空间载波技术来获取干涉相位,克服了传统DSPI只能用于静态测量的缺点,提高了DSPI的测量速度,实现了动态测量。基于空间载波技术的DSPI测量理论已有相应的研究,但其光路参数的确定和优化还有待进一步的研究。通过分析空间载波数字散斑干涉技术的测量原理,对空间载波数字散斑干涉光路中的关键参数(如光阑孔径、参考光入射角度)进行了理论分析和试验验证,并给出了各自的选择依据。
In recent years, tile spatial carrier technology has been applied in digital speckle pattern interferometry （DSPI） to obtain interferometric phase, thus the disadvantage of traditional DSPI that is only used for static measurement is overcome, and the measurement speed of DSPI is increased for implementing dynamic measurement. The measurement theory of the DSPI based on spatial carrier technology has been researched, but the determination and optimization of the parameters of optical path need to be studied in further. Through analyzing the measurement principle of spatial carrier DSPI, theoretical analysis and experimental verification for the critical parameters of optical path, such as aperture size and incidence angle of reference beam are conducted, and the basis of selection is given respectively.
出处
《自动化仪表》
CAS
2015年第9期38-41,共4页
Process Automation Instrumentation
基金
国家自然科学基金资助项目(编号:51275054)
北京市自然科学基金资助项目(编号:3144028)
关键词
数字散斑干涉
空间载波技术
傅里叶变换
形变测量
Digital speckle pattern interference Spatial-carrier technique Fourier trandorm Deformation measurement
