Optimization of Interferogram Phase Unwrapping Technology in FPDI

摘要：

An advanced fiber point diffraction interferometer (FPDI) for measuring spherical surface has been introduced. The phase unwrapping technique of interferogram processing is very important for testing accuracy and the optimization method is studied in this paper. By analyzing the interferogram characteristics of FPDI and the basic principles of unwrapping phase, the least-square unwrapping algorithm based on preprocessing residual error points is developed and used in phase unwrapping of FPDI. The results show that this algorithm can eliminate most of the residual points and obtain continuous phase distribution with strong robustness and practicality. The work has great significance for FPDI and other interferometer design.

关键词： Fiber point diffraction Unwrapping algorithm Optimization

作者: Nie Liang Jiang Xu

作者单位: School of Opto-electronics Engineering Xi an Technological University Xian, 710032, China Xian Institute of Applied Optics Xian, 710065, China

会议类型: 国际会议

会议名称: 2010 International Asia Conference on Optical Instrument and Measurement(2010年IEEE光学仪器与测量国际会议 ACPIM 2010)

会议地点: 深圳

会议语种:英文

页码: 103-106

在线出版日期: 2010-11-20（万方平台首次上网日期，不代表论文的发表时间）