کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7131660 1461688 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Three-step interferometric method with blind phase shifts by use of interframe correlation between interferograms
ترجمه فارسی عنوان
روش سه گام تعاملی با تغییر فاز کور با استفاده از همبستگی بین فریم بین اینترفراوگرامها
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
چکیده انگلیسی
A new three-step interferometric method with blind phase shifts to retrieve phase maps (PMs) of smooth and low-roughness engineering surfaces is proposed. Evaluating of two unknown phase shifts is fulfilled by using the interframe correlation between interferograms. The method consists of two stages. The first stage provides recording of three interferograms of a test object and their processing including calculation of unknown phase shifts, and retrieval of a coarse PM. The second stage implements firstly separation of high-frequency and low-frequency PMs and secondly producing of a fine PM consisting of areal surface roughness and waviness PMs. Extraction of the areal surface roughness and waviness PMs is fulfilled by using a linear low-pass filter. The computer simulation and experiments fulfilled to retrieve a gauge block surface area and its areal surface roughness and waviness have confirmed the reliability of the proposed three-step method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 105, June 2018, Pages 27-34
نویسندگان
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