کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
735820 | 1461747 | 2006 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of the properties of a sharp-focusing schlieren system by means of Fourier analysis
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
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چکیده انگلیسی
The sharp-focusing schlieren system is analysed by means of a Fourier approach. The signal received in the imaging plane is governed by the phase distribution in a particular object plane normal to the optical axis, while the contributions from other planes in the object that are out-of-focus can be considered as noise. A numerical simulation performed for a specific test object shows that the best spatial resolution is obtained with a system of five channels and that further increase of the number of channels does not improve the signal quality.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 44, Issues 3–4, March–April 2006, Pages 159–169
Journal: Optics and Lasers in Engineering - Volume 44, Issues 3–4, March–April 2006, Pages 159–169
نویسندگان
Axel Hanenkamp, Wolfgang Merzkirch,