کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1537639 1512640 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two wavelength simultaneous DSPI and DSP for 3D displacement field measurements
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Two wavelength simultaneous DSPI and DSP for 3D displacement field measurements
چکیده انگلیسی

A novel optical system is proposed that implements digital speckle pattern interferometry (DSPI) and digital speckle photography (DSP) simultaneously using two wavelength illumination of an object for simultaneous measurement of all three components of the displacement vector field. A collimated red light illuminates both the object and a reference surface in a DSPI configuration which is sensitive to out-of-plane displacement field while a blue light illuminates the object in a DSP configuration which is sensitive to in-plane displacement fields. A color 3-CCD camera records the red and blue lights individually through its red and blue channels, respectively. Two reference images and one image in the deformed state of the object are required for quantitative measurement. Experimental results are presented to validate the system.

Research Highlights
► A system for the simultaneous 3D displacement components measurement is presented.
► Only three images are required for quantitative measurements.
► System is suitable for measuring small out-of-plane and large in-plane displacements.
► The system is also suitable for dynamic measurement.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 284, Issues 10–11, 15 May 2011, Pages 2437–2440
نویسندگان
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