کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5007432 | 1461607 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The depth measurement of internal defect based on laser speckle shearing interference
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Speckle shearing interference has been widely used in non-destructive testing (NDT) as a useful NDT tool for its é¿advantages such as full-field, non-contacting measurement and so on. It reveals internal defect of an object by identifying defect-induced deformation anomalies. The location and size of internal defects are critical factors in determining the stability of the performance and the service life of the workpiece. This paper put forward a method of the depth measurement of internal defect based on laser speckle shearing interference. The measurement of defect depth is achieved by establishing the mechanical model which contains defect depth, out-of-plane displacement and load conditions, etc., and combining the relevant image information obtained from speckle pattern. The measurement error is less than 10%. The experiments demonstrate that it has a good consistency between the actual depth and the measurement result obtained by the method of this paper.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 92, 1 July 2017, Pages 69-73
Journal: Optics & Laser Technology - Volume 92, 1 July 2017, Pages 69-73
نویسندگان
Yanhua Peng, Guixiong Liu, Yanming Quan, Qilin Zeng,