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Fabrication of Micro-Scale Speckles with Particle Dispersion Method
Optics
Volume 4, Issue 3-1, June 2015, Pages: 39-42
Received: Mar. 12, 2015; Accepted: Jun. 8, 2015; Published: Jan. 20, 2016
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Authors
He Guanglong, Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang, China
Zhu Jianguo, Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang, China
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Abstract
Micro-scale speckles with particle dispersion method are fabricated as the deformation carriers in the digital image correlation method. Micro-scale carbon particles are mixed with epoxy resin proportionally, followed by solidifying, centrifugal and spinning. In the end, a speckle film can be fabricated, which can be transferred to the surface of specimen. The quality of speckles is evaluated by the average gray gradient and the fabrication parameters including solidifying time, centrifuge speed, and spinning rate are studied and optimized.
Keywords
Micro-Scale Speckle, Digital Image Correlation Method, the Average Gray Gradient, Optical Measurement Mechanics
To cite this article
He Guanglong, Zhu Jianguo, Fabrication of Micro-Scale Speckles with Particle Dispersion Method, Optics. Special Issue: Optical Techniques for Deformation, Structure and Shape Evaluation. Vol. 4, No. 3-1, 2015, pp. 39-42. doi: 10.11648/j.optics.s.2015040301.19
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