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Proceedings Paper

Low-density microporous polymeric foams measurement with digital microscopic image plane holography
Author(s): Qieni Lü; Baozhen Ge; Yongjie Wei; Qingguo Tian; Xiaojie Li; Yaolin Wei; Yimo Zhang
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Paper Abstract

A method for the measurement of low-density microporous polymeric foams with digital microscopic image plane holography is studied. An image plane hologram of microporous foam is recorded in an optical system of a Mach-Zender interferometer by CCD sensor, and the magnified image, which contains the quantitative information of the intensity and the phase of the microporous foam, is reconstructed numerically from the captured single interference pattern by twice fast Fourier transform and digital filter processing of frequency spectrum. And the morphometry and the pore diameter of the microporous foam under test can be obtained. A theoretical analysis has been performed and experimental results of the polymeric foam are also given. The experimental results show that the method presented in this paper is feasible, easy in data processing.

Paper Details

Date Published: 4 January 2008
PDF: 5 pages
Proc. SPIE 6832, Holography and Diffractive Optics III, 683211 (4 January 2008); doi: 10.1117/12.757522
Show Author Affiliations
Qieni Lü, Tianjin Univ. (China)
Baozhen Ge, Tianjin Univ. (China)
Yongjie Wei, Tianjin Univ. (China)
Qingguo Tian, Tianjin Univ. (China)
Xiaojie Li, Tianjin Univ. (China)
Yaolin Wei, Tianjin Univ. (China)
Yimo Zhang, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 6832:
Holography and Diffractive Optics III
Yunlong Sheng; Dahsiung Hsu; Chongxiu Yu, Editor(s)

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