增强聚合物不均匀性的光声检测

IF 1.2 Q3 PHYSICS, MULTIDISCIPLINARY

Papers in Physics Pub Date : 2013-05-07 DOI:10.4279/PIP.050005

P. Grondona, H. O. Rocco, D. Iriarte, J. Pomarico, H. Ranea-Sandoval, G. Bilmes

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引用次数: 0

摘要

我们报道了在混浊聚合物样品中进行激光脉冲光声激励的一系列实验，以评估样品中的声速和体中不均匀性的存在。我们描述了一种系统，该系统允许通过在所研究的工件表面雕刻带有黑线的信任模式来直接测量被检测波的速度。我们还描述了这种模式如何有助于提高检测批量不均匀性的灵敏度。这两个事实对软物质系统的研究很有用，可能包括生物样品。我们对不同情况下的Grilon®样品进行了实验分析，并显示了该方法的局限性。收稿日期:2012年12月7日，收稿日期:2013年6月19日;审评人:V. Lakshminarayanan，滑铁卢大学，加拿大;编辑:j·j·尼梅拉;引用自:p.g rondona, h.o. Di Rocco, d.i. Iriarte, j.a. Pomarico, h.f. Ranea-Sandoval, g.m. Bilmes，《物理学论文》5,050005 (2013)

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Enhancement of photoacoustic detection of inhomogeneities in polymers

We report a series of experiments on laser pulsed photoacoustic excitationin turbid polymer samples addressed to evaluate the sound speed in the samples and the presence of inhomogeneities in the bulk. We describe a system which allows the direct measurement of the speed of the detected waves by engraving the surface of the piece under study with a fiduciary pattern of black lines..We also describe how this pattern helps to enhance the sensitivity for the detection of an inhomogeneity in the bulk. These two facts are useful for studies in soft matter systems including, perhaps, biological samples. We have performed an experimental analysis on Grilon® samples in different situations and we show the limitations of the method. Received: 7 December 2012, Accepted: 19 June 2013; Reviewed by: V. Lakshminarayanan, Waterloo University, Canada; Edited by: J. J. Niemela; DOI: http://dx.doi.org/10.4279/PIP.050005 Cite as: P. Grondona, H. O. Di Rocco, D. I. Iriarte, J. A. Pomarico, H. F. Ranea-Sandoval, G. M. Bilmes , Papers in Physics 5, 050005 (2013)

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来源期刊

Papers in Physics PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.90

自引率

0.00%

发文量

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