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1. 发明申请

WO2012172524A1 METHOD AND PHOTOTHERMAL APPARATUS FOR CONTACTLESS DETERMINATION OF THERMAL AND OPTICAL PROPERTIES OF MATERIAL 审中-公开
标题翻译：用于连续测定材料的热和光学特性的方法和光热装置
公开(公告)号：WO2012172524A1
公开(公告)日：2012-12-20
申请号：PCT/IB2012/053043
申请日：2012-06-15
申请人： CONSEJO NACIONAL DE INVESTIGACIONES CIENTIFICAS Y TECNICAS (CONICET) , TOLKET S.R.L. , MARTINEZ, Oscar Eduardo , MINGOLO, Nélida
发明人： MARTINEZ, Oscar Eduardo , MINGOLO, Nélida
IPC分类号： G01N21/17 , G01N25/16
CPC分类号： G01N21/171 , G01N25/16
摘要： The material under testing is irradiated with a heating beam to deform the material surface forming a protrusion on the same. At the same time a measuring beam acts on the surface so that it is reflected by the protrusion, providing a beam scattered by the protrusion curvature that is detected by a small opening as a spatial filter located closer or farther than the confocal distance. The beam transmission through the disfocal opening varies according to the protrusion curvature induced by heating. The signal transmission allows determining the magnitude of the induced dilation. Said magnitude and its dependence on the modulation frequency allow determining physical properties as the dilation coefficient or the thermal diffusion coefficient, the coating film thickness or the incident light absorption coefficient on the heating beam. Varying the wavelength of the incident radiation it is possible to determine the absorption spectrum of the sample even for very small dimension particles wherein the absorbed energy fraction is negligible.
摘要翻译：用加热束照射被测试材料，使材料表面变形，形成突出物。同时，测量光束作用在表面上，使得其被突起反射，从而提供由通过小的开口检测的突起曲率散射的光束作为位于比共焦距离更靠近或更远的空间滤光器。通过非焦点开口的光束透射根据由加热引起的突起曲率而变化。信号传输允许确定诱导扩张的大小。所述幅度及其对调制频率的依赖性允许将物理性质确定为加热束上的扩张系数或热扩散系数，涂膜厚度或入射光吸收系数。改变入射辐射的波长，即使对于其中吸收的能量分数可忽略的非常小尺寸的颗粒，也可以确定样品的吸收光谱。

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