Method and device for suppressing multiple scattering when examining turbid media by means of three-dimensional cross-correlation technique
    2.
    发明授权
    Method and device for suppressing multiple scattering when examining turbid media by means of three-dimensional cross-correlation technique 有权
    通过三维互相关技术检测混浊介质时抑制多重散射的方法和装置

    公开(公告)号:US06873412B2

    公开(公告)日:2005-03-29

    申请号:US10301002

    申请日:2002-11-21

    摘要: The invention relates to a portable device for carrying out examinations of turbid media using a three-dimensional cross-correlation technique and for suppressing the influence of multiple scattering, as well as to an adjustment method for adjusting the device. The device has a base plate (1) upon which an adjustable laser (2) is positioned in tilting devices or by means of mirrors for directing the laser beam perpendicularly onto the wall of a cuvette (6) filled with a medium to be examined. The device is provided with a translucent plate (7) which in some sections is completely mirror-coated and in other sections is partially mirror-coated and which serves as a beam splitter (4). The plate is firmly secured to the base plate (1) using a positioning fixture (8) whose support surface (16) for the translucent plate (7) is situated at a fixed angle with respect to the base plate (1). The positioning fixture (8) is detachably secured to the base plate (1) and to a cuvette fixture having receptacles for the cuvette (6) and for a cylindrical translucent container (70) filled with a liquid which is situated on the base plate (1). Displacement devices for the cuvette fixture (5) which allow the cuvette to be continuously positioned are also mounted on the base plate. Tilting and displacement devices for at least two detection optics are situated so that they can be fixedly positioned on a base plate on the detection side of the device and so that this base plate can be firmly locked on the base plate (1). Photon multipliers and correlators for receiving cross-correlation or auto-correlation functions are also provided.

    摘要翻译: 本发明涉及一种使用三维互相关技术进行浑浊介质检查和抑制多次散射影响的便携式装置,以及用于调节装置的调整方法。 该装置具有基板(1),可调节的激光器(2)定位在倾斜装置上或借助于反射镜,用于将激光束垂直地引导到填充有待检测介质的比色杯(6)的壁上。 该装置设置有半透明板(7),其在一些部分中被完全镜面涂覆,并且在其它部分中被部分镜面涂覆并且用作分束器(4)。 使用其中透光板(7)的支撑表面(16)相对于基板(1)以固定角度定位的定位固定件(8)将板牢固地固定到基板(1)上。 定位夹具(8)可拆卸地固定到基板(1)上,并具有可拆卸地固定到具有用于试管(6)的容器的比色皿固定件和用于填充有位于基板上的液体的圆柱形半透明容器(70) 1)。 允许比色皿连续定位的比色皿固定装置(5)的位移装置也安装在基板上。 用于至少两个检测光学元件的倾斜和位移装置被定位成使得它们可以被固定地定位在装置的检测侧的基板上,并且使得该基板可以牢固地锁定在基板(1)上。 还提供了用于接收互相关或自相关函数的光子乘法器和相关器。