公开(公告)号：US5900933A

公开(公告)日：1999-05-04

申请号：US89478

申请日：1998-06-02

申请人： Friedel Herbert Schwartz ,  Michael Braun

发明人： Friedel Herbert Schwartz ,  Michael Braun

IPC分类号： G01N15/02 ,  G01N21/00

CPC分类号： G01N15/0205

摘要： Apparatus for analysing particle dimensions of particles contained in a fluid with an illuminating device for illuminating the particles to be analysed, incorporates a source for generating light. An optical system is disposed between the source and the fluid with a fluid-side window transparent to the light, which focusses the light on the opposite side of the window in the fluid and displaces the focal point along a path running around a center line of the apparatus. A detector device detects the light scattered by the particles and generates an electric signal dependent on the scattered light. A housing is provided between the fluid and the illuminating device and/or the detector device, with an analysis unit for determining the size and/or the size distribution of the particles. A device for setting the distance between the focal point and the window can be dispensed with if the optical system incorporates at least one stationary interface relative to the housing when it is in operation, which is disposed non-rotationally symmetrical in relation to the center line of the apparatus.

摘要翻译： 用于分析包含在流体中的颗粒的颗粒尺寸的装置包括用于照射待分析颗粒的照明装置，其包括用于产生光的源。 光学系统设置在源和流体之间，具有对于光透明的流体侧视窗，其将光聚焦在流体中的窗口的相对侧上，并且沿着围绕中心线的中心线 该装置。 检测器装置检测由颗粒散射的光，并根据散射光产生电信号。 在流体和照明装置和/或检测器装置之间设置有用于确定颗粒的尺寸和/或尺寸分布的分析单元的壳体。 如果光学系统在操作中包括至少一个相对于壳体的固定界面，则设置用于设置焦点和窗口之间的距离的装置，其相对于中心线设置为非旋转对称的 的装置。