公开(公告)号：US5621523A

公开(公告)日：1997-04-15

申请号：US407283

申请日：1995-03-20

申请人： Koji Oobayashi ,  Satohiko Takanashi ,  Muneharu Ishikawa

发明人： Koji Oobayashi ,  Satohiko Takanashi ,  Muneharu Ishikawa

IPC分类号： G01N15/02 ,  G01J3/26 ,  G01J3/44 ,  G01N15/14

CPC分类号： G01N15/0205 ,  G01J3/4412 ,  G01J3/26 ,  G01N2015/0238 ,  G01N2021/4726

摘要： A particle-containing fluid in a sample cuvette is irradiated by a laser beam from a light source section. The scattered light thus produced passes through converging lenses and a mask and impinges on an etalon interferometer. The etalon only transmits scattered light (Rayleigh scattered light) that is of the same wavelength as the light emitted by the laser light source. The transmitted scattered light components impinges on a photomultiplier, and based on the intensity of the light a calculating section sorts the particles according to size and calculates the number of particles per unit flow amount, the particle size distribution and so forth. To enable adjustments to be made to compensate for the environmental dependency characteristics of the etalon, a control unit is provided which consists of a photodiode and mirrors.

摘要翻译： 来自光源部的激光束照射样品比色皿中含有颗粒的流体。 这样产生的散射光通过会聚透镜和掩模并撞击在标准具干涉仪上。 标准具只传输与激光光源发射的光波长相同的散射光（瑞利散射光）。 透射的散射光成分照射在光电倍增管上，根据光的强度，计算部根据大小排列粒子，计算出每单位流量，粒度分布等的粒子数。 为了进行调整以补偿标准具的环境依赖特性，提供了由光电二极管和反射镜组成的控制单元。