公开(公告)号：US4577963A

公开(公告)日：1986-03-25

申请号：US547394

申请日：1983-10-31

Applicant: Vincenzo Traina

Inventor： Vincenzo Traina

IPC: G01N15/05 ,  G01N15/06 ,  G01N15/08 ,  G01N33/18 ,  G01N33/28 ,  G01P13/00 ,  G01P3/36

CPC classification number: G01P13/00 ,  G01N15/06 ,  G01N15/05 ,  G01N2015/084 ,  G01N2201/0484 ,  G01N2201/0492 ,  G01N33/18 ,  G01N33/28

Abstract: An apparatus to evaluate objectively the concentration and motility of particles suspended in a sample of liquid, and particularly to an apparatus to solve objectively the problem of evaluating these important characteristics in a very simple manner and in a short time by exploiting the Doppler effect. The sample to be examined is subjected to one of the two sub-beams resulting from the suitable division of a coherent monochromatic light beam emitted by a polarized LASER, while the other sub-beam is considered as a reference light sub-beam. Because of the very little difference between the frequencies of the original and scattered light a beat is originated in the rejoined two sub-beams which is dependent on the characteristics of the examined sample. Electromechanical means are provided to position automatically and sequentially a set of test-pieces to be examined according to a program and a data processor is provided to process the output signal of the rejoined sub-beams, so that the desired evaluations are displayed on a monitor or printed as alpha-numerical results and/or graphic diagrams. All of the mechanical, electromechanical, optical and data processor members are enclosed within a single box-container as component members of the apparatus.

Abstract translation: 一种客观评价悬浮在液体样品中的颗粒的浓度和运动性的装置，特别是用于通过利用多普勒效应以非常简单的方式和在短时间内客观地解决评估这些重要特征的问题的装置。 要检查的样品经受由偏振激光器发射的相干单色光束的适当划分而产生的两个子光束中的一个，而另一个子光束被认为是参考光子光束。 由于原始和散射光的频率之间的差异很小，所以在重新连接的两个子光束中产生了一个节拍，这取决于所检查样本的特性。 提供机电装置以根据程序自动和顺序地定位要检查的一组测试件，并且提供数据处理器来处理重新连接的子光束的输出信号，使得期望的评估显示在监视器上 或打印为字母数字结果和/或图形图。 所有机械，机电，光学和数据处理器构件被封装在单个箱形容器内作为装置的组件。