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    METHODS AND APPARATUS FOR DETERMINING PARTICLE CHARACTERISTICS BY MEASURING SCATTERED LIGHT
    1.
    发明申请
    METHODS AND APPARATUS FOR DETERMINING PARTICLE CHARACTERISTICS BY MEASURING SCATTERED LIGHT 审中-公开
    通过测量散射光确定颗粒特性的方法和装置

    公开(公告)号：US20080221814A1

    公开(公告)日：2008-09-11

    申请号：US11928095

    申请日：2007-10-30

    Applicant: Michael Trainer

    Inventor： Michael Trainer

    IPC: G06F19/00 ,  G01N21/00 ,  G06F17/15

    CPC classification number: G01B11/08 ,  G01N15/0211 ,  G01N15/042 ,  G01N2015/0216 ,  G02B6/32

    Abstract: An instrument for measuring the size and characteristics of a particle contained in a sample of particles. A particle sample is introduced into a sample chamber. The sample particles are subjected to centrifugal forces so that large particles travel in the sample chamber at velocities greater than small particles. Light is shown upon the particles as they travel in the sample chamber. The particles diffract the light. The diffracted light is then received by detectors that convert the diffracted light into corresponding electronic signals. The electronic signals are analyzed to determine the size and characteristics of the particles that caused the diffracted light.

    Abstract translation: 用于测量颗粒样品中包含的颗粒的尺寸和特性的仪器。 将颗粒样品引入样品室。 样品颗粒经受离心力，使得大的颗粒以大于小颗粒的速度在样品室中行进。 当颗粒在样品室中行进时，将其显示在颗粒上。 颗粒衍射光。 衍射光然后由将衍射光转换成相应的电子信号的检测器接收。 分析电子信号以确定引起衍射光的粒子的尺寸和特性。

    METHODS AND APPARATUS FOR DETERMINING PARTICLE CHARACTERISTICS BY MEASURING SCATTERED LIGHT
    2.
    发明申请
    METHODS AND APPARATUS FOR DETERMINING PARTICLE CHARACTERISTICS BY MEASURING SCATTERED LIGHT 审中-公开

    公开(公告)号：US20080218738A1

    公开(公告)日：2008-09-11

    申请号：US11930588

    申请日：2007-10-31

    Applicant: Michael Trainer

    Inventor： Michael Trainer

    IPC: G01N21/00 ,  G06F19/00

    CPC classification number: G01B11/08 ,  G01N15/0211 ,  G01N15/042 ,  G01N2015/0216 ,  G02B6/32

    Abstract: An instrument for measuring the size and characteristics of a particle contained in a sample of particles. A particle sample is introduced into a sample chamber. The sample particles are subjected to centrifugal forces so that large particles travel in the sample chamber at velocities greater than small particles. Light is shown upon the particles as they travel in the sample chamber. The particles diffract the light. The diffracted light is then received by detectors that convert the diffracted light into corresponding electronic signals. The electronic signals are analyzed to determine the size and characteristics of the particles that caused the diffracted light.

    METHODS AND APPARATUS FOR DETERMINING PARTICLE CHARACTERISTICS
    5.
    发明申请
    METHODS AND APPARATUS FOR DETERMINING PARTICLE CHARACTERISTICS 审中-公开
    用于确定颗粒特性的方法和装置

    公开(公告)号：US20140226158A1

    公开(公告)日：2014-08-14

    申请号：US14254958

    申请日：2014-04-17

    Applicant: Michael Trainer

    Inventor： Michael Trainer

    IPC: G01N15/02

    CPC classification number: G01N15/0205 ,  G01B11/08 ,  G01J3/0218 ,  G01J3/4412 ,  G01J3/453 ,  G01N15/042 ,  G01N21/474 ,  G01N2015/025 ,  G02B6/32

    Abstract: Apparatus and methods are described for determining information about at least one particle by measuring light scattered from the particles. Scattered light is detected from a region of a particle dispersion or from a larger region in a generally collimated illumination beam. Scattered light is also detected from a plurality of regions for improvement of repeatability.

    Abstract translation: 描述了通过测量从颗粒散射的光来确定关于至少一个颗粒的信息的装置和方法。 从大致准直照明光束的粒子分散区域或较大区域检测散射光。 还从多个区域检测散射光，以改善重复性。

    Methods and apparatus for determining the size and shape of particles
    6.
    发明授权
    Methods and apparatus for determining the size and shape of particles 有权
    用于确定颗粒尺寸和形状的方法和装置

    公开(公告)号：US07471393B2

    公开(公告)日：2008-12-30

    申请号：US10598443

    申请日：2005-03-07

    Applicant: Michael Trainer

    Inventor： Michael Trainer

    IPC: G01N15/02

    CPC classification number: G01N15/1459 ,  G01N15/0205 ,  G01N2015/1486 ,  G01N2015/1493 ,  G01N2015/1497

    Abstract: An instrument for measuring the size distribution of a particle sample by counting and classifying particles into selected size ranges. The particle concentration is reduced to the level where the probability of measuring scattering from multiple particles at one time is reduced to an acceptable level. A light beam is focused or collimated through a sample cell, through which the particles flow. As each particle passes through the beam, it scatters, absorbs, and transmits different amounts of the light, depending upon the particle size. So both the decrease in the beam intensity, due to light removal by the particle, and increase of light, scattered by the particle, may be used to determine the particle size, to classify the particle and count it in a certain size range. If all of the particles pass through a single beam, then many small particles must be counted for each large one because typical distributions are uniform on a particle volume basis, and the number distribution is related to the volume distribution by the particle diameter cubed.

    Abstract translation: 通过将颗粒计数和分选成选定的尺寸范围来测量颗粒样品的尺寸分布的仪器。 颗粒浓度降低到一次测量多个颗粒的散射的概率降低到可接受水平的程度。 光束被聚焦或准直通过样品池，颗粒流过该样品池。 当每个颗粒通过光束时，其散射，吸收和透射不同量的光，这取决于粒度。 因此，由颗粒的光除去引起的光束强度的降低和由颗粒散射的光的增加可以用于确定颗粒尺寸，对颗粒进行分类并将其计数到一定的尺寸范围。 如果所有的颗粒都通过单个光束，则对于每个大颗粒，必须对多个小颗粒进行计数，因为典型分布在颗粒体积基础上是均匀的，并且数量分布与颗粒直径立方体的体积分布相关。

    METHODS AND APPARATUS FOR DETERMINING CHARACTERISTICS OF PARTICLES
    7.
    发明申请
    METHODS AND APPARATUS FOR DETERMINING CHARACTERISTICS OF PARTICLES 审中-公开

    公开(公告)号：US20080204718A1

    公开(公告)日：2008-08-28

    申请号：US11924660

    申请日：2007-10-26

    Applicant: Michael Trainer

    Inventor： Michael Trainer

    IPC: G01N21/00

    CPC classification number: G01N15/0205 ,  G01N15/1459 ,  G01N15/1463 ,  G01N21/53 ,  G01N2015/025 ,  G01N2015/1486 ,  G01N2015/1493 ,  G01N2015/1497 ,  G01N2021/4707

    Abstract: An instrument for measuring the size distribution of a particle sample by counting and classifying particles into selected size ranges. The particle concentration is reduced to the level where the probability of measuring scattering from multiple particles at one time is reduced to an acceptable level. A light beam is focused or collimated through a sample cell, through which the particles flow. As each particle passes through the beam, it scatters, absorbs, and transmits different amounts of the light, depending upon the particle size. So both the decrease in the beam intensity, due to light removal by the particle, and increase of light, scattered by the particle, may be used to determine the particle size, to classify the particle and count it in a certain size range. If all of the particles pass through a single beam, then many small particles must be counted for each large one because typical distributions are uniform on a particle volume basis, and the number distribution is related to the volume distribution by the particle diameter cubed.

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