Apparatus for characterizing and measuring the concentration of opaque particles within a fluid sample
    1.
    发明授权
    Apparatus for characterizing and measuring the concentration of opaque particles within a fluid sample 有权
    用于表征和测量流体样品中不透明颗粒浓度的装置

    公开(公告)号:US07394545B2

    公开(公告)日:2008-07-01

    申请号:US11178846

    申请日:2005-07-11

    IPC分类号: G01N21/00

    摘要: A system and method for counting opaque particles within a fluid sample. The system uses an optical lens system to focus a light beam onto a sample on a multi-dimensional translation stage. The translation stage is moved in a pattern such that the intensity of the transmitted light is measured as a function of path length. A photo detector is used to measure the transmitted light through the sample. An analog-to-digital converter quantifies the transmitted light intensity. Changes in light intensity along the path length are correlated with the detection of an opaque particle. Data processing algorithms are implemented to automatically determine the background noise level associated with the acquired data and to set a discriminator level above which a particle is registered. The total number of particles and an areal density is reported along with an estimate of the uncertainty.

    摘要翻译: 用于计算流体样品中不透明颗粒的系统和方法。 该系统使用光学透镜系统将光束聚焦到多维平移台上的样本上。 翻译阶段以使得透射光的强度作为路径长度的函数被测量的图案移动。 光检测器用于测量通过样品的透射光。 模数转换器量化透射光强度。 沿着路径长度的光强度的变化与不透明粒子的检测相关。 实现数据处理算法以自动确定与所获取的数据相关联的背景噪声电平,并设置高于该阈值的鉴别器电平。 报告颗粒的总数和面积密度以及不确定性的估计。

    Diamond-based, self-sampling internal reflection element for on-line
analysis of materials in a recycle stream
    3.
    发明授权
    Diamond-based, self-sampling internal reflection element for on-line analysis of materials in a recycle stream 失效
    基于钻石的自取样内反射元件,用于在循环流中的材料进行在线分析

    公开(公告)号:US5326972A

    公开(公告)日:1994-07-05

    申请号:US37146

    申请日:1993-03-25

    申请人: Peter J. Codella

    发明人: Peter J. Codella

    IPC分类号: G01N21/55 G01N21/35 G01N21/01

    CPC分类号: G01N21/552

    摘要: An element which is used to identify materials, such as, thermoplastics and sort these thermoplastics on a moving conveyor belt. Such structures of this type, generally, employ a diamond knife (or point) for use as an internal reflection element to obtain the mid-infrared spectrum of the material sliced (or punctured) by the knife (or point).

    摘要翻译: 用于识别材料的元素,例如热塑性塑料,并将这些热塑性塑料分类在移动的传送带上。 这种类型的这种结构通常采用金刚石刀(或点)用作内部反射元件,以获得通过刀(或点)切片(或穿刺)的材料的中红外光谱。