中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

270 records (took 0.013 seconds)

    Readhead with reduced height sensitivity
    41.
    发明授权
    Readhead with reduced height sensitivity 失效
    读头，降低高度灵敏度

    公开(公告)号：US4659229A

    公开(公告)日：1987-04-21

    申请号：US659416

    申请日：1984-10-10

    Applicant: Ralph S. Hernicz

    Inventor： Ralph S. Hernicz

    IPC: G01J3/02 ,  G01J1/02 ,  G01J3/42 ,  G01N21/47

    CPC classification number: G01N21/474 ,  G01N2021/4742 ,  G01N2021/478 ,  G01N2201/065

    Abstract: A readhead with reduced height sensitivity for use in a reflectance photometer that measures reflectance of diffuse light from a sample disposed outside the readhead includes a housing with an upper spherical portion and a lower conical portion. The inner peripheral surface of the upper portion is hemispherically configured and the inner peripheral surface of the lower portion is conically configured to permit illumination of a sample disposed outside the readhead. The angle of the cone defined in the conical portion of the housing is in the range of 45.degree.-60.degree.. The inner peripheral surfaces of the upper and lower portions are coated with a highly reflective material, such as barium sulfate. The apex of the conically configured housing portion is truncated to provide a light transmitting aperture for sample illumination. A sample is positioned adjacent the light-transmitting aperture below and outside the conically shaped readhead housing portion. The housing includes a second aperture for receiving a high intensity light from a flash lamp or incandescent light to illuminate the interior of the housing and diffusely illuminate the sample. A baffle is located adjacent the second aperture to avoid direct illumination of the sample. Fiberoptic bundles and photodetectors as well as lenses and reflecting surfaces are provided to detect the amount of diffuse light reflected from the sample.

    Abstract translation: 具有降低的灵敏度的读取头，用于测量设置在读取头外部的样品的漫射光的反射率的反射光度计，其包括具有上球形部分和下圆锥形部分的壳体。 上部的内周表面是半球形的，并且下部的内周表面被锥形地构造成允许照射设置在读取头外部的样品。 限定在壳体的锥形部分中的锥体的角度在45°-60°的范围内。 上部和下部的内周表面涂覆有高反射性材料，例如硫酸钡。 圆锥形构造的壳体部分的顶点被截断以提供用于样品照明的透光孔。 样品定位在圆锥形读取头外壳部分下方和外侧的透光孔附近。 壳体包括用于从闪光灯或白炽灯接收高强度光以照亮壳体内部并且漫射照射样品的第二孔。 挡板位于第二孔附近，以避免样品的直接照射。 提供光纤束和光电检测器以及透镜和反射表面以检测从样品反射的漫射光的量。

    Apparatus and method useful for removing liquid from the outer surface of cylindrical pipette tube or the like
    42.
    发明授权
    Apparatus and method useful for removing liquid from the outer surface of cylindrical pipette tube or the like 失效
    用于从圆柱形移液管等的外表面去除液体的装置和方法

    公开(公告)号：US4566203A

    公开(公告)日：1986-01-28

    申请号：US637965

    申请日：1984-08-06

    Applicant: Leighton C. Johnson

    Inventor： Leighton C. Johnson

    IPC: G01N21/11 ,  G01N21/64 ,  G01N35/10 ,  F26B5/16

    CPC classification number: G01N21/6428 ,  G01N21/11 ,  G01N21/645 ,  G01N35/1004 ,  G01N2035/1062 ,  G01N2201/065

    Abstract: Apparatus and method for biological fluid analysis involving radiation measurement. The apparatus includes a pipetting dispenser having means for directing radiation from the piston thereof generally axially through the liquid in the pipette tube such that the pipetting dispenser serves not only as a means for measuring and mixing liquids, but also serves as a cuvette. The apparatus and method provide maximum radiation path length to accommodate liquids of different optical density. Still another feature of the apparatus and method is the provision of means for removing liquid from the outer surface of a pipette tube, which means are readily adapted to automated procedures. The apparatus in one embodiment is adapted for absorbance measurement of analyte samples, and in another embodiment is adapted for measurement of fluorescent radiation from analyte samples.

    Abstract translation: 涉及辐射测量的生物流体分析装置和方法。 该装置包括移液分配器，其具有用于将来自其活塞的辐射大致轴向地引导通过移液管中的液体的装置，使得移液分配器不仅用作用于测量和混合液体的装置，而且用作比色皿。 该装置和方法提供最大辐射路径长度以适应不同光密度的液体。 该装置和方法的另一个特征是提供了用于从移液管的外表面去除液体的装置，这意味着容易适应于自动化程序。 一个实施例中的装置适用于分析物样品的吸光度测量，并且在另一个实施例中适用于测量来自分析物样品的荧光辐射。

    Radiation dispersing cavities
    43.
    发明授权
    Radiation dispersing cavities 失效
    辐射分散腔

    公开(公告)号：US4551628A

    公开(公告)日：1985-11-05

    申请号：US481164

    申请日：1983-04-01

    Applicant: Jack J. Grossman

    Inventor： Jack J. Grossman

    IPC: G01J5/52 ,  G01N21/25

    CPC classification number: G01J5/522 ,  G01N21/255 ,  G01N2201/065

    Abstract: A radiation dispersing cavity has its interior surface covered by a plurality of deformations, each of which acts as a dispersing element which is small with respect to the effective diameter of the cavity and yet large with respect to the wavelengths processed by the integrating cavity. The interior surface of the cavity is coated with a material which provides the proper reflectivity for the wavelengths of interest.

    Abstract translation: 辐射分散腔的内表面被多个变形覆盖，每个变形都用作相对于腔的有效直径小且相对于由积分腔处理的波长较大的分散元件。 空腔的内表面涂覆有为感兴趣的波长提供适当反射率的材料。

    Integration sphere type turbidimeter
    44.
    发明授权
    Integration sphere type turbidimeter 失效
    积分球型浊度计

    公开(公告)号：US4320978A

    公开(公告)日：1982-03-23

    申请号：US096235

    申请日：1979-11-20

    Applicant: Ko Sato

    Inventor： Ko Sato

    IPC: G01N21/51 ,  G01N21/53 ,  G01V1/00

    CPC classification number: G01N21/53 ,  G01N21/51 ,  G01N2201/065

    Abstract: An integration sphere type turbidimeter having a cylindrical sample cell passing through an integration sphere and an optical system disposed so as to permit a collimated beam of light to be projected into the sample cell from one end to the other end thereof, whereby the diffused rays of light produced by the dispersed particles in the sample liquid are substantially completely picked up by the integration sphere.

    Abstract translation: 具有通过积分球的圆柱形样品池的整体球型浊度计和设置成允许准直光束从一端到另一端投射到样品池中的光学系统，由此， 由样品液体中的分散颗粒产生的光基本上被积分球完全吸收。

    Method of analyzing liquid samples and system for continuously automatically analyzing same
    45.
    发明授权
    Method of analyzing liquid samples and system for continuously automatically analyzing same 失效
    分析液体样品和系统的方法可以连续自动分析

    公开(公告)号：US4160646A

    公开(公告)日：1979-07-10

    申请号：US853137

    申请日：1977-11-21

    Applicant: Yoshikazu Furutani ,  Shinichi Kishimoto

    Inventor： Yoshikazu Furutani ,  Shinichi Kishimoto

    IPC: G01N21/78 ,  G01N21/86 ,  G01N35/00 ,  G01N21/30 ,  G01N21/48 ,  G01N31/22 ,  G01N33/16

    CPC classification number: G01N21/8483 ,  G01N35/00029 ,  G01N2035/00039 ,  G01N2035/00118 ,  G01N2201/065 ,  Y10T436/110833

    Abstract: A method of analyzing a liquid sample by applying the sample to a composite test paper composed of a strip plastic transparent film and a reflectivity reference or compensation paper piece and a plurality of color reaction test paper pieces affixed to the strip, feeding the test paper to a spectral reflectivity measuring device a predetermined period of time after the application, and calculating the corrected reflectivities of each of the paper pieces from the measured amounts of reflected light at varying wavelengths to determine the concentration of the abnormal substance contained in the test sample, free of measuring errors due to the color if any of the sample, differences in the color developed and variations in the thickness of the color reaction test paper pieces and reflectivity reference or compensation paper piece. A system for practicing this method is also disclosed.

    Abstract translation: 通过将样品施加到由条形塑料透明膜和反射参考或补偿纸片组成的复合试纸和固定在条上的多个彩色反应试纸，分析液体样品的方法，将试纸送至 光谱反射率测量装置，在施加之后的预定时间段内，根据测量的各种波长的反射光量计算每个纸片的校正反射率，以确定测试样品中含有的异常物质的浓度， 如果有任何样品，色彩差异和颜色反应试纸的厚度变化以及反射率参考或补偿纸片，都会产生颜色的测量误差。 还公开了一种用于实施该方法的系统。

Patent Agency Ranking