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    Reflectometer with improved receiver sensitivity
    1.
    发明授权
    Reflectometer with improved receiver sensitivity 失效
    反射计具有改善的接收灵敏度

    公开(公告)号：US06836318B2

    公开(公告)日：2004-12-28

    申请号：US10095731

    申请日：2002-03-12

    申请人： Josef Beller

    发明人： Josef Beller

    IPC分类号： G01N2100

    CPC分类号： G01M11/3109 ,  H04B10/071

    摘要： In a reflectometer measurement for measuring—in response to a stimulus signal—return signals reflected and/or backscattered in a network to be measured, operation for receiving the return signals is temporarily disabled or at least suppressed during such operation modes, wherein return signals resulting from closer ranges of the network can cause substantial spurious signals to be added to return signals resulting from more distant ranges of the network.

    摘要翻译： 在反射计测量中，测量响应于要测量的网络中反射和/或反向散射的刺激信号返回信号，用于接收返回信号的操作在这种操作模式期间临时禁用或至少被抑制，其中返回信号产生 从网络的更近的范围可能导致相当多的杂散信号被添加以返回由网络的更远的范围产生的信号。

    Illuminating apparatus for testing
    5.
    发明授权
    Illuminating apparatus for testing 失效
    用于测试的照明设备

    公开(公告)号：US06819418B2

    公开(公告)日：2004-11-16

    申请号：US10280656

    申请日：2002-10-25

    申请人： Kenji Yoneda

    发明人： Kenji Yoneda

    IPC分类号： G01N2100

    CPC分类号： G01N21/95692 ,  G01N21/8806

    摘要： A cost effective and small illuminating apparatus for testing includes an illuminant having a predetermined illumination angle, a first lens for converging light from the illuminant and converting the light into collimated light, and a second lens for converging light which has passed through through-holes formed in a tested target after having been emitted from the first lens as the collimated light and for making an imager take in the light.

    摘要翻译： 用于测试的成本有效的小型照明装置包括具有预定照明角度的光源，用于会聚来自光源的光并将光转换成准直光的第一透镜和用于会聚已形成通孔的光的第二透镜 在作为准直光从第一透镜发射并使得成像器吸收光之后的测试对象中。

    Optical apparatus
    6.
    发明授权
    Optical apparatus 有权
    光学仪器

    公开(公告)号：US06819411B1

    公开(公告)日：2004-11-16

    申请号：US09355461

    申请日：1999-09-17

    申请人： Johnathan Sharpe ,  Peter Niven Schaare

    发明人： Johnathan Sharpe ,  Peter Niven Schaare

    IPC分类号： G01N2100

    CPC分类号： G01N15/1436 ,  G01N15/1434 ,  G01N15/1459 ,  G01N21/49 ,  G01N2015/1452 ,  G01N2015/149 ,  G01N2021/6469 ,  G02B5/04

    摘要： Various optical apparatus provide a source of parallel light (7, 75). The parallel light (7, 75) is generally achieved by directing an incident beam at the apex of a prism (1, 22, 24, 26, 28). The prism may have varying configurations. One configuration has a forward conical face (24). Another configuration has a pyramidal forward end (22). Other configurations are also disclosed. The application also discloses the use of reflectors (20, 78, 216, 316, 400) having internal reflective surfaces shaped as three-dimensional figures of revolution, for example paraboloid or ellipsoid. The reflectors (20, 78, 216, 316) focus light incident onto the reflectors at one or more foci (F, 220, 320, 420). The reflectors may be used in combination with the optical apparatus including the prisms (1, 22, 24, 26, 28). The reflectors (20, 78, 216, 316) may be used in flow cytometers for focussing light at a sample stream (237, 337) passing through the focus (F, 220, 320, 420) of the reflector (20, 78, 216, 316). The collection of scattered and/or fluorescent light from an illuminated sample stream (237, 337) in a flow cytometer may be achieved with the use of a collector shaped as a figure of revolution e.g. paraboloid or ellipsoid. Various optical methods and methods for flow cytometry are also disclosed.

    摘要翻译： 各种光学装置提供平行光源（7,75）。 平行光（7,75）通常通过在棱镜（1,22,24,26,28）的顶点处引入入射光束来实现。 棱镜可以具有不同的构造。 一种构型具有前锥形面（24）。 另一种配置具有金字塔形的前端（22）。 还公开了其他配置。 本申请还公开了使用具有形状为三维旋转图案的内部反射表面的反射器（20,78,216,316,400），例如抛物面或椭圆体。 反射器（20,78,216,316）聚焦在一个或多个焦点（F，220,320,420）处入射到反射器上的光。 反射器可以与包括棱镜（1,22,24,26,28）的光学装置组合使用。 反射器（20,78,216,316）可以用于流式细胞仪中，用于聚焦通过反射器（20,78,216,316）的焦点（F，220,320,420）的样品流（237,337） 216,316）。 来自流式细胞仪中照射的样品流（237,337）的散射和/或荧光的收集可以通过使用集合体来实现，该收集器成形为旋转图。 抛物面或椭圆体。 还公开了流式细胞术的各种光学方法和方法。

    Optical-reflectance-based mass-flow sensor
    7.
    发明授权
    Optical-reflectance-based mass-flow sensor 有权
    基于光反射率的质量流量传感器

    公开(公告)号：US06809821B2

    公开(公告)日：2004-10-26

    申请号：US09796492

    申请日：2001-03-02

    申请人： J. Alex Thomasson ,  Ruixiu Sui

    发明人： J. Alex Thomasson ,  Ruixiu Sui

    IPC分类号： G01N2100

    CPC分类号： G01N21/85 ,  A01D46/085 ,  G01F1/74 ,  G01N21/8915

    摘要： The present invention relates to a mass-flow sensor that measures the mass flow of conveyed reflective materials, such as cotton, in a stream of air or non-opaque fluid. In particular, the mass-flow sensor of the present invention may be used with a GPS receiver as a cotton yield monitor when mounted on a cotton harvester. It can also be used to measure mass flow of the various cotton component streams in a cotton gin. The mass flow measurements may be made non-intrusively and in real time. The present invention also relates to a method for measuring mass flow using the mass-flow sensor of the present invention.

    摘要翻译： 质量流量传感器本发明涉及一种质量流量传感器，其测量在空气或不透明流体流中输送的反射材料如棉花的质量流量。 特别地，本发明的质量流量传感器可以在安装在棉花收获机上时与GPS接收机一起用作棉花产量监测器。 它也可用于测量棉花棉花中各种棉花成分流的质量流量。 质量流量测量可以非侵入性地和实时地进行。 本发明还涉及使用本发明的质量流量传感器测量质量流量的方法。

    Assaying device and method for in field urinalysis
    8.
    发明授权
    Assaying device and method for in field urinalysis 失效

    公开(公告)号：US06805837B2

    公开(公告)日：2004-10-19

    申请号：US10264605

    申请日：2002-10-04

    申请人： Barry M. Tydings

    发明人： Barry M. Tydings

    IPC分类号： G01N2100

    CPC分类号： B01L3/502 ,  A61B10/0096 ,  B01L2300/0663 ,  G01N33/54366 ,  G01N33/558 ,  Y10T436/255 ,  Y10T436/2575

    摘要： An assay device for in field urine analysis including a container having an opening for collecting a urine sample, a cover for sealing the opening of the container and an assay assembly provided in the container for chemically analyzing the urine sample. The assay assembly comprises a liquid impermeable backing, a wicking material provided on a rear surface of the backing, at least one assay strip provided on a front surface of the backing and adjacent a top edge of the backing in contact with the wicking material, a front cover provided on the front surface of the backing for sealing the assay strip to the backing at a bottom and two sides of the assay strip and a rear cover provided on the rear surface of the backing for together with the front cover sealing said wicking material and the assay strip adjacent the top edge and two sides of said wicking material.

    Methods and instruments for fluorescence detection
    9.
    发明授权
    Methods and instruments for fluorescence detection 有权
    荧光检测方法和仪器

    公开(公告)号：US06798509B2

    公开(公告)日：2004-09-28

    申请号：US10162765

    申请日：2002-06-06

    申请人： Tsuyoshi Sonehara ,  Kyoko Kojima ,  Takashi Irie

    发明人： Tsuyoshi Sonehara ,  Kyoko Kojima ,  Takashi Irie

    IPC分类号： G01N2100

    CPC分类号： G01N21/6456

    摘要： The disclosed invention provides methods and instruments for fluorescence detection making it possible to separate and detect analytes of a plurality of species in a migration (separation) channel with length of the order of millimeters. Analyte samples disperse across the whole detection region of a migration channel filled with a sieving matrix. Electrodes located in contact with a power supply and the sieving matrix cause the analytes to electophoretically migrate at predetermined velocity V. The detection region is irradiated by excitation light whose intensity changes in a cycle equaling pitch p in the direction that the analytes move. Fluorescence emission from the analytes exposed to the excitation light is detected by a detector. Fluctuation &dgr;i (t) of output current from the detector is analyzed by a spectrum analyzer and the obtained spectrum is displayed. Florescence detection according to the invention is not affected by band broadening of analytes injected into the sample injection end of the migration channel.

    摘要翻译： 所公开的发明提供用于荧光检测的方法和仪器，使得可以在长度为毫米数的迁移（分离）通道中分离和检测多个物种的分析物。 分析物样品分散在填充有筛分基质的迁移通道的整个检测区域。 与电源和筛分基体接触的电极使得分析物以预定的速度V电泳迁移。检测区域被激发光照射，其激发光以等于间距p的方向在分析物移动的方向上变化。 通过检测器检测暴露于激发光的分析物的荧光发射。 通过频谱分析仪分析来自检测器的输出电流的波动偏差（t），并显示所获得的频谱。 根据本发明的花期检测不受注入到迁移通道的样品注入端的分析物的带宽的影响。

    Fiber optic apparatus for detecting light scatter to differentiate blood cells and the like
    10.
    发明授权
    Fiber optic apparatus for detecting light scatter to differentiate blood cells and the like 有权
    用于检测光散射以分辨血细胞等的光纤设备

    公开(公告)号：US06798508B2

    公开(公告)日：2004-09-28

    申请号：US10227003

    申请日：2002-08-23

    申请人： Donald L. Kramer

    发明人： Donald L. Kramer

    IPC分类号： G01N2100

    CPC分类号： G01N15/1459 ,  G01N21/05 ,  G01N21/51 ,  G01N2015/0084 ,  G01N2015/1006 ,  G01N2015/1493 ,  G01N2021/513

    摘要： Apparatus for detecting light scattered by a small particle (e.g., a blood cell) irradiated by a light beam comprises one or more photodetectors and a plurality of optical fibers that serve to optically couple the scattered light and the photodetector(s). To enhance the efficiency of such optical coupling, a portion of each of the optical fibers in the vicinity of its light-collecting end is supported so that its optical axis extends towards the light-scattering source. By this arrangement, scattered light enters each fiber from a direction substantially parallel to the fiber axis. Preferably, the light-collecting ends of the optical fibers are supported on a concave surface and so that the respective optical axes of the fibers converge at a point representing the apparent position of the light-scattering source, taking into account the refractive effects of an optical flow cell through which scattering is detected. Preferably, both forward- and back-scattered light are detected by the apparatus of the invention.

    摘要翻译： 用于检测由光束照射的小颗粒（例如，血细胞）散射的光的装置包括用于光耦合散射光和光电检测器的一个或多个光电检测器和多个光纤。 为了提高这种光耦合的效率，在其聚光端附近的每个光纤的一部分被支撑，使得其光轴朝向光散射源延伸。 通过这种布置，散射光从基本上平行于光纤轴线的方向进入每个光纤。 优选地，光纤的聚光端被支撑在凹面上，并且考虑到光散射源的折射效应，纤维的各个光轴会聚在表示光散射源的表观位置的点上 检测到散射的光学流通池。 优选地，通过本发明的装置检测前向散射和后向散射的光。