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    • 5. 发明授权
    • Analytical system
    • 分析系统
    • US4580898A
    • 1986-04-08
    • US615645
    • 1984-05-31
    • Hamid KeramatyGary C. LuLarry A. Nelson
    • Hamid KeramatyGary C. LuLarry A. Nelson
    • G01N21/07
    • G01N21/07
    • A multicuvette rotor for use in a centrifugal analyzer defines a circumferential array of elongated radially extending cuvettes. The rotor includes a one-piece body member of material that is transparent at analytical wavelengths and has a planar upper surface and defines a circumferential array of elongated cuvette recesses, and a one-piece cover member of similarly transparent material that has a planar lower surface parallel to the planar upper surface of the body member. A continuous seal extends around each cuvette recess between the planar upper and lower surfaces to define the circumferential array of analytical cuvettes. Each elongated cuvette defines a first chamber for receiving a first constituent with a loading port in the cover member through which the first constituent is introduced into the first chamber region, a second chamber region for receiving a second constituent with a loading port in the cover member through which the second constituent is introduced into the second chamber region, divider structure between the first and second chamber regions provides a transfer passage between the first and second chamber regions through which the first constituent may be flowed into the second chamber region for forming a reaction product with the second constituent, and structure defining an analysis region adjacent the radially outer wall of the cuvette where the resulting reaction product is subjected to analysis. Extending along the top of each sidewall of each cuvette between the loading ports of the first and second chamber regions is barrier structure that fills the junction between the cover and body members so that there is no capillary channel at that junction and premature mixing of the constituents due to wicking movement of a constituent stored in one of the chamber regions to the other chamber region along that junction is inhibited.
    • 用于离心分析仪的多单元转子限定了细长径向延伸的比色皿的圆周阵列。 转子包括在分析波长处是透明的并且具有平坦的上表面并且限定细长的比色皿凹部的圆周阵列的单件本体构件,以及类似透明材料的一体式盖构件,其具有平坦的下表面 平行于主体部件的平面上表面。 连续密封件围绕平面上表面和下表面之间的每个比色皿凹槽延伸以限定分析比色皿的圆周阵列。 每个细长的比色皿限定第一室,用于接收具有第一组分的第一组分,所述第一组分具有在所述盖构件中的第一组分被引入所述第一室区域中的装载口;第二室区域,用于接收具有所述盖构件中的装载口的第二组分 通过其将第二组分引入第二室区域中,第一和第二室区域之间的分隔结构提供在第一和第二室区域之间的传输通道,第一组分可以通过第一组分流入第二室区域以形成反应 具有第二组分的产物,以及限定靠近比色杯的径向外壁的分析区域的结构,其中所得反应产物经过分析。 沿着第一和第二室区域的装载端口之间的每个比色皿的每个侧壁的顶部延伸的是阻挡结构,其填充盖和主体构件之间的接合部,使得在该接合处没有毛细通道并且组分的过早混合 由于存储在其中一个腔室区域中的构件的芯吸运动被阻止沿着该接合处的另一腔室区域运动。
    • 6. 发明授权
    • Centrifugal analyzer rotors
    • 离心分析仪转子
    • US4580897A
    • 1986-04-08
    • US615644
    • 1984-05-31
    • Larry A. NelsonGregory C. Healey
    • Larry A. NelsonGregory C. Healey
    • G01N21/07
    • G01N21/07
    • A multicuvette rotor for use in a centrifugal analyzer defines a circumferential array of elongated radially extending cuvettes. Each elongated cuvette defines a first chamber for receiving a first reactant and a loading port through which the first reactant is introduced into the first chamber region, a second chamber region for receiving a second reactant and a loading port through which the second reactant is introduced into the second chamber region, and divider structure between the first and second chamber regions that has a ramp surface and a ramp crest spaced from the ceiling surface of the cuvette so that a transfer passage between the first and second chamber regions is defined through which the first reactant may be flowed into the second chamber region for forming a reaction product with the second reactant. Deflector structure extends downwardly from the cuvette ceiling surface adjacent each second loading port, each deflector structure being located radially outwardly from a line extension of the ramp surface and having a lower end substantially in alignment with the ramp crest. An analysis region is defined adjacent the radially outer wall of the cuvette where the resulting reaction product is subjected to analysis.
    • 用于离心分析仪的多单元转子限定了细长径向延伸的比色皿的圆周阵列。 每个细长的比色杯限定了用于接收第一反应物和装载端口的第一室,第一反应物通过该装载端口被引入第一室区域,第二室区域,用于接收第二反应物和装载端口,第二反应物通过该装载口引入 所述第二室区域和所述第一和第二室区域之间的分隔结构具有斜面和与所述比色杯的顶表面间隔开的斜坡峰,从而限定所述第一和第二室区域之间的传送通道, 反应物可以流入第二室区域以与第二反应物形成反应产物。 偏转器结构从邻接每个第二加载端口的比色杯顶表面向下延伸,每个偏转器结构从斜面的线延伸部径向向外定位,并且具有基本上与斜坡峰对齐的下端。 分析区域邻近比色杯的径向外壁,其中所得反应产物进行分析。
    • 7. 发明授权
    • Analysis system
    • 分析系统
    • US4550084A
    • 1985-10-29
    • US553096
    • 1983-11-18
    • Larry A. NelsonLeon W. Schmidt
    • Larry A. NelsonLeon W. Schmidt
    • G01J1/18G01N21/07G01N9/30G01N35/00
    • G01N21/07G01J2001/184Y10T436/111666Y10T436/115831
    • A chemical analysis system for analyzing a plurality of independent specimens that have time varying characteristics includes a circumferential array of analysis regions that hold the specimens. The analytical regions are sequentially and repetitively sensed and resulting analysis signals corresponding to monitored specimen characteristics are stored in corresponding memory locations. A signal transmission channel connected between the sensor and the memory includes a signal storage capacitor and variable slew rate circuitry. The stored data signal value from the location in memory corresponding to the next analysis region to be sensed is applied to the signal transmission channel while the slew rate circuitry is set in a fast slew rate condition to preset the storage capacitor, and then the data signal generated by said sensor is applied to the signal transmission channel while the slew rate circuitry is set in a slow slew rate condition to adjust the data signal value in the storage capacitor to the current analysis signal value provided by the sensor.
    • 用于分析具有时变特性的多个独立样本的化学分析系统包括保持样本的分析区域的圆周阵列。 分析区域被顺序地和重复地感测,并且对应于监测的样本特征的结果分析信号被存储在相应的存储器位置中。 连接在传感器和存储器之间的信号传输通道包括信号存储电容器和可变转换速率电路。 将来自存储器中对应于待检测的下一个分析区域的存储器中存储的数据信号值应用于信号传输通道,同时将转换速率电路设置为快速转换速率条件以预设存储电容器,然后将数据信号 将所述传感器产生的信号施加到信号传输通道,同时将转换速率电路设置为慢速转换速率条件,以将存储电容器中的数据信号值调整为由传感器提供的当前分析信号值。
    • 8. 发明授权
    • Satellite antenna positioning system
    • 卫星天线定位系统
    • US07508342B2
    • 2009-03-24
    • US11283583
    • 2005-11-18
    • Larry A Nelson
    • Larry A Nelson
    • H01Q3/00H04B7/185
    • H01Q3/02H01Q1/125H01Q1/18
    • A system and method for automatically positioning an antenna aperture on a mobile platform in a manner to avoid blockages created by other components/subsystems on the mobile platform between the line of sight of the antenna aperture and a satellite and to avoid interference with other systems that share the mobile platform. In one embodiment, one or more linear support elements are moved by one or more corresponding motors to allow the antenna aperture to be re-positioned between a plurality of different positions. Methods for creating and using a blockage database are also disclosed.
    • 一种用于在移动平台上自动定位天线孔径的系统和方法,以避免在天线孔径与卫星的视线之间的移动平台上由其他组件/子系统产生的阻塞,并避免与其他系统的干扰 分享移动平台。 在一个实施例中,一个或多个线性支撑元件由一个或多个相应的电动机移动以允许天线孔重新定位在多个不同位置之间。 还公开了创建和使用阻塞数据库的方法。
    • 10. 发明授权
    • Method and apparatus for measurement of spatial signal and noise power
of imaging systems
    • 用于测量成像系统的空间信号和噪声功率的方法和装置
    • US5526113A
    • 1996-06-11
    • US263319
    • 1994-06-21
    • J. Michael LengyelRandy M. ManerLarry A. Nelson
    • J. Michael LengyelRandy M. ManerLarry A. Nelson
    • G01N21/956G02B27/46G01N21/00
    • G01N21/95623G02B27/46
    • A photographic facsimile of a line image at a predetermined orientation is illuminated by a collimated monochromatic light source to produce a diffraction pattern. The Fourier distribution of the diffraction pattern is focussed by a converging lens to image on a spatial frequency plane of spatial signal and spatial noise components. The image in the spatial frequency plane is applied to a detector for selectively measuring the spatial power contribution of the signal and noise components, thereby to provide a measure of image quality relating to imaging system signal-to-noise ratio. A spatial filter (18) may be introduced into the optical path to block the spatial signal components, while allowing the noise components to impinge on the detector. The line image is then reoriented in the image plane, and successive measurements of spatial signal and noise contributions repeated. The ratio of signal-to-noise power is then computed for each orientation of the line image. By simulating selected imaging components and generating a resultant line image, the effect of such components on noise may be determined.
    • 以预定取向的线图像的摄影传真由准直单色光源照射以产生衍射图案。 衍射图案的傅立叶分布由会聚透镜聚焦在空间信号和空间噪声分量的空间频率平面上的图像上。 将空间频率平面中的图像应用于检测器,用于选择性地测量信号和噪声分量的空间功率贡献,从而提供与成像系统信噪比相关的图像质量的度量。 可以将空间滤波器(18)引入到光路中以阻挡空间信号分量,同时允许噪声分量撞击检测器。 然后将线图像重新定向在图像平面中,并重复连续测量空间信号和噪声贡献。 然后针对线图像的每个取向计算信噪比的比率。 通过模拟所选择的成像组件并产生合成线图像,可以确定这些组件对噪声的影响。