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    Optimizing capillary flow cells
    2.
    发明公开
    Optimizing capillary flow cells 失效
    Optimierung einer mikrodurchflusszelle。

    公开(公告)号：EP0597152A1

    公开(公告)日：1994-05-18

    申请号：EP92203488.9

    申请日：1992-11-13

    Applicant: Chervet, Jean-Pierre

    Inventor： Chervet, Jean-Pierre

    IPC: G01N21/05

    CPC classification number: G01N30/74 ,  G01N21/0303 ,  G01N21/05 ,  G01N2021/0346 ,  G01N2021/052 ,  G01N2030/746 ,  G01N2201/0639

    Abstract: The sensitivity of capillary flow cells such as described in the European patent application nr. 90200691.5 has been substantially improved by optimizing the alignment of the longitudinal section (middle part) of the bent fused silica capillary, by increasing the aperture ratio (flow cell diameter/flow cell length) and by making use of fiber optics for light beam guiding and enhancing the light propagation through the capillary flow cell.
    These improvements can be applied to any type of longitudinal flow cells including "Z" and "U" shaped capillary flow cells (Figure 1).
    The alignment of the middle part [2] of the bent fused silica capillary [3,4] is no longer parallel to the optical axes but shows a deviation by angle ψ - (Figure 2). This angle is of the same value as the angle by which the light beam is refracted during its entrance into the capillary glass tubing and, therefore, compensates for loss in refracted light.
    With aperture ratios (dc/Ic) of typically 1/260 the ratios are to far away from their optimum values of 1/10 to 1/5 and result in high noise levels.
    By adapting the ratios to values closer to the optimum (e.g. 1/40) noise levels can be reduced substantially.
    The use of fiber optics [6] allows for optimal light beam guiding to and from the capillary flow cell and increases the light throughput (Figure 3). Further it allows for placing the flow cell (sensing region) in distance to the detection device.
    This invention relates to a capillary flow cell for use in microseparation techniques such as capillary liquid chromatography, supercritical fluid chromatography, capillary electroseparations (e.g., capillary zone electrophoresis, micellar electrokinetic capillary chromatography, electrochromatography) and related techniques and to a method for manufacturing capillary flow cells of improved sensitivity.

    Abstract translation: 毛细管流动池的灵敏度，如欧洲专利申请nr。 通过提高孔径比（流动池直径/流动池长度）和利用用于光束引导的光纤来优化弯曲的熔融石英毛细管的纵向截面（中间部分）的对准，90200691.5已得到显着改善 增强通过毛细管流动池的光传播。 这些改进可以应用于任何类型的包括“Z”和“U”形毛细管流动池的纵向流动池（图1）。 弯曲熔融石英毛细管[3,4]的中间部分[2]的对准不再平行于光轴，而是以角度psi表示偏差（图2）。 该角度psi与入射到毛细管玻璃管道期间光束折射的角度具有相同的值，因此补偿折射光的损失。 通常孔径比（dc / lc）通常为1/260，这些比率将远离其1/10至1/5的最佳值，并导致高噪声水平。 通过将比率适应于更接近最佳（例如1/40）的值，可以显着降低噪声水平。 使用光纤[6]允许最佳的光束引导到毛细管流通池和从毛细管流动池引导，并增加光通量（图3）。 此外，它允许将流动池（感测区域）放置到距离检测装置的距离。 本发明涉及一种用于微分离技术如毛细管液相色谱，超临界流体色谱，毛细管电分离（如毛细管电泳，胶束电动毛细管色谱，电色谱法）和相关技术的毛细管流动池，以及用于制造毛细管流的方法 细胞提高灵敏度。

    APPARATUS AND METHOD FOR FORMING AN ALIGNMENT CELL
    5.
    发明公开
    APPARATUS AND METHOD FOR FORMING AN ALIGNMENT CELL 审中-公开
    VORRICHTUNG UND VERFAHREN ZUR FORMUNG EINER AUSRICHTUNGSZELLE

    公开(公告)号：EP3091351A1

    公开(公告)日：2016-11-09

    申请号：EP16154743.5

    申请日：2016-02-08

    Applicant: Honeywell International Inc.

    Inventor： JUNGWIRTH, Matthew Edward Lewis ,  GOEDERS, James E. ,  FRITZ, Bernard S. ,  OHNSTEIN, Thomas R. ,  FREDRICK, Kris ,  YOUNGNER, Daniel

    IPC: G01N21/64 ,  G02B6/36

    CPC classification number: G01N21/645 ,  G01N2021/6478 ,  G01N2021/6484 ,  G01N2201/0639 ,  G01N2201/0826 ,  G01N2201/0833 ,  G02B6/3644 ,  G02B6/3672

    Abstract: An apparatus (100) and method for an alignment cell (108) are described herein. One apparatus includes a delivery fiber (112, 212, 312) and a delivery lens (232, 332) coupled to an optical bench (104), a mirror (234, 334) to receive light from the delivery fiber (112, 212, 312) through the delivery lens (232, 332) , wherein the received light is directed by the mirror (234, 334) to an ion trap (236, 336) on the trap surface, and a collection fiber (116, 216, 316) coupled to the optical bench (104) to receive light fluoresced from an ion in the ion trap (236, 336).

    Abstract translation: 本文描述了用于对准单元（108）的装置（100）和方法。 一种装置包括传送光纤（112,212,312）和耦合到光学平台（104）的传送透镜（232,332），反射镜（234,334），用于接收来自传送光纤（112,212,312）的光， 312）通过传送透镜（232,332），其中所接收的光被反射镜（234,334）引导到捕获表面上的离子阱（236,336），以及收集光纤（116,216,316） ）耦合到光学台（104）以接收从离子阱（236,336）中的离子发出的光。

    TURBIDITY SENSOR
    6.
    发明公开
    TURBIDITY SENSOR 有权
    TURBIDITÄTSSENSOR

    公开(公告)号：EP1579195A4

    公开(公告)日：2007-01-03

    申请号：EP03812850

    申请日：2003-12-10

    Applicant: APPRISE TECHNOLOGIES INC

    Inventor： TOKHTUEV EUGENE ,  OWEN CHRISTOPHER ,  SKIRDA ANATOLY ,  SLOBODYAN VIKTOR ,  GOIN JOSE

    IPC: G01N21/53

    CPC classification number: G01N21/53 ,  G01N2201/0639

    Abstract: A turbidity sensor for underwater measurements is provided with a watertight housing, a light emitting diode, a first light focusing device for focusing a light emitted from the diode and passing the focused light into to-be-measured water, a second light focusing device for collecting at least one scattered light resulted form the focused light when passing the water, a photodiode for receiving the collected light thereby generating electronic signals, and an electronic board for processing the electronic signals.

    Abstract translation: 一种用于水下测量的浊度传感器设置有防水外壳，发光二极管，用于聚焦从二极管发射的光并将聚焦的光传递到待测量的水中的第一光聚焦装置，用于第二聚光装置 当通过水时收集由聚焦光产生的至少一种散射光，用于接收收集的光从而产生电子信号的光电二极管，以及用于处理电子信号的电子板。

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