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    Compact electronic reverberation chamber
    1.
    发明授权
    Compact electronic reverberation chamber 有权
    紧凑型电子混响室

    公开(公告)号：US08693158B2

    公开(公告)日：2014-04-08

    申请号：US13353116

    申请日：2012-01-18

    申请人： Weng Cho Chew ,  Bo Zhu ,  Lijun Jiang ,  Qi Dai

    发明人： Weng Cho Chew ,  Bo Zhu ,  Lijun Jiang ,  Qi Dai

    IPC分类号： H01H47/00 ,  G01R27/32

    CPC分类号： G01R29/0821

    摘要： A method and apparatus provide an improved EM reverberation chamber which facilitates the dynamic three dimensional (3D) manipulation of EM field polarization within the chamber and produces a uniform field distribution inside the chamber. The chamber includes one or more walls with tunable lumped elements. A controller is provided to generate one or more control signals that are applied to the lumped elements and tunes their impedance in response to the one or more control signals. The result is to generate, within the chamber an electromagnetic field that appears to be random or pseudo-random in polarization, but which is sufficiently uniform in magnitude for EM testing.

    摘要翻译： 一种方法和装置提供了一种改进的EM混响室，其促进腔室内的EM场极化的动态三维（3D）操纵，并在室内产生均匀的场分布。 该室包括一个或多个具有可调谐集总元件的墙壁。 提供控制器以产生施加到集总元件的一个或多个控制信号，并响应于一个或多个控制信号调谐其阻抗。 结果是在室内产生在极化中似乎是随机的或伪随机的但在EM测试中其幅度足够均匀的电磁场。

    COMPACT ELECTRONIC REVERBERATION CHAMBER
    2.
    发明申请
    COMPACT ELECTRONIC REVERBERATION CHAMBER 有权
    紧凑型电子反射室

    公开(公告)号：US20120206849A1

    公开(公告)日：2012-08-16

    申请号：US13353116

    申请日：2012-01-18

    申请人： Weng Cho Chew ,  Bo Zhu ,  Lijun Jiang ,  Qi Dai

    发明人： Weng Cho Chew ,  Bo Zhu ,  Lijun Jiang ,  Qi Dai

    IPC分类号： H01H47/00

    CPC分类号： G01R29/0821

    摘要： A method and apparatus provide an improved EM reverberation chamber which facilitates the dynamic three dimensional (3D) manipulation of EM field polarization within the chamber and produces a uniform field distribution inside the chamber. The chamber includes one or more walls with tunable lumped elements. A controller is provided to generate one or more control signals that are applied to the lumped elements and tunes their impedance in response to the one or more control signals. The result is to generate, within the chamber an electromagnetic field that appears to be random or pseudo-random in polarization, but which is sufficiently uniform in magnitude for EM testing.

    摘要翻译： 一种方法和装置提供了一种改进的EM混响室，其促进腔室内的EM场极化的动态三维（3D）操纵，并在室内产生均匀的场分布。 该室包括一个或多个具有可调谐集总元件的墙壁。 提供控制器以产生施加到集总元件的一个或多个控制信号，并响应于一个或多个控制信号调谐其阻抗。 结果是在室内产生在极化中似乎是随机的或伪随机的但在EM测试中其幅度足够均匀的电磁场。

    Techniques for lumen maintenance and color shift compensation
    5.
    发明授权
    Techniques for lumen maintenance and color shift compensation 有权
    流明维持和色移补偿技术

    公开(公告)号：US09335210B2

    公开(公告)日：2016-05-10

    申请号：US14321148

    申请日：2014-07-01

    申请人： Ming Li ,  Qi Dai ,  Keng Chen

    发明人： Ming Li ,  Qi Dai ,  Keng Chen

    IPC分类号： G01J1/16 ,  G01J1/02 ,  G01J1/58 ,  H05B33/08

    CPC分类号： H05B33/0869 ,  G01J1/0228 ,  G01J1/0238 ,  G01J1/16 ,  G01J1/58 ,  G01J2001/1673

    摘要： Techniques are disclosed for maintaining consistent lumen output of a lighting assembly over time. By maintaining a consistent lumen output, it is possible to maintain acceptable color stability where color mixing of multiple outputs is used. The lighting assembly may be any lighting configuration that might suffer from lumen depreciation and/or color drift over time, and may include any type(s) of light source(s) that may be monitored and driven accordingly. The lighting assembly, in addition to light source(s), includes a photo detector and a directed light source, such as a laser. The directed light source provides a golden sample for use in calibrating the photo detector, which in turn monitors lumen output of the light source(s). Drive signals are adjusted to account for lumen depreciation of the monitored light source(s).

    摘要翻译： 公开了用于在一段时间内维持照明组件的一致的流明输出的技术。 通过保持一致的流明输出，可以在使用多个输出的颜色混合的情况下保持可接受的颜色稳定性。 照明组件可以是可能遭受流逝衰减和/或随时间的颜色漂移的任何照明配置，并且可以包括可以相应地监视和驱动的任何类型的光源。 除了光源之外，照明组件还包括光检测器和诸如激光器的定向光源。 定向光源提供用于校准光电检测器的金色样品，其又监测光源的流明输出。 驱动信号被调整以考虑所监视的光源的流明衰减。

    Method for purifying sugar solutions using polyacrylamides
    10.
    发明授权
    Method for purifying sugar solutions using polyacrylamides 失效
    使用聚丙烯酰胺净化糖溶液的方法

    公开(公告)号：US5891254A

    公开(公告)日：1999-04-06

    申请号：US874427

    申请日：1997-06-13

    申请人： Michael W. Coville ,  Qi Dai

    发明人： Michael W. Coville ,  Qi Dai

    IPC分类号： C13B20/12 ,  C13D3/16 ,  C13F3/00

    CPC分类号： C13B20/126

    摘要： Methods for the purification of sugar solutions using hydrolyzed polyacrylamides as flocculants are herein described. The hydrolyzed polyacrylamides are prepared from emulsion or microemulsion polymerization of acrylamide monomer, and subsequently hydrolyzed to a degree of hydrolysis of about 10 to about 50 mole %. The hydrolyzed polyacrylamides have a molecular weight of at least about 10,000,000.

    摘要翻译： 本文描述了使用水解聚丙烯酰胺作为絮凝剂来纯化糖溶液的方法。 水解的聚丙烯酰胺由丙烯酰胺单体的乳液或微乳液聚合制备，随后水解至约10至约50摩尔％的水解度。 水解的聚丙烯酰胺的分子量至少约为10,000,000。