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    System and method for bearing fault detection using stator current noise cancellation
    61.
    发明授权
    System and method for bearing fault detection using stator current noise cancellation 有权
    使用定子电流噪声抵消进行故障检测的系统和方法

    公开(公告)号：US07777516B2

    公开(公告)日：2010-08-17

    申请号：US12132056

    申请日：2008-06-03

    申请人： Wei Zhou ,  Bin Lu ,  Thomas G. Habetler ,  Ronald G. Harley ,  Peter J. Theisen

    发明人： Wei Zhou ,  Bin Lu ,  Thomas G. Habetler ,  Ronald G. Harley ,  Peter J. Theisen

    IPC分类号： G01R31/34

    CPC分类号： G01M13/04 ,  G01R31/343

    摘要： A system and method for detecting incipient mechanical motor faults by way of current noise cancellation is disclosed. The system includes a controller configured to detect indicia of incipient mechanical motor faults. The controller further includes a processor programmed to receive a baseline set of current data from an operating motor and define a noise component in the baseline set of current data. The processor is also programmed to repeatedly receive real-time operating current data from the operating motor and remove the noise component from the operating current data in real-time to isolate any fault components present in the operating current data. The processor is then programmed to generate a fault index for the operating current data based on any isolated fault components.

    摘要翻译： 公开了一种通过电流噪声消除来检测初始机械电机故障的系统和方法。 该系统包括被配置为检测初始机械电动机故障的标记的控制器。 控制器还包括处理器，其被编程为从操作马达接收当前数据的基线集合，并且定义当前数据的基线集合中的噪声分量。 处理器也被编程为重复地接收来自操作电机的实时工作电流数据，并实时地从工作电流数据中去除噪声分量，以隔离存在于工作电流数据中的任何故障组件。 然后处理器被编程为基于任何隔离的故障组件为工作电流数据生成故障索引。

    SYSTEM AND METHOD FOR DETERMINING STATOR WINDING RESISTANCE IN AN AC MOTOR USING MOTOR DRIVES
    62.
    发明申请
    SYSTEM AND METHOD FOR DETERMINING STATOR WINDING RESISTANCE IN AN AC MOTOR USING MOTOR DRIVES 有权
    使用电机驱动的交流电机中确定定子绕组电阻的系统和方法

    公开(公告)号：US20100194329A1

    公开(公告)日：2010-08-05

    申请号：US12363413

    申请日：2009-01-30

    申请人： Bin Lu ,  Thomas G. Habetler ,  Pinjia Zhang

    发明人： Bin Lu ,  Thomas G. Habetler ,  Pinjia Zhang

    IPC分类号： H02P27/00 ,  H02P23/14

    CPC分类号： H02P21/141 ,  H02P21/16

    摘要： A system and method for determining the stator winding resistance of AC motors is provided. The system includes an AC motor drive having an input connectable to an AC source and an output connectable to an input terminal of an AC motor, a pulse width modulation (PWM) converter having switches therein to control current flow and terminal voltages in the AC motor, and a control system connected to the PWM converter. The control system generates a command signal to cause the PWM converter to control an output of the AC motor drive corresponding to an input to the AC motor, selectively generates a modified command signal to cause the PWM converter to inject a DC signal into the output of the AC motor drive, and determines a stator winding resistance of the AC motor based on the DC signal of at least one of the voltage and current.

    摘要翻译： 提供了一种用于确定交流电动机的定子绕组电阻的系统和方法。 该系统包括具有可连接到AC电源的输入端的AC电动机驱动器和可连接到AC电动机的输入端子的输出端，其中具有开关的脉宽调制（PWM）转换器，用于控制AC电动机中的电流和端电压 以及连接到PWM转换器的控制系统。 控制系统产生一个命令信号，使PWM转换器控制对应于AC电动机输入的交流电动机驱动的输出，选择性地产生修改的指令信号，使PWM转换器将DC信号注入到 AC电动机驱动器，并且基于电压和电流中的至少一个的DC信号来确定AC电动机的定子绕组电阻。

    SYSTEM AND METHOD FOR DETERMINING STATOR WINDING RESISTANCE IN AN AC MOTOR
    64.
    发明申请
    SYSTEM AND METHOD FOR DETERMINING STATOR WINDING RESISTANCE IN AN AC MOTOR 有权
    用于确定交流电机中定子绕组电阻的系统和方法

    公开(公告)号：US20090051311A1

    公开(公告)日：2009-02-26

    申请号：US12132484

    申请日：2008-06-03

    申请人： Bin Lu ,  Thomas G. Habetler ,  Pinjia Zhang ,  Peter J. Theisen

    发明人： Bin Lu ,  Thomas G. Habetler ,  Pinjia Zhang ,  Peter J. Theisen

    IPC分类号： H02P23/14 ,  H02K11/00

    CPC分类号： H02P23/14 ,  G01R31/343

    摘要： A system and method for determining stator winding resistance in an AC motor is disclosed. The system includes a circuit having an input connectable to an AC source and an output connectable to an input terminal of an AC motor. The circuit includes at least one contactor and at least one switch to control current flow and terminal voltages in the AC motor. The system also includes a controller connected to the circuit and configured to modify a switching time of the at least one switch to create a DC component in an output of the system corresponding to an input to the AC motor and determine a stator winding resistance of the AC motor based on the injected DC component of the voltage and current.

    摘要翻译： 公开了一种用于确定AC电动机中的定子绕组电阻的系统和方法。 该系统包括具有可连接到AC电源的输入端和可连接到AC电动机的输入端子的输出的电路。 该电路包括至少一个接触器和用于控制AC电动机中的电流和端电压的至少一个开关。 该系统还包括连接到电路的控制器，其被配置为修改至少一个开关的切换时间，以在对应于AC电动机的输入的系统的输出中产生DC分量，并确定定子绕组电阻 交流电机基于注入的直流分量的电压和电流。

    USER INTERFACE DEVICE AND METHOD FOR THE VISUALLY IMPAIRED
    66.
    发明申请
    USER INTERFACE DEVICE AND METHOD FOR THE VISUALLY IMPAIRED 审中-公开
    用户界面设备和视觉障碍的方法

    公开(公告)号：US20070212668A1

    公开(公告)日：2007-09-13

    申请号：US11746942

    申请日：2007-05-10

    申请人： Junichi TAKAMI ,  Bin Lu

    发明人： Junichi TAKAMI ,  Bin Lu

    IPC分类号： G09B21/00

    CPC分类号： G06F3/016 ,  G09B21/007

    摘要： The user interface is provided for the visually impaired to operate a multi-function devices. The user interface is based upon a combination of tactile sensation, tactile position, and sound. The tactile sensation includes the Braille expressions as well as any marker on a template. The tactile position includes the relative position of the user hand on a touch panel. In combination with the tactile sensation or tactile position, the sound interface offers additional information to help the operation of the multi-function machine.

    摘要翻译： 为视障者提供用户界面来操作多功能设备。 用户界面基于触感，触觉位置和声音的组合。 触觉感觉包括盲文表达以及模板上的任何标记。 触觉位置包括用户手在触摸面板上的相对位置。 结合触感或触觉位置，声音界面提供了附加信息，有助于多功能机的操作。

    Composition and method for planarizing surfaces
    67.
    发明申请
    Composition and method for planarizing surfaces 有权
    平面化表面的组成和方法

    公开(公告)号：US20070075040A1

    公开(公告)日：2007-04-05

    申请号：US11241137

    申请日：2005-09-30

    申请人： Yuchun Wang ,  Jason Aggio ,  Bin Lu ,  John Parker ,  Renjie Zhou

    发明人： Yuchun Wang ,  Jason Aggio ,  Bin Lu ,  John Parker ,  Renjie Zhou

    IPC分类号： C09K13/00 ,  C09K13/06 ,  B44C1/22 ,  C03C15/00 ,  H01L21/302

    CPC分类号： H01L21/3212 ,  C09G1/02

    摘要： The invention provides compositions and methods for planarizing or polishing a surface. One composition comprises about 0.01 wt. % to about 20 wt. % α-alumina particles, wherein the α-alumina particles have an average diameter of 200 nm or less, and 80% of the α-alumina particles have a diameter of about 500 nm or less, an organic acid, a corrosion inhibitor, and water. Another composition comprises α-alumina particles, an organic acid, dual corrosion inhibitors of triazole and benzotriazole, wherein the wt. % ratio of the triazole to benzotriazole is about 0.1 to about 4.8, and water.

    摘要翻译： 本发明提供了用于平坦化或抛光表面的组合物和方法。 一种组合物包含约0.01重量％ ％至约20wt。 ％的α-氧化铝颗粒，其中α-氧化铝颗粒的平均直径为200nm或更小，并且80％的α-氧化铝颗粒具有约500nm或更小的直径，有机酸，腐蚀抑制剂和 水。 另一种组合物包含α-氧化铝颗粒，有机酸，三唑和苯并三唑的双重腐蚀抑制剂，其中wt- 三唑与苯并三唑的％比为约0.1至约4.8，和水。