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32 条记录 (耗时 0.035 秒)

    Non-destructive evaluation of particulate filters
    4.
    发明申请
    Non-destructive evaluation of particulate filters 审中-公开
    微粒过滤器的非破坏性评估

    公开(公告)号：US20070144260A1

    公开(公告)日：2007-06-28

    申请号：US11319025

    申请日：2005-12-27

    申请人： Dong Fei ,  Craig Habeger ,  Kent Koshkarian ,  Douglas Rebinsky ,  Cheryl Sellers ,  Todd Swanson ,  Leonard Wheat ,  Benjamin Wyss

    发明人： Dong Fei ,  Craig Habeger ,  Kent Koshkarian ,  Douglas Rebinsky ,  Cheryl Sellers ,  Todd Swanson ,  Leonard Wheat ,  Benjamin Wyss

    IPC分类号： G01N9/04

    CPC分类号： G01N29/223 ,  B01D2273/18 ,  G01N29/043 ,  G01N29/4463 ,  G01N2291/044 ,  G01N2291/048 ,  G01N2291/102 ,  G01N2291/2698

    摘要： A filter internal flaw test apparatus includes a frame with a filter support and at least one pair of transducer supports. A filter is positioned in the test apparatus, and an ultrasound through transmission test and at least one ultrasound pulse echo test are performed on the filter. Data reliability is increased by positioning the pair of transducers in alignment with one another and pushing them toward one another using a force generator with a predetermined uniform force, such as via a regulated pneumatic actuator. A signal generating/receiving device is in communication with the transducers and provides the ability for analyzing the test results to determine whether the filter has an internal flaw, such as a crack or void that would render it unsatisfactory for use as a particulate filter.

    摘要翻译： 过滤器内部缺陷测试装置包括具有过滤器支撑件的框架和至少一对换能器支撑件。 过滤器位于测试装置中，并且在过滤器上执行超声波透射测试和至少一个超声脉冲回波测试。 通过使一对换能器彼此对准并且使用具有预定的均匀力的力发生器（例如经由调节的气动致动器）将它们彼此推向彼此来增加数据可靠性。 信号发生/接收装置与换能器通信，并且提供分析测试结果以确定滤波器是否具有内部缺陷的能力，例如裂纹或空隙，这将使其不能令人满意地用作微粒过滤器。

    System and method for detecting internal flaws in a particulate filter
    8.
    发明申请
    System and method for detecting internal flaws in a particulate filter 失效
    用于检测颗粒过滤器内部缺陷的系统和方法

    公开(公告)号：US20090120189A1

    公开(公告)日：2009-05-14

    申请号：US11983282

    申请日：2007-11-08

    申请人： Dong Fei ,  Jade Katinas ,  Leonard G. Wheat ,  Linxiao Yu ,  Douglas A. Rebinsky

    发明人： Dong Fei ,  Jade Katinas ,  Leonard G. Wheat ,  Linxiao Yu ,  Douglas A. Rebinsky

    IPC分类号： G01N9/04

    CPC分类号： G01N29/265 ,  G01N29/27 ,  G01N29/275 ,  G01N29/28 ,  G01N2291/0289 ,  G01N2291/048

    摘要： A method of detecting an internal flaw in a particulate filter includes a step of coupling ultrasonic transducer with the particulate filter. The method also includes a step of moving at least one of the ultrasonic transducer and the particulate filter relative to the other. Consistent coupling of the ultrasonic transducer with the particulate filter is maintained during the moving step. Ultrasonic energy is transmitted from the ultrasonic transducer through a majority of a volume of the particulate filter. The method also includes a step of determining if the particulate filter includes an internal flaw using the ultrasonic energy.

    摘要翻译： 检测微粒过滤器内部缺陷的方法包括将超声换能器与微粒过滤器结合的步骤。 该方法还包括相对于另一个移动超声波换能器和微粒过滤器中的至少一个的步骤。 在移动步骤期间保持超声波换能器与微粒过滤器的一致耦合。 超声能量从超声换能器通过大部分体积的微粒过滤器传播。 该方法还包括使用超声能量来确定微粒过滤器是否包括内部缺陷的步骤。

    Thermoelectric device
    9.
    发明申请
    Thermoelectric device 审中-公开
    热电装置

    公开(公告)号：US20080017238A1

    公开(公告)日：2008-01-24

    申请号：US11490135

    申请日：2006-07-21

    申请人： Dong Fei ,  Mahmoud A. Taher ,  Bao Feng ,  Leonard George Wheat ,  Beth Ann Howe

    发明人： Dong Fei ,  Mahmoud A. Taher ,  Bao Feng ,  Leonard George Wheat ,  Beth Ann Howe

    IPC分类号： H01L35/28

    CPC分类号： H01L35/32 ,  H01L35/34

    摘要： A thermoelectric device includes a plurality of n-type thermoelectric elements and a plurality of p-type thermoelectric elements. These thermoelectric elements each have multiple end surfaces that are substantially parallel to each other, and include terminals attached to the end surfaces. The thermoelectric elements also include a support structure with an external surface covered by multiple layers of a thermoelectric material and a flexible substrate. The thermoelectric device also includes a plurality of conductive members which electrically interconnect the thermoelectric elements.

    摘要翻译： 热电装置包括多个n型热电元件和多个p型热电元件。 这些热电元件各自具有基本上彼此平行的多个端面，并且包括附接到端表面的端子。 热电元件还包括具有由多层热电材料和柔性基板覆盖的外表面的支撑结构。 热电装置还包括电连接热电元件的多个导电构件。

    System and method for detecting internal flaws in a particulate filter
    10.
    发明授权
    System and method for detecting internal flaws in a particulate filter 失效
    用于检测颗粒过滤器内部缺陷的系统和方法

    公开(公告)号：US07698945B2

    公开(公告)日：2010-04-20

    申请号：US11983282

    申请日：2007-11-08

    申请人： Dong Fei ,  Jade Katinas ,  Leonard G. Wheat ,  Linxiao Yu ,  Douglas A. Rebinsky

    发明人： Dong Fei ,  Jade Katinas ,  Leonard G. Wheat ,  Linxiao Yu ,  Douglas A. Rebinsky

    IPC分类号： G01N29/00

    CPC分类号： G01N29/265 ,  G01N29/27 ,  G01N29/275 ,  G01N29/28 ,  G01N2291/0289 ,  G01N2291/048

    摘要： A method of detecting an internal flaw in a particulate filter includes a step of coupling ultrasonic transducer with the particulate filter. The method also includes a step of moving at least one of the ultrasonic transducer and the particulate filter relative to the other. Consistent coupling of the ultrasonic transducer with the particulate filter is maintained during the moving step. Ultrasonic energy is transmitted from the ultrasonic transducer through a majority of a volume of the particulate filter. The method also includes a step of determining if the particulate filter includes an internal flaw using the ultrasonic energy.

    摘要翻译： 检测微粒过滤器内部缺陷的方法包括将超声换能器与微粒过滤器结合的步骤。 该方法还包括相对于另一个移动超声波换能器和微粒过滤器中的至少一个的步骤。 在移动步骤期间保持超声波换能器与微粒过滤器的一致耦合。 超声能量从超声换能器通过大部分体积的微粒过滤器传播。 该方法还包括使用超声能量来确定微粒过滤器是否包括内部缺陷的步骤。