Electromagnetic acoustic transducers for use in ultrasound inspection systems
    1.
    发明申请
    Electromagnetic acoustic transducers for use in ultrasound inspection systems 有权
    用于超声检查系统的电磁换能器

    公开(公告)号:US20070074572A1

    公开(公告)日:2007-04-05

    申请号:US11240056

    申请日:2005-09-30

    IPC分类号: G01N29/00

    摘要: An ultrasound system for inspecting an object is provided. The ultrasound system includes an electromagnetic acoustic transducer (EMAT) and a pulser-receiver system. The EMAT is configured to generate acoustic signals representative of the area being inspected and comprises a flux concentrating non-conductive pole piece separating a radio frequency (RF) coil and a magnet. The pulser-receiver system is coupled to the EMAT and configured to receive the acoustic signals and convert the acoustic signal to electrical signals.

    摘要翻译: 提供了一种用于检查物体的超声波系统。 超声系统包括电磁声换能器(EMAT)和脉冲发生器 - 接收器系统。 EMAT被配置为产生表示被检查区域的声学信号,并且包括分离射频(RF)线圈和磁体的磁通集中非导电极片。 脉冲发生器 - 接收器系统耦合到EMAT并且被配置为接收声信号并将声信号转换成电信号。

    Electromagnetic acoustic transducers for use in ultrasound inspection systems
    2.
    发明授权
    Electromagnetic acoustic transducers for use in ultrasound inspection systems 有权
    用于超声检查系统的电磁换能器

    公开(公告)号:US07426867B2

    公开(公告)日:2008-09-23

    申请号:US11240056

    申请日:2005-09-30

    IPC分类号: G01N9/24 G01N27/72

    摘要: An ultrasound system for inspecting an object is provided. The ultrasound system includes an electromagnetic acoustic transducer (EMAT) and a pulser-receiver system. The EMAT is configured to generate acoustic signals representative of the area being inspected and comprises a flux concentrating non-conductive pole piece separating a radio frequency (RF) coil and a magnet. The pulser-receiver system is coupled to the EMAT and configured to receive the acoustic signals and convert the acoustic signal to electrical signals.

    摘要翻译: 提供了一种用于检查物体的超声波系统。 超声系统包括电磁声换能器(EMAT)和脉冲发生器 - 接收器系统。 EMAT被配置为产生表示被检查区域的声学信号,并且包括分离射频(RF)线圈和磁体的磁通集中非导电极片。 脉冲发生器 - 接收器系统耦合到EMAT并且被配置为接收声信号并将声信号转换成电信号。

    Ice cube tray box for facilitating ice making and ice removing

    公开(公告)号:US12007155B2

    公开(公告)日:2024-06-11

    申请号:US17702800

    申请日:2022-03-24

    申请人: Jian Li

    发明人: Jian Li

    IPC分类号: F25C1/24

    CPC分类号: F25C1/24 F25C2400/06

    摘要: An ice cube tray box for facilitating ice making and ice removing, which includes a box body, a cover body arranged at an open end of the box body, and an ice cube tray body arranged inside the box body, wherein a vertical upward rib assembly is arranged on an inner wall of the box body, a notch assembly matched with the rib assembly in use is arranged on an outer edge of the ice cube tray body, an ice removing plate for facilitating ice removing is clamped and arranged on the inner side of the cover body, and ice knocking columns are integrally arranged on the ice removing plate.

    Novel Baby Holder
    4.
    发明公开
    Novel Baby Holder 审中-公开

    公开(公告)号:US20240016311A1

    公开(公告)日:2024-01-18

    申请号:US17865496

    申请日:2022-07-15

    申请人: Jian Li

    发明人: Jian Li

    IPC分类号: A47D1/04

    CPC分类号: A47D1/04

    摘要: The present invention is a novel baby holder with a main body configured having a central cavity constructed and arrange to hold a baby with the main cavity having a front pair of retractable legs and a rear pair of retractable legs.

    Vaned valve for exhaust gas recirculation line

    公开(公告)号:US11441521B2

    公开(公告)日:2022-09-13

    申请号:US16627309

    申请日:2017-08-15

    发明人: Jian Li John Lowe

    摘要: A valve for m exhaust gas recirculation Mae in an engine includes a first barrel connectable to a first group of cylinders, a second barrel connectable to a second group of cylinders, and a center barrel between the first and second barrels and connectable to an intake of the engine, A poppet valve with two valve heads mounted on a valve stem is provided to open and close openings between the first and second barrels, with one of the valve beads of the poppet valve opening into the center barrel Vanes are provided in the center barrel to direct flow from the opening by the valve bead that opens into the center barrel toward the outlet opening.

    Self-aligned trench MOSFET and method of manufacture

    公开(公告)号:US09947770B2

    公开(公告)日:2018-04-17

    申请号:US12015723

    申请日:2008-01-17

    摘要: A trench metal-oxide-semiconductor field effect transistor (MOSFET), in accordance with one embodiment, includes a drain region, a plurality of gate regions disposed above the drain region, a plurality of gate insulator regions each disposed about a periphery of a respective one of the plurality of gate regions, a plurality of source regions disposed in recessed mesas between the plurality of gate insulator regions, a plurality of body regions disposed in recessed mesas between the plurality of gate insulator regions and between the plurality of source regions and the drain region. The MOSFET also includes a plurality of body contact regions disposed in the each body region adjacent the plurality of source regions, a plurality of source/body contact spacers disposed between the plurality of gate insulator regions above the recessed mesas, a source/body contact disposed above the source/body contact spacers, and a plurality of source/body contact plugs disposed between the source/body contact spacers and coupling the source/body contact to the plurality of body contact regions and the plurality of source regions.

    Porous ceramic material, manufacturing method and use thereof

    公开(公告)号:US09648909B2

    公开(公告)日:2017-05-16

    申请号:US14814093

    申请日:2015-07-30

    摘要: The present invention relates to a manufacturing method of a porous ceramic material, which includes the following steps: mixing a silicate material and a porogen to obtain a premix, wherein the silicate material includes sodium silicate and other compounds being at least one selected from the group consisting of oxides, nitrides, and carbides; drying the premix to obtain a silicate aggregate; mixing the silicate aggregate and an adhesive to obtain an injection molding material, wherein in a weight percentage, the silicate aggregate is in the range of from 50% to 60%, the adhesive is in the range of from 40% to 50%; injection molding the injection molding material to obtain a green body; and degumming and calcinating the green body successively to obtain the porous ceramic material. In the aforementioned manufacturing method of the porous ceramic material, the space-holder method is combined with the injection molding method, such that the obtained porous ceramic material has a high porosity, controllable pore sizes and good mechanical properties. In addition, compared with the dry pressing process, the use of the injection molding process can significantly improve the production efficiency, and is suitable for large-scale production.