Solar Absorptive Material For a Solar Selective Surface Coating
    6.
    发明申请
    Solar Absorptive Material For a Solar Selective Surface Coating 有权
    太阳能吸收材料用于太阳能选择性表面涂层

    公开(公告)号:US20090151777A1

    公开(公告)日:2009-06-18

    申请号:US11817667

    申请日:2006-03-03

    IPC分类号: H01L31/00

    摘要: The present invention provides a solar absorptive material for a solar selective surface of an absorber of solar radiation. The solar absorptive material comprises a dispersed metallic material and a receiving the top surface boundary through which the solar radiation is received. Further, the solar absorptive material comprises a first region and a second region. The first region being located at a position closer to the receiving boundary than the second region and the first region has an average volume fraction of the dispersed metallic material that is larger than that of the second region.

    摘要翻译: 本发明提供一种用于太阳辐射吸收体的太阳能选择表面的太阳能吸收材料。 太阳能吸收材料包括分散的金属材料和接收太阳辐射通过其接收的顶表面边界。 此外,太阳能吸收材料包括第一区域和第二区域。 所述第一区域位于比所述第二区域更靠近所述接收边界的位置,并且所述第一区域具有大于所述第二区域的分散金属材料的平均体积分数。

    Pulse width modulated solenoid
    7.
    发明申请
    Pulse width modulated solenoid 审中-公开
    脉宽调制电磁铁

    公开(公告)号:US20080185546A1

    公开(公告)日:2008-08-07

    申请号:US11807482

    申请日:2007-05-29

    IPC分类号: F16K31/02

    CPC分类号: F16K31/0665 F16K31/0668

    摘要: A pulse width modulated solenoid control valve is described, wherein the valve includes a polymer fluid control body. The body includes a segmented fluid flow path for providing strength to the fluid control body assembly. Stand off ribs are provided to improve assembly into a control manifold. A casing forms an integral flux tube. A tapered push rod is used to reduce flux shorting.

    摘要翻译: 描述了脉宽调制电磁控制阀,其中阀包括聚合物流体控制体。 主体包括用于向流体控制主体组件提供强度的分段流体流动路径。 提供支撑肋以改进组装成控制歧管。 套管形成整体的通量管。 锥形推杆用于减少通量短路。

    Method for dynamically adapting radio signal strength threshold level in a subscriber radio based upon site type preference
    8.
    发明申请
    Method for dynamically adapting radio signal strength threshold level in a subscriber radio based upon site type preference 审中-公开
    基于站点类型偏好在用户无线电中动态地适应无线电信号强度阈值水平的方法

    公开(公告)号:US20060058030A1

    公开(公告)日:2006-03-16

    申请号:US10939396

    申请日:2004-09-13

    IPC分类号: H04Q7/20

    CPC分类号: H04W52/12 H04W52/288

    摘要: A method for dynamically adapting a radio signal strength indicator (RSSI) threshold level of a subscriber radio in two-way radio communications includes determining pre-assigned subsystem site type (211) by a subscriber radio upon attempted registration with a subscriber radio subsystem site. The RSSI threshold level within the subscriber radio is then dynamically adjusted based on the subsystem site type. A predefined set of operational criteria is used by the subscriber radio to identify each subsystem site type and maintain predefined communication standards by either remaining within the subscriber radio subsystem site or being excluded from the subscriber radio subsystem site.

    摘要翻译: 用于在双向无线电通信中动态地适应用户无线电的无线电信号强度指示符(RSSI)阈值级别的方法包括:在用户无线电子系统站点尝试注册时,通过用户无线电确定预先分配的子系统站点类型(211)。 然后,基于子系统站点类型动态地调整用户无线电中的RSSI阈值水平。 用户无线电使用预定义的一组操作标准来识别每个子系统站点类型并且通过剩余在订户无线电子系统站点内或被从用户无线电子系统站点排除而维持预定义的通信标准。

    Acoustic backing material for small-element ultrasound transducer arrays
    9.
    发明申请
    Acoustic backing material for small-element ultrasound transducer arrays 审中-公开
    用于小元件超声波换能器阵列的声学背衬材料

    公开(公告)号:US20050127793A1

    公开(公告)日:2005-06-16

    申请号:US10737216

    申请日:2003-12-15

    CPC分类号: G10K11/002

    摘要: A fine-pitch acoustic transducer array that has a backing made of acoustically attenuative material. The backing material is prepared by homogeneously combining a matrix component and filler components having an average particle size less than one-fifth (preferably less than one-tenth) of the smallest dimension of the elements making up the array. In certain embodiments, the acoustically attenuative material comprises 25-45 wt. % tungsten particles, 15-35 wt. % silicone particles and 40-60 wt. % epoxy.

    摘要翻译: 具有由声衰减材料制成的背衬的细间距声换能器阵列。 通过均匀组合基质组分和平均粒径小于构成阵列的元素的最小尺寸的五分之一(优选小于十分之一)的填料组分来制备背衬材料。 在某些实施方案中,声学减弱材料包含25-45wt。 %钨颗粒,15-35重量% %硅氧烷颗粒和40-60重量% %环氧树脂。

    Method of manufacturing ultrasound transducer device having acoustic backing
    10.
    发明申请
    Method of manufacturing ultrasound transducer device having acoustic backing 有权
    制造具有声学背衬的超声波换能器装置的方法

    公开(公告)号:US20050046311A1

    公开(公告)日:2005-03-03

    申请号:US10960871

    申请日:2004-10-06

    摘要: An ultrasonic transducer device comprising: an ultrasonic transducer array micromachined on a substrate; flexible electrical connections connected to the transducer array; and a body of acoustically attenuative material that supports the substrate and the flexible electrical connections. The acoustic backing material may contain additional features, such as tabs or notches, for use in positioning the transducer on fixtures during manufacturing or positioning the transducer within a housing during final assembly. Tabs or other features that are used only during manufacturing may be subsequently removed from the device. The MUT device itself may also be thinned so as to provide flexibility as desired. The backing material is preferably matched in acoustic impedance to the silicon wafer so as to prevent reflection at the interface of any acoustic energy propagating rearward, i.e., in the direction away from the device front surface. The backing material may also possess a high thermal conductivity to assist in removal of heat from the device.

    摘要翻译: 一种超声波换能器装置,包括:微机械加工在基底上的超声换能器阵列; 连接到换能器阵列的柔性电连接; 以及支撑衬底和柔性电连接的声衰减材料体。 声学衬垫材料可以包含附加特征,例如突片或凹口,用于在最终组装期间制造或将换能器定位在壳体内时将换能器定位在固定装置上。 仅在制造期间使用的标签或其它特征可随后从装置中移除。 MUT设备本身也可以被减薄,以便根据需要提供灵活性。 背衬材料优选地与硅晶片的声阻抗匹配,以便防止在向后传播的任何声能的界面处的反射,即远离器件前表面的方向上的反射。 背衬材料还可以具有高热导率以帮助从装置移除热量。