System and method for ultrasound pulse shaping and output power adjustment using multiple drive pulses
    2.
    发明申请
    System and method for ultrasound pulse shaping and output power adjustment using multiple drive pulses 审中-公开
    使用多个驱动脉冲进行超声波脉冲整形和输出功率调整的系统和方法

    公开(公告)号:US20060293595A1

    公开(公告)日:2006-12-28

    申请号:US10569252

    申请日:2004-08-18

    IPC分类号: A61B8/00

    摘要: The present invention provides a system and method for ultrasound pulse shaping and output power adjustment using multiple drive pulses. The multiple drive pulses are width modulated to provide the required output signal power and wave-shape characteristics. Using multiple width-modulated pulses provides control over power output that is capable of being varied much more rapidly than using a conventional voltage modulated drive pulse. Additionally, the multiple drive pulses provide better control over unwanted harmonics than does a single drive pulse. These two advantages allow multiple width modulated pulses to increase the capabilities in ultrasonic imaging devices, thereby, allowing for rapid switching between imaging techniques having widely disparate power requirements so that composite diagnostic images may be constructed combining the diagnostic benefits the various imaging techniques have to offer.

    摘要翻译: 本发明提供一种用于使用多个驱动脉冲的超声波脉冲整形和输出功率调整的系统和方法。 多个驱动脉冲被宽度调制以提供所需的输出信号功率和波形特性。 使用多个宽度调制脉冲提供对功率输出的控制,其能够比使用传统的电压调制驱动脉冲更快地变化。 另外,与单个驱动脉冲相比,多个驱动脉冲提供对不需要的谐波的更好的控制。 这两个优点允许多个宽度调制脉冲增加超声成像设备的能力,从而允许在具有广泛不同的功率需求的成像技术之间的快速切换,使得可以构建复合诊断图像,其结合了各种成像技术必须提供的诊断益处 。

    Protective impact-resistant thermal insulation structure
    4.
    发明授权
    Protective impact-resistant thermal insulation structure 有权
    耐冲击保温结构

    公开(公告)号:US06489001B1

    公开(公告)日:2002-12-03

    申请号:US09536233

    申请日:2000-03-27

    IPC分类号: B32B302

    摘要: A protective structure for thermal insulation and impact resistance, and especially suited for bonded application to the exterior of aircraft including spacecraft to protect the craft from high temperatures generated by exhaust gases and by atmospheric re-entry. The structure includes either a single ceramic tile component with a cover component comprising a fiber reinforced ceramic matrix composite encasing the tile component, or a plurality of ceramic tile components with a like single cover component encasing the plurality of tile components. Utilizing the structures as an external aircraft surface imparts a super hard exterior that functions to significantly prohibit impact and erosion damage while not compromising the desirable thermal insulation properties inherent to tile.

    摘要翻译: 一种保温和耐冲击的保护结构,特别适用于飞机外部的粘合应用,包括航天器,以保护工艺免受废气产生的高温和大气重入。 该结构包括具有覆盖部件的单个瓷砖部件,其包括包围瓦片部件的纤维增强陶瓷基体复合体,或者多个陶瓷瓦部件,其具有封装多个瓦片部件的相似的单个盖部件。 利用结构作为外部飞行器表面赋予超硬的外部,其功能是显着地禁止冲击和侵蚀损伤,同时不损害瓦片固有的期望的隔热性能。