Method and apparatus for driver circuits for use in magnetic systems
    1.
    发明授权
    Method and apparatus for driver circuits for use in magnetic systems 失效
    用于磁性系统的驱动电路的方法和装置

    公开(公告)号:US07046005B2

    公开(公告)日:2006-05-16

    申请号:US10742982

    申请日:2003-12-22

    IPC分类号: G01V3/00

    CPC分类号: G01R33/3657 G01R33/3692

    摘要: A control system comprising a driver circuit for magnetic systems is provided. The driver circuit is coupled to a magnetic system and is configured for isolating control signals from electromagnetic interference. The control signals are configured for controlling a plurality of switching elements in the magnetic system. The driver circuit and the magnetic system are located in shielded environment.

    摘要翻译: 提供一种包括用于磁性系统的驱动电路的控制系统。 驱动器电路耦合到磁系统并且被配置用于将控制信号与电磁干扰隔离。 控制信号被配置用于控制磁系统中的多个开关元件。 驱动电路和磁性系统位于屏蔽环境中。

    Method for manufacturing combined acoustic backing and interconnect module for ultrasonic array
    3.
    发明授权
    Method for manufacturing combined acoustic backing and interconnect module for ultrasonic array 失效
    用于超声波阵列的组合声学背衬和互连模块的制造方法

    公开(公告)号:US06541896B1

    公开(公告)日:2003-04-01

    申请号:US08998559

    申请日:1997-12-29

    IPC分类号: H01L4108

    摘要: A combined acoustic backing and interconnect module for connecting an array of ultrasonic transducer elements to a multiplicity of conductors of a cable utilizes the backing layer volume to extend a high density of interconnections perpendicular to the transducer array surface. The module is made by injecting flowable backfill material into a mold made up of a plurality of spacer plates having aligned channels, with interleaved flexible circuit boards. The backfill material is cured to form a backing layer which supports the flexible circuit boards in mutually parallel relationship. Excess flexible circuit material on one side of the backing layer is cut flush with the front face of the backing layer, leaving exposed ends of the conductive traces on the flexible circuit boards. The module is then laminated to a piezoelectric ceramic layer, and diced. The flexible circuit board conductive traces are aligned with, and electrically connected to, signal electrodes of the transducer elements. The other ends of the conductive traces on a fanout portion of the flexible circuit board are connected to the cable.

    摘要翻译: 用于将超声波换能器阵列阵列连接到电缆的多个导体的组合的声学背衬和互连模块利用背衬层体积来延伸垂直于换能器阵列表面的高密度互连。 该模块通过将可流动的回填材料注入由具有对准的通道的多个间隔板组成的模具和交错的柔性电路板来制成。 回填材料被固化以形成背衬层,其以相互平行的关系支撑柔性电路板。 在背衬层的一侧上的过量柔性电路材料与背衬层的前表面齐平地切割,将导电迹线的暴露端留在柔性电路板上。 然后将该模块层压到压电陶瓷层上,并切割。 柔性电路板导电迹线与换能器元件的信号电极对准并电连接。 柔性电路板的扇出部分上的导电迹线的另一端连接到电缆。

    Method and apparatus for calibrating rotational offsets in ultrasound transducer scans
    4.
    发明授权
    Method and apparatus for calibrating rotational offsets in ultrasound transducer scans 有权
    用于校准超声换能器扫描中的旋转偏移的方法和装置

    公开(公告)号:US06306092B1

    公开(公告)日:2001-10-23

    申请号:US09395273

    申请日:1999-09-13

    IPC分类号: A61B800

    摘要: The axis of rotational transducer array scans, because of imperfect transducer array assembly, may have two orthogonal offsets relative to the geometric center of the transducer array. Without knowledge of these offsets, it is not possible to convert rotational transducer scan data into a rectilinear (Euclidean) coordinate system, as is necessary for three-dimensional processing. Using spatial coherency between appropriate scan lines in different rotational transducer scans, the horizontal and vertical rotational offsets are calculated. These offsets are then utilized in converting the data to a rectilinear coordinate system for three-dimensional processing.

    摘要翻译: 由于不完美的换能器阵列组件,旋转传感器阵列扫描的轴可以相对于换能器阵列的几何中心具有两个正交偏移。 没有这些偏移的知识,不可能将旋转传感器扫描数据转换为直线(欧几里德)坐标系,这是三维处理所必需的。 在不同的旋转传感器扫描中,在适当的扫描线之间使用空间相干性,计算水平和垂直旋转偏移。 然后将这些偏移量用于将数据转换成用于三维处理的直线坐标系。