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    Ultrasonic probe
    52.
    发明授权
    Ultrasonic probe 失效
    超声波探头

    公开(公告)号：US5465725A

    公开(公告)日：1995-11-14

    申请号：US381607

    申请日：1995-01-30

    Applicant: Mir S. Seyed-Bolorforosh

    Inventor： Mir S. Seyed-Bolorforosh

    IPC: B06B1/02 ,  B06B1/06 ,  G10K11/02 ,  A61B8/00

    CPC classification number: B06B1/0629 ,  G10K11/02 ,  B06B2201/20

    Abstract: A tunable ultrasonic probe of the that provides efficient electrical coupling of probe control lines to imaging system components and further provides for variable control over size of an effective acoustic aperture of the probe. The ultrasonic probe includes a body of a piezoelectric material that has a first surface and an opposing surface. A first set of electrodes is coupled with the first surface of the body. A second set of electrodes is also coupled with the first surface of the body and arranged so that each electrode of the second set substantially overlaps at least a respective one electrode of the first set. A third set of electrodes is coupled with the opposing surface of the body. At least one bias voltage source is coupled with the electrodes for substantially polarizing ceramic material within selected regions of the body. Switches are coupled with the first and second set of electrodes for changing an acoustic aperture of the probe by varying size of the selected polarized regions. The polarization of the selected regions of the piezoelectric material is controlled so as to variably tune a frequency of the beam of acoustic signals while controlling the acoustic aperture of the probe.

    Abstract translation: 一种可调谐的超声波探头提供了探头控制线与成像系统部件的有效电耦合，并进一步提供对探头有效声孔尺寸的可变控制。 超声波探头包括具有第一表面和相对表面的压电材料体。 第一组电极与本体的第一表面结合。 第二组电极还与本体的第一表面耦合，并且被布置成使得第二组的每个电极基本上与第一组的至少相应的一个电极重叠。 第三组电极与主体的相对表面联接。 至少一个偏置电压源与电极耦合，用于使主体的选定区域内的基本上偏振的陶瓷材料。 开关与第一和第二组电极耦合，用于通过改变所选极化区域的尺寸来改变探针的声孔。 控制压电材料的选定区域的极化，以便在控制探针的声孔的同时可变地调谐声信号束的频率。

    Ultrasonic transducer for three dimensional imaging
    53.
    发明授权
    Ultrasonic transducer for three dimensional imaging 失效
    超声波换能器用于三维成像

    公开(公告)号：US5460181A

    公开(公告)日：1995-10-24

    申请号：US319344

    申请日：1994-10-06

    Applicant: Mir S. Seyed-Bolorforosh

    Inventor： Mir S. Seyed-Bolorforosh

    IPC: G01B17/00 ,  A61B8/00 ,  B06B1/02 ,  B06B1/06 ,  G01B17/06 ,  G01N29/24 ,  H04R17/00

    CPC classification number: B06B1/0622 ,  G01N29/245 ,  B06B2201/20 ,  G01N2291/0427 ,  Y10S128/916

    Abstract: A method and apparatus for three dimensional ultrasonic scanning with reduced electronic switching and cabling requirements. The invention includes a body including a relaxor ferroelectric ceramic material and electrodes coupled to opposing surfaces of the body. Electronic switches select electrodes so as to select column regions of the body that are arranged adjacent to one another in a row extending radially outward from a central axis of the body. A bias voltage source is coupled with the electronic switches for substantially polarizing ceramic material within the selected column regions of the body. A sector controller dynamically configures the electronic switches to rotationally vary a position of the row arrangement of selected column regions. An oscillating voltage source excites the row of selected column regions to emit an acoustic beam, so that the beam rotationally scans the medium as the sector controller rotationally varies the position of the row arrangement.

    Abstract translation: 一种用于三维超声波扫描的方法和装置，具有减少的电子切换和布线要求。 本发明包括一个主体，它包括一个弛豫铁电陶瓷材料和连接到该主体相对表面的电极。 电子开关选择电极，以便从主体的中心轴向径向向外延伸的行中选择彼此相邻布置的主体的列区域。 偏置电压源与电子开关耦合，用于在主体的所选列区域内大致偏振陶瓷材料。 扇区控制器动态地配置电子开关以旋转地改变所选列区域的行排列的位置。 振荡电压源激励所选择的列区域的行以发射声束，使得当扇区控制器旋转地改变行布置的位置时，光束旋转地扫描介质。

    Tuned circuit for sonar beam pattern optimization
    54.
    发明授权
    Tuned circuit for sonar beam pattern optimization 失效
    用于声纳波束图案优化的调谐电路

    公开(公告)号：US5309410A

    公开(公告)日：1994-05-03

    申请号：US439462

    申请日：1982-11-05

    Applicant: Elmore Kittower ,  Merrill E. Fife ,  Robert T. Winnicki

    Inventor： Elmore Kittower ,  Merrill E. Fife ,  Robert T. Winnicki

    IPC: B06B1/02 ,  G01S7/521 ,  G01S15/00

    CPC classification number: G01S7/521 ,  B06B1/0269 ,  B06B2201/20 ,  B06B2201/55 ,  B06B2201/74

    Abstract: A sonar system using closely spaced or interleaved projector and receiving transducer elements with a power inductor connected in series with the projector array transmits three separate frequencies and utilizes a resonant circuit connected across the projector array, and a switch alternately connecting the array to the transmitter or the resonant circuit. The resonant circuit has two parallel branches with an inductor in one branch and an inductor, a capacitor and a resistor in the parallel branch. An alternate embodiment includes a variable capacitor in series with the parallel circuit to simplify the tuning for individual installations. Values of the components were chosen to provide impedances looking into the resonant circuit which tend to maximize the "stiffness" of the projector elements for all the received frequencies, thus inhibiting the tendency of the projector elements to receive and reradiate echo signals during the receiving cycle of the sonar system.

    Abstract translation: 使用紧密间隔或交错的投影仪和接收具有与投影仪阵列串联的功率电感器的换能器元件的声纳系统传输三个单独的频率并且利用连接在投影仪阵列上的谐振电路，以及将阵列交替地连接到发射器或 谐振电路。 谐振电路具有两个平行分支，在一个分支中具有电感器，在并联支路中具有电感器，电容器和电阻器。 替代实施例包括与并联电路串联的可变电容器，以简化各个安装的调谐。 选择组件的值以提供观察谐振电路的阻抗，其倾向于最大化用于所有接收频率的投影仪元件的“刚度”，从而抑制投影仪元件在接收周期期间接收和重新辐射回波信号的趋势 的声纳系统。

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