Ultrasonic tomography apparatus
    1.
    发明授权
    Ultrasonic tomography apparatus 失效
    超声层析成像仪

    公开(公告)号:US4099419A

    公开(公告)日:1978-07-11

    申请号:US773171

    申请日:1977-03-01

    CPC分类号: G01N29/06 G01S7/52046

    摘要: There is disclosed an ultrasonic tomography apparatus of electronic scanning type in which an array of ultrasonic transducer elements are excited with desired time delays allotted for the transducer elements thereby to transmit and receive ultrasonic beams at a deflection angle corresponding to the desired time delays, and the received echo signal of the ultrasonic beams is displayed on a CRT display device in a form of a tomograph of a sample to which the ultrasonic beams are directed. The apparatus comprises a memory in which both of first signals representative of the time delays given to the transducer elements in dependence on given deflection angles and signals designating display position in the X- and Y-directions of the CRT are previously stored and read out for producing delays allotted for the transducer elements and displaying the received echo signal on the CRT.

    摘要翻译: 公开了一种电子扫描型超声波断层摄影装置,其中以期望的时间延迟激励超声波换能器元件阵列,从而以对应于期望的时间延迟的偏转角发送和接收超声波束,并且 超声波束的接收回波信号以超声波束所指向的样本的断层图的形式显示在CRT显示装置上。 该装置包括存储器,其中预先存储表示根据给定偏转角给予换能器元件的时间延迟的两个第一信号和指示CRT的X和Y方向上的显示位置的信号,并读出以供 产生分配给换能器元件的延迟并在CRT上显示所接收的回波信号。

    Method and apparatus for controlling ultrasonic waves
    2.
    发明授权
    Method and apparatus for controlling ultrasonic waves 失效
    用于控制超声波的方法和装置

    公开(公告)号:US4080838A

    公开(公告)日:1978-03-28

    申请号:US739043

    申请日:1976-11-05

    IPC分类号: G10K11/34 G01N29/04

    CPC分类号: G10K11/346

    摘要: In a method for controlling ultrasonic waves wherein a plurality of elements constituting a phased array ultrasonic transducer are driven with desired delay times, the improvement therein comprising the fact that when values obtained by quantizing the delay times by a predetermined time are different between the adjacent elements, the ultrasonic waves are radiated with a delay of time corresponding to the difference.

    摘要翻译: 在用于控制超声波的方法中,其中以期望的延迟时间驱动构成相控阵超声波换能器的多个元件,其中的改进包括以下事实:当通过将延迟时间量化预定时间而获得的值在相邻元件之间是不同的 超声波以对应于该差的时间的延迟被辐射。

    Multiple acoustic beamformer step scanner
    4.
    发明授权
    Multiple acoustic beamformer step scanner 失效
    多声波成形器步进扫描仪

    公开(公告)号:US4254662A

    公开(公告)日:1981-03-10

    申请号:US936523

    申请日:1978-08-24

    摘要: In an ultrasonic imaging system including an array of ultrasonic oscillators, ultrasonic beams are electronically scanned by sequentially selecting a plurality of oscillator sets for beam transmission and reception. For one transmission of ultrasonic waves, at least two receiver oscillator sets having at least some oscillators in common are simultaneously selected, and the respective outputs from the oscillators in the at least two receiver oscillator sets are phase-adjusted so that echoes received by the at least two receiver oscillator sets effectively correspond to echoes substantially emanating from at least two respective different points on a depth level distanced from the plane of the oscillator array by a predetermined depth, whereby at least two signals and hence at least two successive scan lines relating to the echoes from those respective different points are produced. As a result, improved line resolution and rapid line acquisition can be obtained.

    摘要翻译: 在包括超声波振荡器阵列的超声波成像系统中,通过顺序选择多个用于波束发射和接收的振荡器组来电子扫描超声波束。 对于超声波的一次传输,同时选择具有至少一些共同振荡器的至少两个接收器振荡器组,并且来自至少两个接收器振荡器组中的振荡器的相应输出被相位调整,使得由at 至少两个接收器振荡器组有效地对应于从距振荡器阵列的平面远离预定深度的深度级上的至少两个相应不同点基本上发出的回波,由此至少两个信号以及因此至少两个连续扫描线 产生来自各个不同点的回波。 因此,可以获得改进的线分辨率和快速线获取。