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公开(公告)号：US4962667A
公开(公告)日：1990-10-16
申请号：US384109
申请日：1989-07-24
申请人： Toshio Ogawa , Kageyoshi Katakura , Shin-ich Kondo , Shin'ichiro Umemura , Hiroshi Ikeda , Noriyoshi Ichikawa , Kinji Kuriyama
发明人： Toshio Ogawa , Kageyoshi Katakura , Shin-ich Kondo , Shin'ichiro Umemura , Hiroshi Ikeda , Noriyoshi Ichikawa , Kinji Kuriyama
CPC分类号： G01N29/262 , G01S15/8918 , G01S7/52046 , G10K11/345
摘要： In an ultrasonic imaging apparatus utilizing an array type ultrasonic probe having a number of arrayed probe elements, high frequency pulse signals subject to different delays are supplied to respective probe elements so as to generate an acoustic beam which converges to a predetermined focal point. When receiving a reflection acoustic beam resulting from the converging beam, a plurality of signal lines extending from respective probe elements are connected in common to set up a plurality of element groups each having a plurality of adjacently arrayed elements and respective signals derived from respective element groups are differently delayed and added together to generate a reception signal representative of a reception beam having a predetermined focal point.
摘要翻译： 在利用具有多个排列的探针元件的阵列型超声波探头的超声波成像装置中，经受不同延迟的高频脉冲信号被提供给各个探针元件，从而产生会聚到预定焦点的声束。 当收到由会聚光束产生的反射声束时，从各个探针元件延伸的多条信号线共同连接，以建立多个元件组，每个元件组具有多个相邻排列的元件，以及从相应元件组导出的相应信号 被不同地延迟并相加在一起以产生表示具有预定焦点的接收束的接收信号。
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2.发明授权Ultrasonic imaging apparatus and method of forming an ultrasonic image of an object 失效超声波成像装置和形成物体的超声波图像的方法
公开(公告)号：US4793184A
公开(公告)日：1988-12-27
申请号：US898518
申请日：1986-08-21
CPC分类号： G01S7/52046 , G01S15/8918 , G01S7/52085
摘要： An ultrasonic imaging apparatus and method of forming an image of an acoustic image of an object employing the aperture synthesis technique, in which at least one partial aperture for accommodating a predetermined number of successive transducers is established and applied to a transducer array to select the predetermined number of successive transducers accommodated in the partial aperture so that the selected transducers serve to transmit ultrasonic acoustic signals to an object and receive signals reflected from the object, and the at least one partial aperture is specifically moved along the arrayed transducers for similar signal transmission to and/or signal reception from the object, whereby the apparatus and the method do not suffer substantial noise caused during changeover between transmitting and receiving operation modes and/or enjoy and enlarged aperture for signal transmission or enlarged aperture for signal reception with a suppressed decrease of the frame rate.
摘要翻译： 一种使用孔径合成技术形成对象的声像的图像的超声波成像装置和方法，其中建立用于容纳预定数量的连续换能器的至少一个部分孔径并将其应用于换能器阵列以选择预定的 容纳在部分孔径中的连续换能器的数量，使得所选择的换能器用于向对象发射超声波信号并接收从物体反射的信号，并且至少一个部分孔径被特别地沿着阵列换能器移动以用于类似的信号传输 和/或来自对象的信号接收，由此该装置和方法不会在发送和接收操作模式之间切换期间产生实质的噪声和/或用于信号传输的享受和扩大的孔径或用于信号接收的扩大的孔径， 帧速率。
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公开(公告)号：US4841491A
公开(公告)日：1989-06-20
申请号：US892287
申请日：1986-08-04
IPC分类号： G10K11/34
CPC分类号： G10K11/346
摘要： In an ultrasonic beam former for phasing and adding received signals supplied from respective elements of an ultrasonic transducer array and for producing the received output in conformity to a desired wave front, a plurality of sampling delay means for sampling and delaying the received signal supplied from each element are disposed for each channel. The plurality of delay means effect the sampling operation successively and alternately. Outputs of delay means are selected by switches activated in response to the alternate sampling operation. As a result, the sampling rate per signal channel is increased.
摘要翻译： 在超声波束形成器中，用于相位和相加从超声波换能器阵列的各个元件提供的接收信号并且用于根据期望的波前产生接收的输出;多个采样延迟装置，用于对从每个信号提供的接收信号进行采样和延迟 元件为每个通道设置。 多个延迟装置依次和交替地进行采样操作。 延迟装置的输出由响应于替代采样操作而被激活的开关选择。 结果，每个信号通道的采样率增加。
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公开(公告)号：US4680499A
公开(公告)日：1987-07-14
申请号：US849833
申请日：1986-04-09
CPC分类号： G10K11/02
摘要： A monolithic array ultrasonic transducer has a plurality of transducer elements formed thereon by isolating metallized areas on a piezoelectric plate without cutting the piezoelectric plate apart for each transducer element, and an acoustic matching layer having a longitudinal wave velocity within .+-.25% of a longitudinal wave velocity of the piezoelectric plate and a thickness equal to one half of that of the piezoelectric plate. The acoustic matching layer suppresses the radiation to an object of a partial wave in a direction of 60.degree. to a normal line to the plane of the piezoelectric plate.
摘要翻译： 单片阵列超声波换能器通过隔离压电板上的金属化区域而形成多个换能器元件，而不将每个换能器元件的压电板分开切割，并且具有纵向波速度在±25％以内的声匹配层 压电板的纵波速度和厚度等于压电板的一半的厚度。 声匹配层将辐射抑制到与压电板的平面相对于法线的60°的方向上的部分波的物体。
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