Ultrasonic imaging apparatus and method of forming an ultrasonic image
of an object
    61.
    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

    IPC分类号: G01S7/52 G01S15/89 G01N29/04

    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。

    Coil for NMR probe
    62.
    发明授权
    Coil for NMR probe 失效
    NMR探头线圈

    公开(公告)号:US4743852A

    公开(公告)日:1988-05-10

    申请号:US50502

    申请日:1987-04-14

    申请人: Hiroshi Ikeda

    发明人: Hiroshi Ikeda

    IPC分类号: G01R33/20 G01R33/34 H01F5/00

    摘要: In NMR spectrometers, a probe coil has been disposed close to a sample that is placed in a uniform polarizing magnetic field. Conventionally, this coil has comprised several turns which are wound on the curved surface of a cylindrical sample region. The present invention provides a probe coil having an odd number of turns and capable of detecting signals with high sensitivity. The probe coil can be made to have an inductance best suited to the purpose of the observation.

    摘要翻译: 在NMR光谱仪中,探针线圈已经靠近放置在均匀的偏振磁场中的样品设置。 通常,该线圈包括缠绕在圆柱形样品区域的弯曲表面上的几匝。 本发明提供一种具有奇数圈的探测线圈,能够检测高灵敏度的信号。 可以使探针线圈具有最适合于观察目的的电感。

    Reciprocating compressor
    70.
    发明授权
    Reciprocating compressor 有权
    往复式压缩机

    公开(公告)号:US08770088B2

    公开(公告)日:2014-07-08

    申请号:US13388045

    申请日:2010-07-29

    IPC分类号: F04B1/29

    摘要: A reciprocating compressor having an aperture control valve for an inlet passage. Sectional area of the inlet passage is maintained near the outlet holes of the aperture control valve, distribution of flow rates of refrigerant gas drawn into the cylinder bores during inlet stroke is even. A cylinder block is provided with cylinder bores, a valve plate opposing one end of the cylinder block having inlet and outlet hole pairs, and a cylinder head forming an annular outlet chamber and a cylindrical inlet chamber radially inside the outlet chamber. The cylinder head has an inlet passage and an outlet passage, and an aperture control valve with an inlet hole connecting with the inlet passage and outlet holes controlling the aperture of the inlet passage. The aperture control valve is disposed in the inlet chamber.

    摘要翻译: 一种具有用于入口通道的孔径控制阀的往复式压缩机。 入口通道的截面保持在孔径控制阀的出口附近,入口冲程期间吸入气缸孔中的制冷剂气体的流量分布是均匀的。 气缸体设置有气缸孔,与气缸体的具有入口和出口孔对的一端相对的阀板,以及形成环形出口室的气缸盖和径向位于出口室内的圆柱形入口室。 气缸盖具有入口通道和出口通道,以及孔口控制阀,其具有与入口通道连接的入口孔和控制入口通道孔径的出口孔。 孔口控制阀设置在入口室中。