Seabed surveying apparatus for superimposed mapping of topographic and
contour-line data
    1.
    发明授权
    Seabed surveying apparatus for superimposed mapping of topographic and contour-line data 失效
    海底测绘装置,用于地形和轮廓线数据的叠加映射

    公开(公告)号:US4815045A

    公开(公告)日:1989-03-21

    申请号:US860113

    申请日:1986-05-06

    Inventor: Takeshi Nakamura

    CPC classification number: G01S15/89 G01S15/87 G01S15/8902

    Abstract: Disclosed is a seabed surveying apparatus wherein a first acoustic fan beam is transmitted to seabed to provide a two-dimensional topographic representation of echoes from successively greater ranges. A second acoustic fan beam is transmitted to seabed to provide a two-dimensional bathymetric representation of echoes returning from equal profiles of the varying topography. The topographic and bathymetric representations are superimposed on a common X-Y coordinate display field.

    Abstract translation: 本发明公开了一种海床测量装置,其中第一声扇扇波束被传送到海底以提供来自连续较大范围的回波的二维地形图。 将第二个声风扇光束传输到海底,以提供从不同形貌的相似轮廓返回的回波的二维测深表示。 地形和水深表征叠加在公共的X-Y坐标显示区域上。

    Device for electronic focusing of ultrasonic waves
    3.
    发明授权
    Device for electronic focusing of ultrasonic waves 失效
    超声波电子聚焦装置

    公开(公告)号:US4779242A

    公开(公告)日:1988-10-18

    申请号:US752599

    申请日:1985-07-08

    Inventor: Olivier Lannuzel

    CPC classification number: G10K11/346

    Abstract: A device for electronic focusing of ultrasonic waves in which the focusing means comprise a hierarchized assembly of elementary circuits each provided with a delay line connected in parallel with a direct line to a centralizing unit and in which the time-delay of the delay line in a circuit is a function of the relative time-delay which must exist between the two cells or the two circuits connected to said circuit. It is shown that, in the invention, a technological advance is achieved by thus minimizing the maximum time-delays to be established in the case of each delay line.

    Abstract translation: 一种用于超声波电子聚焦的装置,其中聚焦装置包括基本电路的分级组合,每个基本电路具有与直接线并联连接到中央化单元的延迟线,其中延迟线在 电路是两个单元或连接到所述电路的两个电路之间必须存在的相对时间延迟的函数。 可以看出,在本发明中,通过在每个延迟线的情况下最小化要建立的最大时间延迟来实现技术进步。

    Ultrasound apparatus permitting dynamic variation of the position of the
reception focus
    4.
    发明授权
    Ultrasound apparatus permitting dynamic variation of the position of the reception focus 失效
    超声波设备允许接收焦点位置的动态变化

    公开(公告)号:US4707813A

    公开(公告)日:1987-11-17

    申请号:US929736

    申请日:1986-11-12

    CPC classification number: G01S7/52046 G01S15/8918 G01S7/52033 G10K11/345

    Abstract: An ultrasound apparatus permitting dynamic variation of the position of the reception focus of a prescribable number of ultrasound transducer elements has a reception channel including a time-delay circuit for the received ultrasound echo signal following every ultrasound transducer element. For switching between different, prescribed time-delay values (T.sub.1, T.sub.2, . . . T.sub.n), the time-delay circuit is connected to a control device. A part of the time-delay circuit is redundantly designed, so that first and a second sub-circuits for forming the time-delayed ultrasound echo signal are present. A dissolve circuit is provided which causes the second sub-circuit to be faded in the reception channel when the first sub-circuit, in a blanked condition, is switched to a different time-delay value (T.sub.1, T.sub.2, . . . T.sub.n), and vice versa, by a control device. Significant time is thus saved when switching between the different focus positions of the ultrasound apparatus. Transmission of switching clicks onto the respectively activated sub-circuit is prevented by the use of isolating amplifiers.

    Abstract translation: 允许动态变化可规定数量的超声波换能器元件的接收焦点位置的超声波装置具有接收通道,该接收通道包括每个超声换能器元件之后的所接收的超声回波信号的延时电路。 为了在不同的规定时间延迟值(T1,T2 ... Tn)之间切换,延时电路连接到控制装置。 时间延迟电路的一部分被冗余地设计,使得存在用于形成时间延迟的超声回波信号的第一和第二子电路。 提供一种溶解电路,当处于消隐状态的第一子电路被切换到不同的延时值(T1,T2 ... Tn)时,使第二子电路在接收通道中褪色, ,反之亦然,由控制装置。 因此,在超声波装置的不同焦点位置之间切换时,节省了大量时间。 通过使用隔离放大器来防止切换点击到分别激活的子电路的传输。

    Apparatus for displaying ultrasonic image
    5.
    发明授权
    Apparatus for displaying ultrasonic image 失效
    超声波图像显示装置

    公开(公告)号:US4706185A

    公开(公告)日:1987-11-10

    申请号:US859926

    申请日:1986-05-05

    CPC classification number: G01S7/52071 G01N29/06 G01N29/0609

    Abstract: An apparatus for displaying ultrasonic images picked-up by an ultrasonic microscope including a digital scan converter having three image memories for storing successively picked-up three ultrasonic images. The digital scan converter functions to reconstruct a color image from the three ultrasonic images by simultaneously reading ultrasonic image signals out of the image memories as red, green and blue color signals.

    Abstract translation: 一种用于显示由超声波显微镜拾取的超声波图像的装置,包括具有三个图像存储器的数字扫描转换器,用于存储连续拾取的三个超声波图像。 数字扫描转换器用于通过从图像存储器中同时读出超声图像信号来重构来自三个超声波图像的彩色图像,如红色,绿色和蓝色信号。

    Adaptive predictor of surface reverberation in a bistatic sonar
    6.
    发明授权
    Adaptive predictor of surface reverberation in a bistatic sonar 失效
    双基声纳表面混响的自适应预测器

    公开(公告)号:US4654835A

    公开(公告)日:1987-03-31

    申请号:US632769

    申请日:1984-07-20

    Inventor: Paul L. Feintuch

    CPC classification number: G01S7/526 G01S15/003 G01S15/87

    Abstract: A bistatic sonar employing LMS adaptive spatial prediction is used to process against surface reverberation from the convergence zone (CZ). Hydrophones spatially separated from the primary array are used as references. The critical behavior exploited by the invention is that since the reverberation may be viewed as an extended source for the reverberation, the correlation drops off with separation between the reference and primary sensors, while it stays a constant for the plane wave target return. The reverberation is non-stationary, functionally dependent on the signal (even though the back scatter is statistically uncorrelated with the signal), and spatially extended over the sector of the CZ annulus cut out by the transmitter azimuth beamwidth. The detection of the target is based on the sudden appearance of one strong target point source within a densely packed region of weak point sources that have been constantly present and whose sum is much larger than the target. The use of more than a single reference leads to a minimal improvement in detection performance and may actually degrade performance due to increased algorithm noise. Detection performance tends to increase with increasing separation distance between the primary and the reference hydrophone. For signal, reverberation, and algorithm parameters consistent with modern active sonars operating in the CZ mode, the spatial prediction approach to detection of the plane wave signal will allow detection of targets not possible using conventional active processing, provided the reference hydrophone can be placed to give a correlation of less than 0.05. Such values may be obtained with very reasonable spacing between primary and reference, allowing the reference to be positioned, for example, along the hull aft of the primary array.

    Abstract translation: 使用采用LMS自适应空间预测的双基声纳来处理来自收敛区(CZ)的表面混响。 作为参考,使用与主阵列空间分离的水球。 本发明所采用的关键行为在于,由于混响可以被视为混响的扩展源,所以在参考和主传感器之间的间隔中,相关性会随着平面波目标返回的恒定而下降。 混响是非平稳的,在功能上取决于信号(即使背散射与信号统计学上不相关),并且在发射机方位波束宽度切出的CZ环的扇区上空间扩展。 目标的检测是基于一直存在的弱点源的密集区域中的一个强目标点源的突然出现,其总和远大于目标。 使用多于一个参考导致检测性能的最小改善,并且可能由于增加的算法噪声而实际上降低了性能。 检测性能随着主要和参考水听器间隔距离的增加趋于增加。 对于与在CZ模式下工作的现代主动声纳一致的信号,混响和算法参数,用于检测平面波信号的空间预测方法将允许使用传统的主动处理来检测不可能的目标,只要参考水听器可以放置在 给出小于0.05的相关性。 这样的值可以在主要和参考之间具有非常合理的间隔来获得,允许参考例如沿主阵列的船体后方定位。

    Acoustic under sea position measurement system
    7.
    发明授权
    Acoustic under sea position measurement system 失效
    海底位置测量系统

    公开(公告)号:US4229809A

    公开(公告)日:1980-10-21

    申请号:US7001

    申请日:1979-01-29

    CPC classification number: G01S15/74 G01S15/874 G01S7/52004

    Abstract: The invention concerns acoustic under-water measurement apparatus for determining the location with respect to a surface vessel of objects such as submersible vessels, pipe-riders, mining apparatus, or the like, including tethered submersible vessels. A receiver hydrophone set located on the tethered vehicle receives acoustic reply pulses from sea bottom transponders, telemetering the times of reception to a surface support ship via conductors in the tether cable. Signals obtained at the surface ship directly from the transponders and indirectly via the tether cable conductors are combined aboard the surface ship for computing the positions of both vessels with respect to a base line established by the sea bottom transponders. The system is self-calibrating, so that an expensive survey to determine the actual locations of the bottom transponders is no longer required.

    Abstract translation: 本发明涉及用于确定相对于诸如潜水船舶,管道车辆,采矿设备等的物体的表面船只的位置的声学水下测量设备,包括系绳潜水船舶。 位于拴系车辆上的接收机水听器组接收来自海底转发器的声响应脉冲,通过系绳电缆中的导体将接收时间遥测到表面支撑船。 在地面船上直接从转发器获得的信号并通过系绳电缆导体间接获得的信号被组合在地面船上,用于计算两个船只相对于由海底转发器建立的基线的位置。 该系统是自校准的,因此不再需要昂贵的测量来确定底部转发器的实际位置。

    Method of and apparatus for navigating unmarked channels
    8.
    发明授权
    Method of and apparatus for navigating unmarked channels 失效
    导航未标记通道的方法和装置

    公开(公告)号:US4225949A

    公开(公告)日:1980-09-30

    申请号:US952218

    申请日:1978-10-17

    CPC classification number: G01S15/88 G01S15/14

    Abstract: In an apparatus for guiding or controlling a vessel over the center of an unmarked channel, a pair of ultrasonic transducers are mounted athwartship on the hull of the vessel and directed downwardly to transmit ultrasonic pulses and to receive corresponding pulses reflected from the floor of the body of water. Time durations between transmitted and corresponding received pulses are measured to determine floor or channel depth below the port and starboard sides of the vessel. The depths are digitally encoded and supplied to a comparator which generates a signal indicating whether deeper water is port or starboard of the vessel. The comparator signal is supplied to a display to instruct the navigator whether to steer port, starboard or to maintain course to guide the vessel over the center of the channel. The comparator signal may be also supplied to a rudder servo to automatically steer over the channel center. A digital filter is provided to eliminate any spurious readings obtained by the transducers.

    Abstract translation: 在用于在未标记通道的中心引导或控制血管的装置中,一对超声波换能器横向安装在血管的船体上并且向下指向以传递超声波脉冲并且接收从身体的地板反射的相应脉冲 的水。 测量发射和相应接收脉冲之间的时间间隔,以确定船舶端口和右舷以下的地面或通道深度。 深度被数字编码并提供给比较器,该比较器产生指示较深的水是船舶的端口还是右舷的信号。 比较器信号被提供给显示器,以指示导航器是否引导端口,右舷或维持航向以将船舶引导到通道的中心。 比较器信号也可以被提供给方向舵伺服以自动转向通道中心。 提供数字滤波器以消除由换能器获得的任何杂散读数。

    Cylindrical array radiator
    9.
    发明授权
    Cylindrical array radiator 失效
    圆柱阵列散热器

    公开(公告)号:US4222114A

    公开(公告)日:1980-09-09

    申请号:US763173

    申请日:1977-01-27

    CPC classification number: B06B1/085

    Abstract: A cylindrical array radiator that reduces the intensity of energy radiatedn undesirable directions. The radiator is constructed so that vertical staves placed on the face of a cylinder are staggered in the vertical direction by a predetermined distance to cancel energy in the undesirable directions.

    Abstract translation: 圆柱形阵列辐射器,减少辐射不良方向的能量强度。 散热器被构造成使得放置在圆筒表面上的垂直条纹在垂直方向上交错预定距离以消除不期望的方向上的能量。

    Locating a welding seam
    10.
    发明授权
    Locating a welding seam 失效
    定位焊缝

    公开(公告)号:US4206511A

    公开(公告)日:1980-06-03

    申请号:US906435

    申请日:1978-05-17

    CPC classification number: G01N29/30 G01N29/26 G01N2291/02854

    Abstract: The welding seam of a pipe is located by means of ultrasonic transducers and echo pulses responding particularly to rather minute distance differences on account of the convex contour of the seam and its elevation above the continued contour of the unmodified parts being welded together. A two or a three transducer configuration is used.

    Abstract translation: 通过超声波换能器和回波脉冲来定位管道的焊缝,特别是由于接缝的凸形轮廓而引起的相当微小的距离差异,并且其高度在未修改部件的连续轮廓上焊接在一起。 使用两个或三个换能器配置。

Patent Agency Ranking