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    • 3. 发明授权
    • Sonar apparatus
    • 声纳仪
    • US4661938A
    • 1987-04-28
    • US821717
    • 1986-01-23
    • Charles H. JonesJohn W. Kesner
    • Charles H. JonesJohn W. Kesner
    • G01S3/802G10K11/00G01S3/80
    • G01S3/802G10K11/008
    • A passive sonar system which forms multiple receiver beams for detection of possible targets. The transducer array for the system includes a plurality of pairs of transducers, the transducers of each pair lying along a generally radial line emanating from a central point. The output signal from the outer transducer of each pair is delayed by 90.degree. or .lambda./4C relative to the inner transducer, and the delayed signal is combined with the output signal from the other transducer of the pair in a summing amplifier so that only one signal per transducer pair need be sampled by a multiplexer for transmission via a coaxial cable to beamformer apparatus. The concept is applicable to groups of transducers with more than just a pair, i.e., with three or more transducers. Appropriate additional delays are provided with all of the output signals and delayed output signals of a group being received by a single summing amplifier.
    • 被动声纳系统,形成多个接收机波束,用于检测可能的目标。 用于系统的换能器阵列包括多对换能器,每对换能器沿着从中心点发出的大致径向线。 来自每对的外部传感器的输出信号相对于内部换能器延迟90°或λ/ 4C,延迟信号与来自该对的另一个换能器的输出信号在一个加法放大器中组合,因此只有一个 每个传感器对的信号需要通过多路复用器进行采样,以通过同轴电缆传输到波束形成装置。 该概念适用于具有多于一对的换能器组,即具有三个或更多个换能器。 提供适当的附加延迟,所有的输出信号和一组的延迟输出信号由单个求和放大器接收。
    • 4. 发明授权
    • Conical transducer and reflector apparatus
    • 锥形换能器和反射器装置
    • US4025805A
    • 1977-05-24
    • US568232
    • 1975-04-15
    • John W. ColtmanCharles H. Jones
    • John W. ColtmanCharles H. Jones
    • G10K11/28H01L41/04
    • G10K11/28
    • The invention provides a transducer for use with a conical reflector in which the transducer comprises a frusto-conical radiating member that is coaxially positioned with respect to the reflector member. The half angles of the radiating member and reflectors are related such that every ray from a selected point of interest on the axis that is reflected from the reflector cone to the active surface of the radiating member intersects substantially normally to the active surface.Where the energy is directed to a point of interest distant from the reflector, the half angles are related in accordance with the formula ##EQU1## ; AND, WHERE THE POINT OF INTEREST IS ON THE AXIS, THE HALF ANGLES ARE RELATED IN ACCORDANCE WITH THE FORMULA ##EQU2## where .phi. = CONICAL REFLECTOR HALF ANGLE;.theta. = conical radiating member half angle;R = the radius of the reflector at a point where a ray from the point of interest is reflected normally to the surface of the radiating member; andS = the distance from the radius R intersection on the axis to the point of interest on the axis.
    • 本发明提供了一种与锥形反射器一起使用的换能器,其中换能器包括相对于反射器构件同轴定位的截头圆锥形辐射构件。 辐射构件和反射器的半角相关联,使得从反射器锥体反射到辐射构件的有源表面的轴上的所选择的感兴趣点的每个射线基本上正交于有源表面。
    • 7. 发明授权
    • Sonar ranging system
    • 声纳测距系统
    • US4241431A
    • 1980-12-23
    • US678488
    • 1967-10-24
    • Charles H. Jones
    • Charles H. Jones
    • G01S11/14G01S3/80
    • G01S11/14
    • A passive ranging system is disclosed wherein the transducer array has itseam pattern modulated so as to match the arrival angles of the different wave fronts arriving at the array from various target distances. The beams are formed by orientating a multiplicity of readout arms at appropriate angles with respect to a recording medium which has the individual signals detected by each transducer of the array recorded thereon in different horizontal tracks. The readout arms thus simultaneously scan all of the signals associated with the arrival angles for a particular range and produce a signal whose amplitude is a measure of the probability of a target at this range.
    • 公开了一种无源测距系统,其中换能器阵列具有其波束图案调制,以便匹配从各种目标距离到达阵列的不同波前的到达角度。 通过使多个读出臂相对于具有由记录在其上的阵列的每个换能器检测到的各个信号的记录介质在不同的水平轨道中以适当的角度定向来形成梁。 读出臂因此同时扫描与特定范围的到达角相关联的所有信号,并产生其幅度是在该范围内目标的概率的量度的信号。
    • 9. 发明授权
    • Depth-of-field arc-transducer and sonar system
    • 景深弧形换能器和声纳系统
    • US3967234A
    • 1976-06-29
    • US448596
    • 1974-03-06
    • Charles H. Jones
    • Charles H. Jones
    • G10K11/32H04B13/00
    • G10K11/32
    • A large depth-of-field arc-transducer for use in sonar systems is provided in which at least one transducer element is positioned to lie along the arc of a circle of radius R. The active faces of the transducer elements are directed to a point that lies on a line normal to the plane of the arc and passes through the center thereof. The radius R is equal to between 0.3 to 0.6 Rs and, preferably about 0.5 Rs, where Rs is the distance from said point to the midpoint of the arc-transducer.An improved depth-of-field sonar system is provided where at least two arc-transducers are used having different radii, and preferably, where each radius R is equal to between 0.3 to 0.6 Rs.
    • 提供了一种用于声纳系统的大型景深弧形换能器,其中至少一个换能器元件被定位成沿着半径为R的圆弧的弧线放置。换能器元件的有源面朝向一个点 它位于与电弧平面垂直的线上并通过其中心。 半径R等于0.3至0.6 Rs之间,优选约0.5 Rs,其中Rs是从电弧换能器的所述点到中点的距离。