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    • 2. 发明授权
    • Acoustic system for measuring the speed of currents in a body of water
    • 用于测量水体中电流速度的声学系统
    • US4094193A
    • 1978-06-13
    • US794660
    • 1977-05-06
    • Manfred Gerlach
    • Manfred Gerlach
    • G01P5/00G01P5/24G01F1/66
    • G01P5/247
    • An acoustic system for measuring the speed of flow or current speed of a body of water employing a measuring path through the water which extends from one shore to the other in a direction oblique to the direction of flow of the water. A triggerably measuring sound generator positioned on one shore transmits a pulse over the measuring path to a receiver on the other shore. The receiver produces an output which triggers the measuring sound generator to emit a subsequent pulse. A measuring circuit evaluates the resulting pulse repetition frequency of pulses emitted by the sound generator and produces an output proportional to the flow speed of the water.
    • 一种声学系统,用于测量使用通过水的测量路径的水体的流动速度或当前速度,所述测量路径沿着与水的流动方向相反的方向从一个岸向另一个延伸。 位于一个岸边的触发式测量声发生器将测量路径上的脉冲发射到另一岸的接收器。 接收器产生一个触发测量声音发生器发出后续脉冲的输出。 测量电路评估由声音发生器发出的脉冲的产生的脉冲重复频率,并产生与水的流速成比例的输出。
    • 4. 发明授权
    • Device for automatically tracking a moving object
    • 用于自动跟踪移动物体的装置
    • US4667091A
    • 1987-05-19
    • US706304
    • 1985-02-27
    • Manfred Gerlach
    • Manfred Gerlach
    • G01S17/66G01J1/20
    • G01S17/66
    • In a device for automatically tracking a moving object, which device includes: an optical measuring head rotatable about vertical and horizontal axes, the measuring head having first and second light transmitters for producing and emitting, respectively, a horizontally and a vertically sharply collimated light beam along respective beam axes, the transmitters being operative to cyclically sweep the beam axes horizontally and vertically, respectively, over given ranges about zero positions, and an optical receiver mounted to receive light echoes generated by reflections of the transmitted beams and having an optical axis oriented parallel to the beam axes when at the zero positions. The device further includes motorized horizontal and vertical servo drives connected for rotating the measuring head about the vertical and horizontal axes, regulating circuits connected to the receiver for converting the amplitude of the momentary deflection of the beam axes from their zero positions when a light echo of the beam emitted by each light transmitter is received by the receiver to a setting value for an associated servo drive to adjust the orientation of the measuring head in the sense of reducing that amplitude of the momentary deflection of the associated beam axis; and control elements connected to the first and second light transmitters for causing each transmitter to produce its associated light beam during successive, spaced periods.
    • 在用于自动跟踪移动物体的装置中,所述装置包括:可围绕垂直和水平轴线旋转的光学测量头,测量头具有第一和第二光发射器,用于分别产生和发射水平和垂直清晰的准直光束 沿着相应的光束轴,发射器可操作以分别围绕零位置在给定范围上水平和垂直地周期性地扫掠光束轴,以及安装成接收由透射光束的反射产生的光回波并具有光轴定向的光接收器 在零位置处平行于光束轴。 该装置还包括电动的水平和垂直伺服驱动器,其连接用于围绕垂直和水平轴线旋转测量头,调节电路连接到接收器,用于当光轴的光回波从其零位转换时,将波束轴的瞬时偏转的幅度从其零位置转换 由每个光发射器发射的光束被接收器接收到相关联的伺服驱动器的设定值,以在减小相关联的光束轴的瞬时偏转的幅度的意义上调节测量头的取向; 以及连接到第一和第二光发射器的控制元件,用于使得每个发射器在连续的间隔周期期间产生其相关联的光束。
    • 6. 发明授权
    • Apparatus for measuring the time between received pulses
    • 用于测量接收脉冲之间的时间的装置
    • US4176337A
    • 1979-11-27
    • US915228
    • 1978-06-13
    • Burckhard AechterManfred Gerlach
    • Burckhard AechterManfred Gerlach
    • G01H5/00G01P5/24G01R19/165G01S7/292G01S7/527G04F10/00G01S9/68G01P5/18
    • G01S7/527G01H5/00G01P5/245G01R19/16585G01S7/292G04F10/00
    • Apparatus for use with a system in which successive pulses, each composed of a train of high frequency oscillations, are emitted by a transmitting transducer, propagated through a transmission medium, and received by a receiving transducer having a given transient behavior, the apparatus serving to measure the time interval between reception of successive pulses by the receiver transducer and to prevent erroneous measurements resulting from propagation of the pulses over indirect paths through the transmission medium, prevention of erroneous measurements being achieved by effecting time interval measurements only with respect to those pulses for which the output signal from the receiving transducer in response to reception of each such pulse exceeds a selected threshold value during a predetermined time interval subsequent to passage of that output signal above a given comparison value which is less than the threshold value.
    • 一种与系统一起使用的装置,其中每个由一系列高频振荡组成的连续脉冲由发射换能器发射,通过传输介质传播并由具有给定瞬态特性的接收换能器接收,该装置用于 测量由接收器换能器接收连续脉冲之间的时间间隔,并防止由脉冲在通过传输介质的间接路径上的传播引起的错误测量,防止错误的测量是通过对相对于 来自接收换能器的响应于每个这样的脉冲的接收的输出信号在该输出信号经过小于阈值的给定比较值之后的预定时间间隔期间超过所选择的阈值。