Circuit arrangement for the digitalization of an angle or rotation
    1.
    发明授权
    Circuit arrangement for the digitalization of an angle or rotation 失效
    用于数字化角度或旋转的电路布置

    公开(公告)号:US4015251A

    公开(公告)日:1977-03-29

    申请号:US548861

    申请日:1975-02-10

    IPC分类号: H03M1/00 H03K13/02

    CPC分类号: H03M1/305

    摘要: A circuit arrangement for the digitalization of the angle of rotation .phi. of a rotatable device which is operated at fa rotations per second, employing auxiliary voltages modulated with sin .phi. and cos .phi. of a fundamental frequency fo, which with the aid of further circuit elements are converted into a counter pulse train which indicates the angle of rotation, in which n pulses correspond to the angle of rotation of 360.degree.; wherein from two auxiliary voltages is formed a third auxiliary voltage which contains only one of the frequencies (fo+fa) or (fo-fa), which third auxiliary voltage and a comparison voltage of the frequency n.sup.. fo are conducted to a comparator circuit, comprising a D-flip-flop, with the comparison voltage being present at the D-input (preparation input) and the third auxiliary voltage being present at the clock-input, whereby the desired counter pulse train with n.sup.. fa is obtained at the output of the D-flip-flop.

    摘要翻译: 一种用于数字化旋转装置的旋转角度的电路装置,该旋转装置的旋转角度以每秒转动的速度旋转,采用借助其它电路元件的基本频率fo的sin phi和cos phi调制的辅助电压, 转换为指示旋转角度的反向脉冲串,其中n个脉冲对应于360°的旋转角; 其中从两个辅助电压形成第三辅助电压,其仅包含频率(fo + fa)或(fo-fa)中的一个,该第三辅助电压和频率n.fo的比较电压被传导到比较器电路 ,包括D触发器,其中比较电压存在于D输入(准备输入),并且第三辅助电压存在于时钟输入端,由此,获得具有n.fa的所需计数脉冲序列 D触发器的输出。

    Vehicle detector with at least one inductive loop as a sensor, and a
method for performing vehicle detection
    2.
    发明授权
    Vehicle detector with at least one inductive loop as a sensor, and a method for performing vehicle detection 失效
    具有至少一个感应回路作为传感器的车辆检测器以及执行车辆检测的方法

    公开(公告)号:US6100820A

    公开(公告)日:2000-08-08

    申请号:US396872

    申请日:1999-09-15

    IPC分类号: G01V3/10 G08G1/01

    CPC分类号: G01V3/102

    摘要: A vehicle detectors with at least one inductive loop is used as a sensor. An oscillator circuit comprises a fixed-frequency oscillator, which is directly connected to one of the inductive loops' two terminals, for purposes of exciting said loop. In addition, a phase/amplitude controller is arranged between the fixed-frequency oscillator and the other terminal, which forms a summation point of the inductive loop to deliver a compensation signal that is derived from the transmit signal in an amplitude-controlled and phase-controlled manner. The inductive loop, the fixed-frequency oscillator and the phase/amplitude controller form a bridge circuit in which (with reference to the resulting voltage at the summation point) the transmit signal and the compensation signal add up to zero in the resting state of the inductive loop. A detection signal for the presence of a vehicle in the detection range of the induction loop is derived from a voltage at this summation point which deviates therefrom.

    摘要翻译: 具有至少一个感应回路的车辆检测器被用作传感器。 振荡器电路包括固定频率振荡器,其直接连接到感应回路的两个端子中的一个,用于激励所述回路。 另外,在固定频率振荡器和另一个终端之间设置了一个相位/幅度控制器,它形成了感应回路的总和点,以传递从幅度受控和相位差的发送信号导出的补偿信号, 受控的方式。 电感环路,固定频率振荡器和相位/幅度控制器形成桥接电路,其中(参考求和点处的所得电压)发送信号和补偿信号在静止状态下加起来为零 感应回路。 在感应回路的检测范围内存在车辆的检测信号是从与该偏差的总和点的电压导出的。

    Method for the comparative vector measurement of signal pulses arriving
nearly simultaneously at several radio receiving stations
    3.
    发明授权
    Method for the comparative vector measurement of signal pulses arriving nearly simultaneously at several radio receiving stations 失效
    用于几个同时在几个无线电接收站到达的信号脉冲的比较矢量测量方法

    公开(公告)号:US4090200A

    公开(公告)日:1978-05-16

    申请号:US629284

    申请日:1975-11-06

    CPC分类号: G01S3/14 G01S3/043 G01S3/46

    摘要: A method for the comparative vector measurement of keyed radio signal pulses arriving nearly simultaneously at several radio receivers, particularly DME pulses, which can exhibit great level differences. The pulses at each receiver are individually fed to an amplifier or attenuator having an amplification or attenuation, respectively, which can be adjusted in distinct steps, whose reduction or increase, respectively, takes place automatically with the rise of the leading edge of the respective signal pulse. After passing through the respective amplifier or attenuator of the receivers, the instantaneous amplitudes of the measuring signals are measured at a specific measured time which is common to all receivers. In each receiver, an individual measuring time is ascertained in such a way that switching pulses derived from the step-wise amplification reduction of the amplifier (or the step-wise attenuation increase of the attenuator) are fed to a retriggerable monostable multivibrator having a specific holding time, during the operating sequence of which the individual measuring time of each receiver is provided. After this measuring time, or after the measuring time, to all receivers, an additional step-wise reduction in amplification or increase in attenuation at the respective receiver is blocked. An individual measuring time, selected with reference to the arrival sequence, is used as the common measuring time for the simultaneous measurement of the receiving vectors of all receivers.

    摘要翻译: 用于比较矢量测量几乎同时到达几个无线电接收机的键控无线电信号脉冲的方法,特别是DME脉冲,其可以表现出很大的电平差。 每个接收机处的脉冲被分别馈送到具有放大或衰减的放大器或衰减器,放大器或衰减器可以分别在不同的步骤中进行调整,其分别随着各个信号的前沿的上升而自动减小或增加 脉冲。 在通过接收器的相应放大器或衰减器之后,测量信号的瞬时振幅在所有接收器共同的特定测量时间被测量。 在每个接收机中,确定单个测量时间,使得从放大器的逐步放大减小导出的切换脉冲(或衰减器的逐步衰减增加)被馈送到具有特定的可再触发单稳态多谐振荡器 在其操作顺序期间提供每个接收器的单独测量时间的保持时间。 在该测量时间之后或测量时间之后,对于所有接收机,在相应接收机处的放大或衰减增加的逐步减小被阻止。 使用参考到达序列选择的单个测量时间被用作同时测量所有接收机的接收向量的公共测量时间。

    Method for the comparative vector measurement of signal pulses arriving
nearly simultaneously at several radio receiving stations
    4.
    发明授权
    Method for the comparative vector measurement of signal pulses arriving nearly simultaneously at several radio receiving stations 失效
    用于几个同时在几个无线电接收站到达的信号脉冲的比较矢量测量方法

    公开(公告)号:US4047176A

    公开(公告)日:1977-09-06

    申请号:US629282

    申请日:1975-11-06

    摘要: A method for the comparative vector measurement of keyed radio signal pulses, in particular Tacan pulses, arriving nearly simultaneously at several receiving stations and which can exhibit great level differences, in which, at each receiver, the pulses are initially fed to an amplifier or attenuator having amplification or attenuation, respectively, which can be adjusted in distinct steps, which reduction or increase takes place automatically with the rise of the leading edge of the respective signal pulse. After passing through the respective amplifier or attenuator of the receivers, the instantaneous amplitudes of the measuring signals are measured at a fixed measuring time common to all receivers. In each receiver a second measuring signal is produced which is in phase quadrature with respect to the aforementioned measuring signal, the instantaneous amplitude of the second measuring signal being measured at the same time as the first measuring signal.CROSS REFERENCE TO RELATED APPLICATIONThis application is related to an application of Dieter Leypold et al, Ser. No. 629,284, of the same title filed on even date herewith.

    摘要翻译: 一种用于比较向量测量键控无线电信号脉冲,特别是塔坎脉冲的方法,几乎​​同时到达几个接收站,并且可以表现出很大的电平差,其中在每个接收机处,脉冲最初被馈送到放大器或衰减器 分别具有可以在不同步骤中进行调节的放大或衰减,随着相应信号脉冲的前沿的上升,这种减小或增加自动发生。 在通过接收器的相应放大器或衰减器之后,测量信号的瞬时振幅在所有接收器共同的固定测量时间内测量。 在每个接收机中产生相对于上述测量信号相位正交的第二测量信号,在与第一测量信号同时测量第二测量信号的瞬时振幅。