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    • 10. 发明授权
    • Pulsed level gauge system and method
    • 脉冲液位计系统及方法
    • US09593976B2
    • 2017-03-14
    • US14281239
    • 2014-05-19
    • Rosemount Tank Radar AB
    • Leif NilssonHakan DelinHakan Nyberg
    • G01F23/284G01S7/28G01S7/292G01S13/10G01S13/22G01S13/88G01S13/30
    • G01F23/284G01S7/28G01S7/2923G01S13/10G01S13/103G01S13/227G01S13/30G01S13/88
    • The present invention relates to a pulsed level gauge system comprising frequency control circuitry. If an acquired signal indicates that the time between the previous filling level determination and the present filling level determination is shorter than a predefined time, the frequency control circuitry controls at least one of a transmit signal generating circuitry and a reference signal generating circuitry comprised in the pulsed level gauge system using previous frequency control settings stored in memory. If the acquired signal indicates that the time between the previous filling level determination and the present filling level determination is longer than the predefined time, the frequency control circuitry iteratively regulates at least one of the transmit signal generating circuitry and the reference signal generating circuitry towards achieving a desired pulse repetition frequency difference between the pulse repetition frequency of the transmit signal and the pulse repetition frequency of the reference signal.
    • 本发明涉及包括频率控制电路的脉冲电平计系统。 如果所获取的信号指示先前填充水平确定和当前填充水平确定之间的时间比预定时间短,则频率控制电路控制发送信号生成电路和参考信号发生电路中的至少一个包括在 脉冲电平计系统使用存储在存储器中的先前的频率控制设置。 如果所获取的信号指示先前填充水平确定和当前填充水平确定之间的时间比预定时间长,则频率控制电路对发射信号产生电路和参考信号发生电路中的至少一个进行迭代调节,以实现 发射信号的脉冲重复频率与参考信号的脉冲重复频率之间的期望的脉冲重复频率差。