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    • 8. 发明公开
    • 레이더 수위 게이지용 안테나
    • 天线雷达水准仪
    • KR1020080037552A
    • 2008-04-30
    • KR1020070107164
    • 2007-10-24
    • 로즈마운트 탱크 레이더 에이비
    • 에드바르드손올로프
    • H01Q1/34G01S13/08H01Q1/24
    • H01Q1/225G01F15/12G01F23/284
    • An antenna for a radar level gauge is provided to array a lobe through limited mechanical movement and to facilitate maintenance and repair by including a simple geometric shape. An antenna for a radar level gauge includes a reflector(41) and a feeder(42'). The reflector is positioned around an axis. The feeder supplies a radio signal while moving to and from the reflector. The feeder is basically formed in a long cylindrical shape. An axis of the feeder in a longitudinal direction is basically matched with the axis of the reflector. The feeder includes a ring-shaped radiation feeding region for transmitting electromagnetic radiation to the reflector and receiving reflected electromagnetic radiation.
    • 提供了一种用于雷达液位计的天线,用于通过有限的机械运动来阵列凸角,并且通过包括简单的几何形状来促进维护和修理。 用于雷达液位计的天线包括反射器(41)和馈送器(42')。 反射器围绕轴定位。 馈线在移动到反射器的同时提供无线电信号。 进料器基本上形成为长圆柱形。 进给器的纵向轴线基本上与反射器的轴线相匹配。 馈线包括用于将电磁辐射传输到反射器并接收反射电磁辐射的环形辐射馈送区域。
    • 9. 发明公开
    • 레이더 기반의 레벨 측정장치 및 방법
    • 基于雷达的电平测量的装置和方法
    • KR1020050059337A
    • 2005-06-17
    • KR1020057009092
    • 2003-11-20
    • 로즈마운트 탱크 레이더 에이비
    • 에드바르드손쿠르트올로프
    • G01F23/284G01S7/40G01S13/10G01S13/88
    • H01Q1/225G01F23/284H01Q1/22H01Q13/02H01Q21/062H01Q21/24
    • An apparatus for gauging the level of a liquid, above which a gas having a dielectric constant within a predetermined dielectric constant range exists, comprises a transmitter for transmitting a microwave signal in a propagation mode in a tube through the gas towards the liquid surface; a receiver for receiving the microwave signal reflected against the liquid surface and propagating back through the tube; and a processing device for calculating from the propagation time of the transmitted and reflected microwave signal the level of the liquid. In order to essentially avoid the influence on the calculated level by the dielectric constant of the gas above the liquid, the transmitter is adapted to transmit the microwave signal in a frequency band, at which the group velocity of the microwave signal in the propagation mode in the tube is, within the predetermined dielectric constant range, essentially independent of the dielectric constant.
    • 一种用于测量液体水平的装置,其上存在介电常数在预定介电常数范围内的气体,其中包括用于通过气体朝向液体表面以管传播模式传输微波信号的发射器; 接收器,用于接收反对液面的微波信号,并通过管传播回来; 以及处理装置,用于根据透射和反射的微波信号的传播时间计算液体的水平。 为了基本上避免对液体上方的气体的介电常数对计算出的水平的影响,发射器适于在频带中传输微波信号,在该频带中,微波信号在传播模式中的组速度 该管在预定介电常数范围内基本上与介电常数无关。