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1. 发明申请

US20140085132A1 RADAR LEVEL GAUGING USING FREQUENCY MODULATED PULSED WAVE 有权
标题翻译：使用频率调制脉冲波的雷达电平测量
公开(公告)号：US20140085132A1
公开(公告)日：2014-03-27
申请号：US13976567
申请日：2011-12-29
申请人： Anders Jirskog , Olov Edvardsson , Jan Westerling
发明人： Anders Jirskog , Olov Edvardsson , Jan Westerling
IPC分类号： G01F23/284
CPC分类号： G01F23/284 , G01S13/26 , G01S13/88
摘要： A method for measurement of a distance to a surface of a product kept in a tank method comprises transmitting a pulse train of distinct carrier wave pulses having a duration greater than 1 microsecond and shorter than 100 milliseconds, the pulse train has an average duty cycle of less than 50 percent, each pulse has a defined center frequency, selected according to a frequency scheme within a predetermined frequency range, greater than 5% of an average center frequency. The method further comprises correlating actual phase properties of received pulses with expected phase properties to provide an updated estimation of the distance.The present invention is based on transmitting a set of carrier wave pulses, each having a distinct frequency selected within a frequency range. The method is therefore referred to as a Frequency Modulated Pulsed Wave (FMPW).
摘要翻译：用于测量到保持在罐方法中的产品的表面的距离的方法包括传输具有大于1微秒且小于100毫秒的持续时间的不同载波脉冲的脉冲串，脉冲串的平均占空比为小于50％，每个脉冲具有定义的中心频率，其根据在预定频率范围内的频率方案选择，大于平均中心频率的5％。该方法还包括将接收到的脉冲的实际相位特性与期望的相位特性相关联以提供距离的更新估计。本发明基于传输一组载波波形，每组载波波形在频率范围内具有选择的不同频率。因此，该方法被称为频率调制脉冲波（FMPW）。

2. 发明授权

US07265558B1 Radar level gauge using elliptically or circularly polarized waves 有权
标题翻译：使用椭圆或圆偏振波的雷达液位计
公开(公告)号：US07265558B1
公开(公告)日：2007-09-04
申请号：US11543451
申请日：2006-10-05
申请人： Niklas Penndal , Anders Jirskog , Olov Edvardsson
发明人： Niklas Penndal , Anders Jirskog , Olov Edvardsson
IPC分类号： G01R27/04
CPC分类号： G01F23/284
摘要： A radar level gauge (RLG) is provided for determining a filling level of a filling material contained in a container by transmitting and receiving elliptically or circularly polarized waves. The RLG comprises: a feeding circuitry for feeding and receiving two essentially orthogonal elliptically polarized waveguide modes, one of the modes for transmission and another mode for reception; an antenna for transmitting the waveguide modes towards the filling material and for receiving reflected signals; and a waveguide to provide signals between said feeding circuitry and the antenna. Further, the feeding circuitry comprises: a microwave generating unit (TX); a microwave receiving unit (RX); at least three feeding probes being at least partly exposed to the interior of the waveguide; and a coupling circuitry for transferring and feeding signals between each feeding probe and the microwave generating unit and/or the microwave receiving unit. At least the coupling circuitry and the feeding probes are implemented on a common printed circuit board (PCB), and the printed circuit board is arranged transversely over the waveguide.
摘要翻译：提供雷达液位计（RLG），用于通过发送和接收椭圆或圆偏振波来确定容纳在容器中的填充材料的填充水平。 RLG包括：馈送电路，用于馈送和接收两个基本上正交的椭圆偏振波导模式，其中一种传输模式和另一种接收模式; 用于将波导模式朝向填充材料传输并用于接收反射信号的天线; 以及在所述馈电电路和天线之间提供信号的波导。此外，馈电电路包括：微波发生单元（TX）; 微波接收单元（RX）; 至少三个进料探针至少部分地暴露于波导的内部; 以及用于在每个馈送探针与微波产生单元和/或微波接收单元之间传送和馈送信号的耦合电路。至少耦合电路和馈电探针实现在公共印刷电路板（PCB）上，并且印刷电路板横向布置在波导上。

3. 发明授权

US08872694B2 Radar level gauging using frequency modulated pulsed wave 有权
标题翻译：雷达电平测量采用调频脉冲波
公开(公告)号：US08872694B2
公开(公告)日：2014-10-28
申请号：US12981995
申请日：2010-12-30
申请人： Olov Edvardsson , Anders Jirskog
发明人： Olov Edvardsson , Anders Jirskog
IPC分类号： G01S13/08 , G01S13/88 , H01Q1/22 , G01F23/284 , G01S13/26
CPC分类号： G01S13/88 , G01F23/284 , G01S13/26 , H01Q1/225
摘要： A method for measurement of a distance to a surface of a product kept in a tank method comprises transmitting a pulse train of distinct carrier wave pulses having a duration greater than 1 microsecond and shorter than 100 milliseconds, the pulse train has an average duty cycle of less than 50 percent, each pulse has a defined center frequency, selected according to a frequency scheme within a predetermined frequency range, greater than 5% of an average center frequency. The method further comprises correlating actual phase properties of received pulses with expected phase properties to provide an updated estimation of the distance.The present invention is based on transmitting a set of carrier wave pulses, each having a distinct frequency selected within a frequency range. The method is therefore referred to as a Frequency Modulated Pulsed Wave (FMPW).
摘要翻译：用于测量到保持在罐方法中的产品的表面的距离的方法包括传输具有大于1微秒且小于100毫秒的持续时间的不同载波脉冲的脉冲串，脉冲串的平均占空比为小于50％，每个脉冲具有定义的中心频率，其根据在预定频率范围内的频率方案选择，大于平均中心频率的5％。该方法还包括将接收到的脉冲的实际相位特性与期望的相位特性相关联以提供距离的更新估计。本发明基于传输一组载波波形，每组载波波形在频率范围内具有选择的不同频率。因此，该方法被称为频率调制脉冲波（FMPW）。

4. 发明申请

US20090085794A1 RADAR LEVEL GAUGE SYSTEM 审中-公开
标题翻译：雷达液位计系统
公开(公告)号：US20090085794A1
公开(公告)日：2009-04-02
申请号：US11863564
申请日：2007-09-28
申请人： Olov Edvardsson , Bjorn Zandersson , Anders Jirskog
发明人： Olov Edvardsson , Bjorn Zandersson , Anders Jirskog
IPC分类号： G01S13/08 , G01F23/00
CPC分类号： G01S13/08 , G01F23/284 , G01S7/03 , G01S13/88
摘要： A radar level gauge system, for determining a filling level of a product contained in a tank, comprising a transceiver configured to transmit and receive electromagnetic signals, a probe arranged to extend towards and into the product inside the tank and configured to guide transmitted signals towards a surface of the product, where signals are reflected, and reflected signals back from the surface of the product. The probe has a mechanical and direct electrical connection to a conductive tank structure. The radar level gauge system further comprises processing circuitry connected to the transceiver and configured to determine the filling level based on the transmitted and reflected signals, and a probe coupling device connected to the transceiver. The probe coupling device includes a first coupling segment configured to couple electromagnetic signals between the transceiver and the probe with a first coupling efficiency and a second coupling segment configured to couple electromagnetic signals between the transceiver and the probe with a second coupling efficiency, the second coupling efficiency being different from the first coupling efficiency.
摘要翻译：一种用于确定容纳在容器中的产品的填充水平的雷达液位计系统，包括被配置为发送和接收电磁信号的收发器，布置成朝向和朝向储存器内的产品延伸并被配置成将传输的信号引导到产品的表面，其中信号被反射，并且反射信号从产品的表面返回。探针具有与导电罐结构的机械和直接电连接。雷达液位计系统还包括连接到收发器并且被配置为基于发射和反射的信号确定填充水平的处理电路，以及连接到收发器的探头耦合装置。探针耦合装置包括第一耦合部分，其被配置为以第一耦合效率耦合在收发器和探头之间的电磁信号，以及第二耦合部分，被配置为以第二耦合效率在收发器和探头之间耦合电磁信号，效率与第一耦合效率不同。

5. 发明授权

US09513153B2 Radar level gauging using frequency modulated pulsed wave 有权
标题翻译：雷达电平测量采用调频脉冲波
公开(公告)号：US09513153B2
公开(公告)日：2016-12-06
申请号：US13976567
申请日：2011-12-29
申请人： Anders Jirskog , Olov Edvardsson , Jan Westerling
发明人： Anders Jirskog , Olov Edvardsson , Jan Westerling
IPC分类号： G01S13/08 , G01F23/284 , G01S13/26 , G01S13/88
CPC分类号： G01F23/284 , G01S13/26 , G01S13/88
摘要： A method for measurement of a distance to a surface of a product kept in a tank method comprises transmitting a pulse train of distinct carrier wave pulses having a duration greater than 1 microsecond and shorter than 100 milliseconds, the pulse train has an average duty cycle of less than 50 percent, each pulse has a defined center frequency, selected according to a frequency scheme within a predetermined frequency range, greater than 5% of an average center frequency. The method further comprises correlating actual phase properties of received pulses with expected phase properties to provide an updated estimation of the distance.The present invention is based on transmitting a set of carrier wave pulses, each having a distinct frequency selected within a frequency range. The method is therefore referred to as a Frequency Modulated Pulsed Wave (FMPW).
摘要翻译：本发明基于传输一组载波波形，每组载波波形在频率范围内具有选择的不同频率。因此，该方法被称为频率调制脉冲波（FMPW）。

6. 发明授权

US08730093B2 MFPW radar level gauging with distance approximation 有权
标题翻译：具有距离近似的MFPW雷达液位计
公开(公告)号：US08730093B2
公开(公告)日：2014-05-20
申请号：US13246265
申请日：2011-09-27
申请人： Olov Edvardsson , Anders Jirskog
发明人： Olov Edvardsson , Anders Jirskog
IPC分类号： G01S13/08
CPC分类号： G01S13/88 , G01F23/284 , G01S13/26
摘要： Level gauging including an approximation of a distance to the surface of a product kept in a tank. The approximation is determined by relating an amplitude of a first harmonic of an IF signal with an amplitude of a second harmonic of the IF signal.Basically, each harmonics represents a given distance range. By determining the received power in two or more harmonics, and correlating them to each other, the distance may be estimated. Depending on modulation and other parameters the distance dependence may be very different, and may be selected to suit the application.
摘要翻译：电平测量，包括与保持在罐中的产品表面距离的近似值。通过将IF信号的一次谐波的振幅与IF信号的二次谐波的振幅相关联来确定近似。基本上，每个谐波代表给定的距离范围。通过确定两个或多个谐波中的接收功率并将它们相互关联，可以估计该距离。根据调制和其他参数，距离依赖可能是非常不同的，可以选择适合应用。

7. 发明申请

US20130076560A1 MFPW RADAR LEVEL GAUGING WITH DISTANCE APPROXIMATION 有权
标题翻译： MFPW雷达水平测距与距离近似
公开(公告)号：US20130076560A1
公开(公告)日：2013-03-28
申请号：US13246265
申请日：2011-09-27
申请人： Olov Edvardsson , Anders Jirskog
发明人： Olov Edvardsson , Anders Jirskog
IPC分类号： G01S13/26
CPC分类号： G01S13/88 , G01F23/284 , G01S13/26
摘要： Level gauging including an approxiamtion of a distance to the surface of a product kept in a tank. The approxiamtion is determined by relating an amplitude of a first harmonic of an IF signal with an amplitude of a second harmonic of the IF signal.Basically, each harmonics represents a given distance range. By determining the received power in two or more harmonics, and correlating them to each other, the distance may be estimated. Depending on modulation and other parameters the distance dependence may be very different, and may be selected to suit the application.
摘要翻译：电平测量，包括与保存在水箱中的产品表面的距离近似。通过将IF信号的一次谐波的振幅与IF信号的二次谐波的振幅相关联来确定近似值。基本上，每个谐波代表给定的距离范围。通过确定两个或多个谐波中的接收功率并将它们相互关联，可以估计该距离。根据调制和其他参数，距离依赖可能是非常不同的，可以选择适合应用。

8. 发明申请

US20120169528A1 RADAR LEVEL GAUGING USING FREQUENCY MODULATED PULSED WAVE 有权
标题翻译：使用频率调制脉冲波的雷达电平测量
公开(公告)号：US20120169528A1
公开(公告)日：2012-07-05
申请号：US12981995
申请日：2010-12-30
申请人： Olov Edvardsson , Anders Jirskog
发明人： Olov Edvardsson , Anders Jirskog
IPC分类号： G01S13/08
CPC分类号： G01S13/88 , G01F23/284 , G01S13/26 , H01Q1/225
摘要： A method for measurement of a distance to a surface of a product kept in a tank method comprises transmitting a pulse train of distinct carrier wave pulses having a duration greater than 1 microsecond and shorter than 100 milliseconds, the pulse train has an average duty cycle of less than 50 percent, each pulse has a defined center frequency, selected according to a frequency scheme within a predetermined frequency range, greater than 5% of an average center frequency. The method further comprises correlating actual phase properties of received pulses with expected phase properties to provide an updated estimation of the distance.The present invention is based on transmitting a set of carrier wave pulses, each having a distinct frequency selected within a frequency range. The method is therefore referred to as a Frequency Modulated Pulsed Wave (FMPW).
摘要翻译：用于测量到保持在罐方法中的产品的表面的距离的方法包括传输具有大于1微秒且小于100毫秒的持续时间的不同载波脉冲的脉冲串，脉冲串具有平均占空比小于50％，每个脉冲具有定义的中心频率，其根据在预定频率范围内的频率方案选择，大于平均中心频率的5％。该方法还包括将接收到的脉冲的实际相位特性与期望的相位特性相关联以提供距离的更新估计。本发明基于传输一组载波波形，每组载波波形在频率范围内具有选择的不同频率。因此，该方法被称为频率调制脉冲波（FMPW）。

9. 发明授权

US07586435B1 Radar level gauge system using a waveguiding structure with periodically arranged reference impedance transitions 有权
标题翻译：雷达液位计系统使用具有周期性排列的参考阻抗转换的波导结构
公开(公告)号：US07586435B1
公开(公告)日：2009-09-08
申请号：US12122016
申请日：2008-05-16
申请人： Olov Edvardsson
发明人： Olov Edvardsson
IPC分类号： G01S13/08
CPC分类号： G01S13/88 , G01F23/284 , G01S7/4052 , G01S7/4056 , G01S2007/4078
摘要： A radar level gauge system, for determining a filling level of a product contained in a tank, said radar level gauge system comprising: a transceiver for generating, transmitting and receiving electromagnetic signals within a frequency range; a waveguiding structure arranged to extend into said product contained in the tank and to guide a transmitted signal from said transceiver towards a surface of said product and to guide echo signals resulting from reflections at impedance transitions encountered by the transmitted electromagnetic signals, including a surface echo signal resulting from reflection at said surface, back to said transceiver; a plurality of reference impedance transitions provided substantially periodically along said waveguiding structure with a distance between adjacent reference impedance transitions that is selected such that signals resulting from reflection of said transmitted signal at each of said reference impedance transitions combine to form a reference signal having a frequency within said frequency range; and processing circuitry connected to said transceiver for determining a propagation velocity of said electromagnetic signals in a medium inside the tank above said surface of the product based on said frequency of said reference signal and said distance between adjacent reference impedance transitions, and determining said filling level based on said surface echo signal and said propagation velocity.
摘要翻译：一种用于确定容纳在容器中的产品的填充水平的雷达液位计系统，所述雷达液位计系统包括：用于在频率范围内产生，发射和接收电磁信号的收发器; 波导结构被布置成延伸到容纳在所述容器中的所述产品中并且将来自所述收发器的传输信号引导到所述产品的表面，并且引导由所发射的电磁信号遇到的阻抗转变处的反射产生的回波信号，包括表面回波由所述表面反射产生的信号返回到所述收发器; 沿着所述波导结构基本上周期性地设置多个参考阻抗转变，其中相邻参考阻抗转变之间的距离被选择为使得在所述参考阻抗转变中的每一个处的所述发射信号的反射产生的信号组合以形成具有频率在所述频率范围内; 以及连接到所述收发器的处理电路，用于基于所述参考信号的所述频率和相邻参考阻抗转换之间的所述距离确定所述电池信号在所述容器内部介质内的介质的传播速度，并且确定所述填充水平基于所述表面回波信号和所述传播速度。

10. 发明授权

US07525476B1 System and method for filling level determination 有权
标题翻译：灌装水平测定的系统和方法
公开(公告)号：US07525476B1
公开(公告)日：2009-04-28
申请号：US11938995
申请日：2007-11-13
申请人： Håkan Delin , Olov Edvardsson
发明人： Håkan Delin , Olov Edvardsson
IPC分类号： G01F23/284 , G01S7/40 , G01S13/08 , G01S13/00 , G01F23/28 , G01F23/00
CPC分类号： G01S7/4052 , G01F23/284 , G01S7/4056 , G01S13/08 , G01S2007/4078
摘要： A method for determining a filling level of a product contained in a tank, by means of a radar level gauge system comprising a transceiver for generating, transmitting and receiving electromagnetic signals; a probe connected to the transceiver and arranged to guide a transmitted electromagnetic signal from the transceiver towards and into the product inside the tank, and to return a reflected electromagnetic signal resulting from reflection of the transmitted electromagnetic signal by a surface of the product back towards the transceiver; and a plurality of reference reflectors each being arranged at a respective known position along the probe and being configured to reflect a portion of the transmitted electromagnetic signal back towards the transceiver. The method comprises the steps of identifying, based on received electromagnetic signals reflected by the reference reflectors, a set of reference reflectors located above the surface of the product; selecting first and second reference reflectors comprised in the set of reference reflectors; determining a propagation velocity compensation factor based on a known distance between the first and second reference reflectors and a distance therebetween determined using received electromagnetic signals reflected by the first and second reference reflector, respectively; and determining the filling level based on a received electromagnetic signal reflected by the surface of the product, and the propagation velocity compensation factor.
摘要翻译：一种用于通过包括用于产生，发射和接收电磁信号的收发器的雷达液位计系统来确定包含在罐中的产品的填充水平的方法; 连接到所述收发器并被布置成将来自所述收发器的发射的电磁信号引导到所述罐内的产品的探针，并且将由所述产品的表面反射的所发射的电磁信号的反射的电磁信号返回到所述反射器收发器以及多个参考反射器，每个参考反射器各自沿着探头布置在相应的已知位置处，并被配置为将所发射的电磁信号的一部分反射回收发器。该方法包括以下步骤：基于由参考反射器反射的接收到的电磁信号，识别位于产品表面上方的一组参考反射器; 选择包括在所述一组参考反射器中的第一和第二参考反射器; 基于第一和第二参考反射器之间的已知距离确定传播速度补偿因子，以及使用由第一和第二参考反射器反射的接收电磁信号确定传播速度补偿因子之间的距离; 以及基于由产品的表面反射的接收的电磁信号和传播速度补偿因子来确定填充水平。

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