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    ULTRASONIC FLOW SENSOR WITH QUADRATURE DEMODULATION
    1.
    发明申请
    ULTRASONIC FLOW SENSOR WITH QUADRATURE DEMODULATION 失效
    超声波流量传感器

    公开(公告)号：US20080307895A1

    公开(公告)日：2008-12-18

    申请号：US12042369

    申请日：2008-03-05

    申请人： Jiawei Zhang ,  Bernhard Optiz ,  Michael Horstbrink ,  Tobias Lang ,  Axel Wenzler

    发明人： Jiawei Zhang ,  Bernhard Optiz ,  Michael Horstbrink ,  Tobias Lang ,  Axel Wenzler

    IPC分类号： G01F1/66

    CPC分类号： G01F1/667

    摘要： An ultrasonic flow sensor, in particular for determining the flow velocity of a medium flowing through a pipeline, has at least one ultrasonic converter for transmitting and/or receiving ultrasonic signals, an oscillator, which is connected with the ultrasonic converter, and an evaluation unit, which determines a phase shift of the ultrasonic signal that was received, with respect to a reference signal. The evaluation unit includes a plurality of quadrature demodulators, which operate with different demodulation frequencies and each determine phase information about the ultrasonic signal that was received, and when a vernier unit is provided, which determines—based on the individual pieces of phase information—a phase angle or a quantity proportional thereto.

    摘要翻译： 特别是用于确定流经管道的介质的流速的超声流量传感器具有至少一个用于发送和/或接收超声波信号的超声波转换器，与超声波转换器连接的振荡器以及评估单元 ，其确定相对于参考信号接收的超声波信号的相移。 评估单元包括多个正交解调器，其以不同的解调频率操作，并且各自确定关于接收到的超声波信号的相位信息，以及当提供游标单元时，其基于各个相位信息确定a 相位角或与之成比例的量。

    Ultrasonic flow sensor with quadrature demodulation
    2.
    发明授权
    Ultrasonic flow sensor with quadrature demodulation 失效
    超声波流量传感器具有正交解调功能

    公开(公告)号：US07637171B2

    公开(公告)日：2009-12-29

    申请号：US12042369

    申请日：2008-03-05

    申请人： Jiawei Zhang ,  Bernhard Opitz ,  Michael Horstbrink ,  Tobias Lang ,  Axel Wenzler

    发明人： Jiawei Zhang ,  Bernhard Opitz ,  Michael Horstbrink ,  Tobias Lang ,  Axel Wenzler

    IPC分类号： G01F1/66

    CPC分类号： G01F1/667

    摘要： An ultrasonic flow sensor, in particular for determining the flow velocity of a medium flowing through a pipeline, has at least one ultrasonic converter for transmitting and/or receiving ultrasonic signals, an oscillator, which is connected with the ultrasonic converter, and an evaluation unit, which determines a phase shift of the ultrasonic signal that was received, with respect to a reference signal. The evaluation unit includes a plurality of quadrature demodulators, which operate with different demodulation frequencies and each determine phase information about the ultrasonic signal that was received, and when a vernier unit is provided, which determines—based on the individual pieces of phase information—a phase angle or a quantity proportional thereto.

    摘要翻译： 特别是用于确定流经管道的介质的流速的超声流量传感器具有至少一个用于发送和/或接收超声波信号的超声波转换器，与超声波转换器连接的振荡器以及评估单元 ，其确定相对于参考信号接收的超声波信号的相移。 评估单元包括多个正交解调器，其以不同的解调频率操作，并且各自确定关于接收到的超声波信号的相位信息，以及当提供游标单元时，其基于各个相位信息确定a 相位角或与之成比例的量。

    Ultrasonic sensor with reciprocal transmitting and receiving circuit
    3.
    发明授权
    Ultrasonic sensor with reciprocal transmitting and receiving circuit 有权
    超声波传感器具有互补的发射和接收电路

    公开(公告)号：US07775124B2

    公开(公告)日：2010-08-17

    申请号：US12031925

    申请日：2008-02-15

    申请人： Bernhard Optiz ,  Michael Horstbrink ,  Tobias Lang ,  Johannes Artzner

    发明人： Bernhard Optiz ,  Michael Horstbrink ,  Tobias Lang ,  Johannes Artzner

    IPC分类号： G01F1/66

    CPC分类号： G01F1/667

    摘要： An ultrasonic sensor has at least two ultrasonic converters for transmitting and receiving ultrasonic signals, connected with a transmitting circuit and a receiving circuit. A switching device is provided, by which the ultrasonic converters are connected in series when in the transmission mode, and they are separated from each other when in the receiving mode.

    摘要翻译： 超声波传感器具有至少两个用于发送和接收超声信号的超声波转换器，与发射电路和接收电路连接。 提供了一种开关装置，通过该开关装置，超声波转换器在传送模式下串联连接，并且当处于接收模式时它们彼此分离。

    Ultrasonic flow sensor for detecting a flow of a fluid medium
    6.
    发明申请
    Ultrasonic flow sensor for detecting a flow of a fluid medium 有权
    用于检测流体介质流动的超声波流量传感器

    公开(公告)号：US20120285260A1

    公开(公告)日：2012-11-15

    申请号：US13501393

    申请日：2010-08-18

    申请人： Roland Mueller ,  Gerhard Hueftle ,  Michael Horstbrink ,  Tobias Lang ,  Sami Radwan ,  Bernd Kuenzl ,  Roland Wanja

    发明人： Roland Mueller ,  Gerhard Hueftle ,  Michael Horstbrink ,  Tobias Lang ,  Sami Radwan ,  Bernd Kuenzl ,  Roland Wanja

    IPC分类号： G01F1/66

    CPC分类号： G01F1/662 ,  G01F1/667

    摘要： An ultrasonic flow sensor for detecting a flow of a fluid medium in a flow tube includes at least one first ultrasonic transducer, at least one second ultrasonic transducer, and at least one waveguide configured to conduct ultrasonic waves between the at least one first ultrasonic transducer and the at least one second ultrasonic transducer by reflection on walls of the waveguide, and to enable the fluid medium to flow through. The ultrasonic waves are able to propagate between the first ultrasonic transducer and the second ultrasonic transducer on at least two ultrasonic paths. Sound energies of the ultrasonic waves transmitted on the at least two different ultrasonic paths differ from one another by no more than a factor of 100.

    摘要翻译： 用于检测流管中的流体介质的流动的超声波流量传感器包括至少一个第一超声波换能器，至少一个第二超声波换能器和至少一个波导，所述至少一个波导被配置为在所述至少一个第一超声波换能器和 所述至少一个第二超声波换能器通过在所述波导的壁上的反射，并且使得所述流体介质能够流过。 超声波能够在至少两个超声波路径上在第一超声换能器和第二超声换能器之间传播。 在至少两个不同的超声波路径上传输的超声波的声能彼此不同，不超过100。