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。

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。