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公开(公告)号：US07437948B2
公开(公告)日：2008-10-21
申请号：US10590393
申请日：2005-02-24
申请人： Masami Kishiro , Kouji Hagiwara , Toshihiro Yamamoto , Hironobu Yao , Yoshinori Ohmuro , Noritomo Hirayama
发明人： Masami Kishiro , Kouji Hagiwara , Toshihiro Yamamoto , Hironobu Yao , Yoshinori Ohmuro , Noritomo Hirayama
IPC分类号： G01F1/66
摘要： A flowmeter includes: a transit time method unit having a sensor and a reception signal amplification control unit and a flow rate calculation unit which are connected to the sensor via a sensor selector switch; a pulse Doppler method having a reception signal amplification control unit and an integration calculation unit which are connected to the sensor; a transmission/reception timing control unit common to them; a measurement method selection control unit for controlling switching between the transit time method unit and the pulse Doppler method unit, and parallel operation; and a measurement value output selector switch for selecting the output of the transit time method unit and the pulse Doppler method unit. That is, the single flowmeter can perform flow rate measurement by the transit time method having no restriction on the measurement range as well as by the pulse Doppler method having an upper limit of the measurement range but enabling a highly accurate measurement.
摘要翻译： 流量计包括：具有传感器和接收信号放大控制单元和流量计算单元的通行时间方法单元，其经由传感器选择开关连接到传感器; 脉冲多普勒方法，具有连接到所述传感器的接收信号放大控制单元和积分计算单元; 它们共同的发送/接收定时控制单元; 测量方法选择控制单元，用于控制通过时间方法单元和脉冲多普勒方法单元之间的切换，并行操作; 以及用于选择通过时间方法单元和脉冲多普勒方法单元的输出的测量值输出选择器开关。 也就是说，单个流量计可以通过对测量范围没有限制的通过时间方法以及具有测量范围的上限但能够进行高精度测量的脉冲多普勒方法来进行流量测量。
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2.发明申请Apparatus and method for measuring a fluid flow rate profile using acoustic doppler effect 有权用声多普勒效应测量流体流速曲线的装置和方法公开(公告)号：US20060020404A1
公开(公告)日：2006-01-26
申请号：US11183181
申请日：2005-07-15
IPC分类号： G01F17/00
CPC分类号： G01F1/663 , G01F1/668 , G01F25/0007 , G01P5/241
摘要： An apparatus and method for measuring a flow velocity profile of fluid traveling in a pipe or conduit uses an ultrasonic wave transmitted from an ultrasonic wave transducer mounted at an angle on the outside of a pipe using a wedge, and made incident onto the fluid in the pipe to measure the fluid flow velocity profile, using the principle that a frequency of an ultrasonic wave, reflected by a reflector existing in the fluid, is changed depending on a flow velocity due to Doppler effect. The transmission frequency and the angle of incidence onto the pipe can be selected to suppress frequency dependence of a measured value due to Lamb wave and allow the flow velocity or flow rate of fluid to be measured with a greater accuracy.
摘要翻译： 用于测量在管道或管道中行进的流体的流速分布的装置和方法使用从使用楔形件以一定角度安装在管道外部的超声波换能器发射的超声波，并且入射到管道或管道中的流体上 管道，用于根据由于多普勒效应引起的流速而改变由流体中存在的反射器反射的超声波的频率的原理来测量流体流速分布。 可以选择传输频率和入口角度，以抑制由于兰姆波引起的测量值的频率依赖性，并允许以更高的精度测量流体的流速或流量。
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3.发明授权Apparatus and method for measuring a fluid flow rate profile using acoustic doppler effect 有权用声多普勒效应测量流体流速曲线的装置和方法公开(公告)号：US07363174B2
公开(公告)日：2008-04-22
申请号：US11183181
申请日：2005-07-15
CPC分类号： G01F1/663 , G01F1/668 , G01F25/0007 , G01P5/241
摘要： An apparatus and method for measuring a flow velocity profile of fluid traveling in a pipe or conduit uses an ultrasonic wave transmitted from an ultrasonic wave transducer mounted at an angle on the outside of a pipe using a wedge, and made incident onto the fluid in the pipe to measure the fluid flow velocity profile, using the principle that a frequency of an ultrasonic wave, reflected by a reflector existing in the fluid, is changed depending on a flow velocity due to Doppler effect. The transmission frequency and the angle of incidence onto the pipe can be selected to suppress frequency dependence of a measured value due to Lamb wave and allow the flow velocity or flow rate of fluid to be measured with a greater accuracy.
摘要翻译： 用于测量在管道或管道中行进的流体的流速分布的装置和方法使用从使用楔形件以一定角度安装在管道外部的超声波换能器发射的超声波，并且入射到管道或管道中的流体上 管道，用于根据由于多普勒效应引起的流速而改变由流体中存在的反射器反射的超声波的频率的原理来测量流体流速分布。 可以选择传输频率和入口角度，以抑制由于兰姆波引起的测量值的频率依赖性，并允许以更高的精度测量流体的流速或流量。
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公开(公告)号：US20070220995A1
公开(公告)日：2007-09-27
申请号：US10590393
申请日：2005-02-24
申请人： Masami Kishiro , Kouji Hagiwara , Toshihiro Yamamoto , Hironobu Yao , Yoshinori Ohmuro , Norimoto Hirayama
发明人： Masami Kishiro , Kouji Hagiwara , Toshihiro Yamamoto , Hironobu Yao , Yoshinori Ohmuro , Norimoto Hirayama
IPC分类号： G01F1/66
摘要： A flowmeter includes: a transit time method unit having a sensor and a reception signal amplification control unit and a flow rate calculation unit which are connected to the sensor via a sensor selector switch; a pulse Doppler method having a reception signal amplification control unit and an integration calculation unit which are connected to the sensor; a transmission/reception timing control unit common to them; a measurement method selection control unit for controlling switching between the transit time method unit and the pulse Doppler method unit, and parallel operation; and a measurement value output selector switch for selecting the output of the transit time method unit and the pulse Doppler method unit. That is, the single flowmeter can perform flow rate measurement by the transit time method having no restriction on the measurement range as well as by the pulse Doppler method having an upper limit of the measurement range but enabling a highly accurate measurement.
摘要翻译： 流量计包括：具有传感器和接收信号放大控制单元和流量计算单元的通行时间方法单元，其经由传感器选择开关连接到传感器; 脉冲多普勒方法，具有连接到所述传感器的接收信号放大控制单元和积分计算单元; 它们共同的发送/接收定时控制单元; 测量方法选择控制单元，用于控制通过时间方法单元和脉冲多普勒方法单元之间的切换，并行操作; 以及用于选择通过时间方法单元和脉冲多普勒方法单元的输出的测量值输出选择器开关。 也就是说，单个流量计可以通过对测量范围没有限制的通过时间方法以及具有测量范围的上限但能够进行高精度测量的脉冲多普勒方法来进行流量测量。
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5.发明申请Apparatus and method for measuring a fluid velocity profile using acoustic doppler effect 审中-公开使用声学多普勒效应测量流体速度分布的装置和方法公开(公告)号：US20050154307A1
公开(公告)日：2005-07-14
申请号：US10999224
申请日：2004-11-29
摘要： A clamp-on type acoustic Doppler current profiler eliminates, among ultrasound echoes caused by two measurement lines of a longitudinal wave and a shear wave propagating in a piping, the ultrasound echo based on the longitudinal wave, thereby providing the measurement of a flow rate profile and/or a flow rate with a higher accuracy. The profiler includes a wedge mounted to the piping. The wedge includes an inclined surface at which an ultrasonic transducer can be mounted. The inclination is such that the ultrasound transducer receives only the ultrasound echo from the reflection of a shear wave component off the reflectors in the fluid.
摘要翻译： 钳位式声学多普勒电流分析器在由纵波和横波在管道中传播的剪切波的两条测量线引起的超声波回波中消除基于纵波的超声波回波，从而提供流量曲线的测量 和/或具有更高精度的流量。 轮廓仪包括安装到管道上的楔形物。 楔形件包括可安装超声换能器的倾斜表面。 倾斜度使得超声波换能器仅从流体中的反射器的剪切波分量的反射中仅接收超声回波。
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公开(公告)号：US07077012B2
公开(公告)日：2006-07-18
申请号：US11042356
申请日：2005-01-25
IPC分类号： G01F1/66
摘要： A wedge unit according to the present invention is used for an ultrasonic Doppler flow meter, being mounted on the outer wall of a pipe in which a fluid flows, supplying an ultrasonic wave to the fluid, receives the reflected wave and supplies the reflected wave to a flow rate calculation unit, comprises a wedge with one surface thereof being mounted on a part of the outer circumference of the pipe and on another surface thereof being equipped with an ultrasonic oscillator that generates the ultrasonic wave in response to an electric signal and receives the reflected wave; and an ultrasonic wave attenuation unit being mounted on the outer circumference of the pipe so as to include a position where an ultrasonic wave injected from the ultrasonic oscillator into the pipe by way of the wedge first reaches the outer wall of the pipe after being reflected by the inner wall thereof.
摘要翻译： 根据本发明的楔形单元用于超声多普勒流量计，安装在流体流动的管的外壁上，向流体提供超声波，接收反射波并将反射波提供给 一个流量计算单元，包括楔形件，其一个表面安装在管的外圆周的一部分上，另一表面上装有一个响应于电信号产生超声波的超声波振荡器，并接收 反射波; 并且超声波衰减单元被安装在管的外周上，以便包括从超声波振荡器注入到超声波振荡器中的超声波通过楔形件首先在被 其内壁。
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公开(公告)号：US20050166684A1
公开(公告)日：2005-08-04
申请号：US11042356
申请日：2005-01-25
IPC分类号： G01F1/66
摘要： A wedge unit according to the present invention is used for an ultrasonic Doppler flow meter, being mounted on the outer wall of a pipe in which a fluid flows, supplying an ultrasonic wave to the fluid, receives the reflected wave and supplies the reflected wave to a flow rate calculation unit, comprises a wedge with one surface thereof being mounted on a part of the outer circumference of the pipe and on another surface thereof being equipped with an ultrasonic oscillator that generates the ultrasonic wave in response to an electric signal and receives the reflected wave; and an ultrasonic wave attenuation unit being mounted on the outer circumference of the pipe so as to include a position where an ultrasonic wave injected from the ultrasonic oscillator into the pipe by way of the wedge first reaches the outer wall of the pipe after being reflected by the inner wall thereof.
摘要翻译： 根据本发明的楔形单元用于超声多普勒流量计，安装在流体流动的管的外壁上，向流体提供超声波，接收反射波并将反射波提供给 一个流量计算单元，包括楔形件，其一个表面安装在管的外圆周的一部分上，另一表面上装有一个响应于电信号产生超声波的超声波振荡器，并接收 反射波; 并且超声波衰减单元被安装在管的外周上，以便包括从超声波振荡器注入到超声波振荡器中的超声波通过楔形件首先在被 其内壁。
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8.发明申请Ultrasonic flowmeter capable of applying both pulse doppler method and transit time method, method and program for automatically selecting measurement method in flowmeter, and electronic device for flowmeter 审中-公开超声波流量计能够应用脉冲多普勒法和通行时间法，自动选择流量计测量方法和流量计电子装置的方法和程序公开(公告)号：US20070167792A1
公开(公告)日：2007-07-19
申请号：US10589050
申请日：2005-02-25
IPC分类号： A61B8/00
摘要： The reliability of a reception wave from a transducer is checked and when the reliability is determined to be insufficient, a method different from the current method is selected. The reliability is judged by calculating a value serving as an index of the reliability of the reception wave and checking whether the value is smaller than a predetermined set value. When the value is smaller than the set value, the reliability is judged to be insufficient. The values serving as an index of the reliability of the reception wave may be the amplitude of the reception wave, the ratio of the amplitude of the reception wave against a predetermined measurable amplitude value, the ratio of the power spectrum against a predetermined power value, the ratio of transmission wave amplitude against the maximum amplitude of the reception wave, the ratio of the power spectrum of the transmission frequency included in the reception wave and obtained by Fourier transform of the reception wave against a predetermined power value, and the like.
摘要翻译： 检查来自传感器的接收波的可靠性，并且当确定可靠性不足时，选择与当前方法不同的方法。 通过计算作为接收波的可靠性的指标的值并检查该值是否小于预定设定值来判断可靠性。 当该值小于设定值时，可靠性被判定为不足。 作为接收波的可靠性的指标的值可以是接收波的幅度，接收波的振幅与预定的可测量振幅值的比，功率谱与预定功率值的比， 传输波幅度与接收波的最大幅度的比率，包括在接收波中并且通过接收波的傅里叶变换获得的发送频率的功率谱与预定功率值的比率等。
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公开(公告)号：US07806003B2
公开(公告)日：2010-10-05
申请号：US10598397
申请日：2005-02-24
IPC分类号： G01F1/66
CPC分类号： G01F1/663
摘要： In a doppler type ultrasonic flow meter (1) for measuring the volumetric flow of a measurement object fluid (10) using doppler shift of ultrasound, a pair of ultrasonic transducers (3a, 3b) perform transmission of ultrasound and reception of an ultrasound echo resulting from the ultrasound being reflected. The ultrasonic transducers (3a, 3b) are disposed on an extension line of a measurement line ML for performing measurement of doppler shift, symmetrical about the center axis (5) of a pipe (2) with a measurement object fluid (10) flowing through its inside, and on the outside of the pipe (2). A flow profile for the side opposite, with respect to the center axis (5) of the pipe (2), the side on which the respective ultrasonic transducer (3a, 3b) is disposed is used for the calculation of the volumetric flow of the measurement object fluid (10).
摘要翻译： 在多普勒型超声波流量计（1）中，用于使用超声波的多普勒偏移来测量测量对象流体（10）的体积流量，一对超声换能器（3a，3b）执行超声波的传输和超声回波的接收， 从超声波被反射。 超声波换能器（3a，3b）设置在测量线ML的延长线上，用于执行多普勒频移的测量，其中测量对象流体（10）流过管道（2）的中心轴线（5）对称 其内部和管道（2）的外侧。 相对于管道（2）的中心轴线（5）的相反侧的流动剖面，其上设置有相应超声换能器（3a，3b）的一侧用于计算所述管道 测量对象流体（10）。
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公开(公告)号：US5773727A
公开(公告)日：1998-06-30
申请号：US544367
申请日：1995-10-17
申请人： Masami Kishiro , Keita Ohkawa , Hironobu Yao , Iwao Matsumoto
发明人： Masami Kishiro , Keita Ohkawa , Hironobu Yao , Iwao Matsumoto
CPC分类号： G01F1/8409 , G01F1/8413 , G01F1/8422 , G01F1/8427 , G01F1/8472 , G01F1/849
摘要： A mass flow meter provides improved accuracy in measuring the mass flow rate of a fluid flowing through a straight measuring tube. The as measured mass flow rate value is changed by parameters such as the Young's modules, second moment of area, length, axial force, etc. of the measuring tube. The parameters change with the strain caused in the axial direction of the measuring tube. A strain sensor is installed on a measuring tube, and the as measured mass flow rate is corrected based on the output of the strain sensor. Since the strain affects in a different way the substantial mass flow rate and the zero point offset, the correction is conducted separately on the substantial mass flow rate and on the zero point offset so that the accuracy of measurement may be improved. Since the parameters change also with the temperature of the measuring tube, a temperature sensor is also installed on the measuring tube so that the accuracy of measurement may be further improved.
摘要翻译： 质量流量计提供了测量流过直的测量管的流体的质量流量的改进的精度。 通过诸如杨氏模块，测量管的面积的二次力矩，长度，轴向力等参数来改变测量的质量流量值。 参数随测量管轴向引起的应变而变化。 应变传感器安装在测量管上，并根据应变传感器的输出校正测量的质量流量。 由于应变以不同的方式影响实质的质量流量和零点偏移，所以基于实质的质量流量和零点偏移分别进行校正，从而可以提高测量精度。 由于参数随着测量管的温度而变化，所以在测量管上也安装有温度传感器，从而可以进一步提高测量精度。
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