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1.发明申请Doppler ultrasonic flowmeter, and processor and method thereof with quantization error correction 有权多普勒超声波流量计，以及具有量化误差校正的处理器及其方法公开(公告)号：US20050209793A1
公开(公告)日：2005-09-22
申请号：US11066730
申请日：2005-02-25
CPC分类号： G01F1/663
摘要： In a Doppler ultrasonic flowmeter, to obtain a precise flow rate a flow rate calculation equation that corrects a quantization error occurring to a spatial resolution is used. An ultrasonic transducer transmits/receives ultrasonic pulses, and subject the resulting received signals to A/D conversion after a predetermined process is applied thereto. A computation control section calculates the flow velocity distribution. Then, the flow rate is calculated based on the flow rate calculation equation, which corrects the quantization error occurring to the spatial resolution.
摘要翻译： 在多普勒超声波流量计中，为了获得精确的流量，使用了校正空间分辨率产生的量化误差的流量计算式。 超声波换能器发送/接收超声波脉冲，并且在施加了预定的处理之后将所得到的接收信号进行A / D转换。 计算控制部分计算流速分布。 然后，基于流量计算式来计算流量，该流量校正校正空间分辨率发生的量化误差。
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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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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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4.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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公开(公告)号：US5831178A
公开(公告)日：1998-11-03
申请号：US705343
申请日：1996-08-29
CPC分类号： G01F1/849 , G01F1/8418 , G01F1/8431 , G01F1/8436 , G01N9/002 , B29C2043/046 , B29K2105/251
摘要： A vibration type measuring instrument measures at least one of a mass flow rate and a density of a fluid flowing through a straight measurement pipe by vibrating the measurement pipe, obtains a frequency ratio of a resonant frequency of a first vibration mode to a resonant frequency of a second vibration mode of the measurement pipe, and corrects a measured value of at least one of the mass flow rate and the density according to the frequency ratio. The instrument includes a first vibration detector for detecting at least one of a vibration generated in the measurement pipe depending on the mass flow rate and the resonant frequency of the first vibration mode of the measurement pipe; and a second vibration detector for detecting the resonant frequency of the second vibration mode of the measurement pipe. The second vibration detector is provided around an antinode of the second vibration mode of the measurement pipe to improve the detection sensitivity in the second vibration mode.
摘要翻译： 振动型测量仪器通过振动测量管来测量流过直线测量管的流体的质量流量和密度中的至少一个，获得第一振动模式的谐振频率与谐振频率的频率比 测量管的第二振动模式，并且根据频率比来校正质量流率和密度中的至少一个的测量值。 该仪器包括：第一振动检测器，用于根据质量流量和测量管的第一振动模式的共振频率来检测在测量管中产生的振动中的至少一个; 以及第二振动检测器，用于检测测量管的第二振动模式的共振频率。 第二振动检测器围绕测量管的第二振动模式的波腹设置，以提高第二振动模式下的检测灵敏度。
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6.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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公开(公告)号：US5796010A
公开(公告)日：1998-08-18
申请号：US613007
申请日：1996-03-08
申请人： Masami Kishiro , Hironobu Yao
发明人： Masami Kishiro , Hironobu Yao
IPC分类号： G01F1/84
CPC分类号： G01F1/8409 , G01F1/8413 , G01F1/8418 , G01F1/8427 , G01F1/8431 , G01F1/8436 , G01F1/849
摘要： A Coriolis mass flowmeter includes a housing which contains at least one measuring pipe, a supporting mechanism connected to both ends of the measuring pipe, a vibration generator which vibrates the measuring pipe, at least two sensors for detecting the vibration of the measuring pipe, an inlet conduit which introduces a fluid to be measured into the measuring pipe and an outlet conduit which discharges the fluid out of the measuring pipe. A Corioli vibration is applied to the measuring pipe which generates a Coriolis force in the fluid flowing in the measuring pipe. The Coriolis force is utilized for the measurement of the flow rate of the fluid. The Coriolis vibration has a frequency higher than the principal natural frequency of the supporting mechanism, i.e., in an inertial control region. The mass flowmeter is of a simple structure and lightweight, minimizes leakage of the energy of vibration to the outside, and has a high mechanical Q value.
摘要翻译： 科里奥利质量流量计包括：壳体，其包含至少一个测量管，连接到测量管的两端的支撑机构，使测量管振动的振动发生器，用于检测测量管的振动的至少两个传感器， 将测量流体引入测量管的入口导管和将流体排出测量管的出口导管。 科里奥利振动被施加到在测量管中流动的流体中产生科里奥利力的测量管。 科里奥利力用于测量流体的流速。 科里奥利振动的频率高于支撑机构的主要固有频率，即在惯性控制区域中。 质量流量计结构简单，重量轻，最大限度地减少振动能量向外部泄漏，机械Q值高。
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9.发明授权Doppler ultrasonic flowmeter, and processor and method thereof with quantization error correction 有权多普勒超声波流量计，以及具有量化误差校正的处理器及其方法公开(公告)号：US07584065B2
公开(公告)日：2009-09-01
申请号：US11066730
申请日：2005-02-25
IPC分类号： G01F1/00
CPC分类号： G01F1/663
摘要： In a Doppler ultrasonic flowmeter, to obtain a precise flow rate a flow rate calculation equation that corrects a quantization error occurring to a spatial resolution is used. An ultrasonic transducer transmits/receives ultrasonic pulses, and subject the resulting received signals to A/D conversion after a predetermined process is applied thereto. A computation control section calculates the flow velocity distribution. Then, the flow rate is calculated based on the flow rate calculation equation, which corrects the quantization error occurring to the spatial resolution.
摘要翻译： 在多普勒超声波流量计中，为了获得精确的流量，使用了校正空间分辨率产生的量化误差的流量计算式。 超声波换能器发送/接收超声波脉冲，并且在施加了预定的处理之后将所得到的接收信号进行A / D转换。 计算控制部分计算流速分布。 然后，基于流量计算式来计算流量，该流量校正校正空间分辨率发生的量化误差。
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公开(公告)号：US5965824A
公开(公告)日：1999-10-12
申请号：US925019
申请日：1997-09-08
申请人： Masami Kishiro , Hironobu Yao
发明人： Masami Kishiro , Hironobu Yao
CPC分类号： G01F15/024 , G01F1/849 , G01N9/002 , G01N2009/006
摘要： A vibration type measuring instrument measures at least one of density and mass flow rate of a fluid in a straight measurement pipe by vibrating the pipe. The vibration type measuring instrument comprises the pipe; a sensor for detecting the vibration of the pipe; and a signal processing circuit for obtaining the resonant angular frequency .omega. and axial force T based on the detection signal of the sensor, and obtaining the density .rho.w of the fluid flowing through the pipe using the obtained resonant angular frequency .omega. and axial force T. The density .rho.w is obtained by the following equation (E1). ##EQU1## (E: the Young's modulus of the pipe, I: a cross-sectional secondary moment of the pipe, Si: a cross-sectional area of the hollow portion of the pipe, .rho.t: a density of the pipe, St: the actual cross-sectional area of the pipe, L: the length in the axial direction of the pipe, x: a position in the axial direction of the pipe, y: a vibration amplitude of the pipe at position x, n: a number of masses added to the pipe, mk: a mass of a k-th added mass, and yk: a vibration amplitude of the k-th added mass).
摘要翻译： 振动型测量仪器通过振动管道来测量直线测量管中的流体的密度和质量流量中的至少一个。 振动式测量仪器包括管道; 用于检测管道振动的传感器; 以及信号处理电路，用于基于传感器的检测信号获得谐振角频率ω和轴向力T，并且使用获得的谐振角频率ω和轴向力T获得流过管道的流体的密度rho w。 密度rho w通过下式（E1）获得。 （E：管的杨氏模量，I：管的横截面二次力矩，Si：管的中空部分的横截面面积，管道密度，St：实际 管的横截面积L：管轴方向的长度x：管的轴向位置y：X位置的管的振幅，n：质量的数量 添加到管中，mk：第k个加质量的质量，yk：第k个加质量的振幅）。
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