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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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3.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：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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公开(公告)号：US5323658A
公开(公告)日：1994-06-28
申请号：US77606
申请日：1993-06-17
申请人： Hironobu Yao , Iwao Matsumoto , Masami Kishiro
发明人： Hironobu Yao , Iwao Matsumoto , Masami Kishiro
IPC分类号： G01F1/84
CPC分类号： G01F1/8413 , G01F1/8472 , G01F1/849
摘要： A Coriolis mass flowmeter which measures mass flow rate of a fluid flowing in a measuring pipe fixed to a housing, utilizing Coriolis'force generated in proportion to mass flow rate of the fluid, wherein the measuring pipe includes: a fixation portion to be fixed to the housing; a portion near the fixation portion; and a vibration canceling element attached to the housing and associated with the fixation portion, and for dynamically canceling vibration of the fixation portion of the measuring pipe, or the portion near the fixation portion of the measuring pipe. The measuring pipe may be straight, and a reinforcing member may be provided to cancel vibration of the fixation portion of the measuring pipe.
摘要翻译： 一种科里奥利质量流量计，其测量在固定到壳体上的测量管中流动的流体的质量流量，利用与流体的质量流量成比例地产生的科里奥利力，其中测量管包括：固定部分， 房屋; 靠近固定部分的部分; 以及安装在壳体上并与固定部分相关联并且用于动态地消除测量管的固定部分或测量管的固定部分附近的部分的振动的振动消除元件。 测量管可以是直的，并且可以设置加强件以消除测量管的固定部分的振动。
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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：US06883386B2
公开(公告)日：2005-04-26
申请号：US10480381
申请日：2002-06-06
申请人： Masami Osone , Hironobu Yao
发明人： Masami Osone , Hironobu Yao
摘要： It is an object to provide an ultrasonic flow amount measuring device in which a direction and position of a transducer can be accurately fixed, thereby improving workability such as a reduction in working time. In order to attain the object, ultrasonic transducers 20 are fixed with a proper interval therebetween using a positioning portion 41 attached to a positioning frame 40. The position adjustment of the wave transducer 20 is automatically carried out through a positioning spring 25b and the positioning portion 41. A guide frame 30 can be mounted at a proper position on a conduit pipe 10 irrespective of the installation of the wave transducer. The guide frame 30 is mounted without paying attention to an interval between the ultrasonic transducers and coating an acoustic coupling medium on the conduit pipe, so that selection of a setup place, etc. can be freely performed. After pre-assembly, the required acoustic coupling medium is coated on the wave ultrasonic transducers, and the positioning frame 40 is attached to the guide frame 30, so that the right directions and positions can be applied to the wave ultrasonic transducers.
摘要翻译： 本发明的目的是提供一种可以精确地固定换能器的方向和位置的超声波流量测量装置，从而提高诸如工作时间的减少的可操作性。 为了达到上述目的，使用安装在定位架40上的定位部41，以适当的间隔固定超声波换能器20。 波形传感器20的位置调整通过定位弹簧25b和定位部41自动进行。 引导框架30可以安装在导管10上的适当位置，而不管波形传感器的安装。 引导框架30安装在不注意超声波换能器之间的间隔并且在导管上涂覆声耦合介质，从而可以自由地执行设置位置等的选择。 在预组装之后，所需的声耦合介质被涂覆在波超声换能器上，并且定位框架40附接到引导框架30，使得可以将正确的方向和位置应用于波超声换能器。
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