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1. 发明专利

AU2002344016B9 Doppler ultrasonic flowmeter 未知
公开(公告)号：AU2002344016B9
公开(公告)日：2006-07-20
申请号：AU2002344016
申请日：2002-10-25
申请人： TAKEDA YASUSHI , THE TOKYO ELECTRIC POWER COMPANY INCORPORATED
发明人： TAKEDA YASUSHI , MORI MICHITSUGU
IPC分类号： G01F1/66
摘要： A Doppler type ultrasonic flowmeter has an ultrasonic transmitting means for emitting ultrasonic pulses from an ultrasonic transducer into a fluid pipe, a flow velocity profile measuring means for receiving an ultrasonic echo reflected from a measurement region in the fluid pipe thereby to measure a flow velocity profile of a fluid to be measured, a fluid flow rate computing means for calculating the flow rate thereof on the basis of the flow velocity profile of the fluid to be measured, and a frequency selecting and setting means for automatically selecting a fundamental frequency of an ultrasonic wave that causes a resonant transmission phenomenon to take place from the ultrasonic transducer. The frequency selecting and setting means controls the operation of the ultrasonic transmitting means such that an ultrasonic wave of a selected optimum frequency is emitted from the ultrasonic transducer. This arrangement makes it possible to provide a highly versatile Doppler type ultrasonic flowmeter that permits simple, easy, contactless, precise and highly accurate measurement of the flow rates of fluids to be measured that are flowing in various fluid pipes.

2. 发明公开

EP1439376A4 DOPPLER ULTRASONIC FLOWMETER 审中-公开
标题翻译： DOPPLER-ULTRASCHALLSTRÖMUNGSMESSER
公开(公告)号：EP1439376A4
公开(公告)日：2007-04-11
申请号：EP02775393
申请日：2002-10-25
申请人： TOKYO ELECTRIC POWER CO , TAKEDA YASUSHI
发明人： TAKEDA YASUSHI , MORI MICHITSUGU
IPC分类号： G01F1/66
CPC分类号： G01F1/667 , G01F1/663
摘要： A Doppler ultrasonic flowmeter comprises ultrasonic transmitting means for emitting an ultrasonic pulse into a fluid pipe from an ultrasonic transducer, flow velocity distribution measuring means for measuring the flow velocity distribution of the fluid being measured by receiving ultrasonic echos reflected from the measurement region in the fluid pipe, fluid flow rate calculating means for calculating the flow rate from the flow velocity distribution of the fluid, and frequency selection setting means for automatically selecting a fundamental frequency of an ultrasonic wave causing a resonance transmission phenomenon from the ultrasonic transducer. The frequency selection setting means controls the operation of the ultrasonic transmitting means so that an ultrasonic wave of the selected most suitable frequency may be generated by the ultrasonic transducer. With this constitution, a Doppler ultrasonic flowmeter with high uersatility for simply and readily measuring the flow rate of a fluid being measured and flowing in a fluid pipe of any of various types in a noncontact way with good accuracy and precision.

3. 发明公开

EP1637846A4 BUBBLE GENERATOR FOR USE IN DOPPLER ULTRASONIC FLOWMETER AND DOPPLER ULTRASONIC FLOWMETER 有权
标题翻译：泡泡发生器FOR USE IN多普勒超声流量计和多普勒超声流量计
公开(公告)号：EP1637846A4
公开(公告)日：2006-07-05
申请号：EP04745577
申请日：2004-05-26
申请人： TOKYO ELECTRIC POWER CO , TAKEDA YASUSHI
发明人： TAKEDA YASUSHI , MORI MICHITSUGU , TEZUKA KENICHI , TEZUKA HIDEAKI
IPC分类号： G01F1/66 , G01F1/704
CPC分类号： G01F1/663
摘要： A bubble generator for bringing out the performance of a Doppler ultrasonic flowmeter to the maximum. The bubble generator comprises a functional section for generating bubbles suitable to the required frequency of an ultrasonic pulse being applied into a fluid to be measured and feeding the generated bubbles into a fluid tube, and a functional section for dispersing the bubbles thus fed uniformly in the tube, wherein the bubble generator is disposed on the upstream side, in the fluid piping, of an ultrasonic transducer. The functional section for generating bubbles includes a Venturi tube for feeding bubbles into the fluid tube, the functional section for dispersing the bubbles uniformly includes a negative pressure generator disposed on the upstream side of the ultrasonic transducer, and the fluid to be measured being drawn out from the fluid tube by the functional section for dispersing the bubbles uniformly is returned into the fluid tube together with the bubbles being fed into the fluid tube through the Venturi tube.

4. 发明专利

DE602004013151T2 未知
公开(公告)号：DE602004013151T2
公开(公告)日：2009-07-02
申请号：DE602004013151
申请日：2004-05-26
申请人： TOKYO ELECTRIC POWER CO , TAKEDA YASUSHI
发明人： TAKEDA YASUSHI , MORI MICHITSUGU , TEZUKA KENICHI , TEZUKA HIDEAKI
IPC分类号： G01F1/66 , G01F1/704
摘要： A bubble generator to bring out performance of a Doppler ultrasonic flowmeter to the maximum extent is provided. The bubble generator is provided with a bubble generation member generating bubbles suitable for a predetermined frequency of an ultrasonic pulse emitted into a fluid to be measured and feeding the bubbles into the fluid pipe, and a uniform dispersion member dispersing the bubbles fed uniformly in the pipe, the bubble generator is installed on an upstream side of the fluid pipe with respect to an ultrasonic transducer. The bubble generation member has a Venturi tube, and the uniform dispersion member has a negative pressure generating device, in which the fluid to be measured drawn out by the uniform dispersion member from inside the fluid pipe is returned into the fluid pipe together with the bubbles fed into the fluid pipe via the Venturi tube.

5. 发明专利

CA2465256C DOPPLER ULTRASONIC FLOWMETER 未知
公开(公告)号：CA2465256C
公开(公告)日：2010-09-21
申请号：CA2465256
申请日：2002-10-25
申请人： TOKYO ELECTRIC POWER CO , TAKEDA YASUSHI
发明人： MORI MICHITSUGU , TAKEDA YASUSHI
IPC分类号： G01F1/66
摘要： A Doppler type ultrasonic flowmeter has an ultrasonic transmitting means for emitting ultrasonic pulses from an ultrasonic transducer into a fluid pipe, a flow velocity profile measuring means for receiving an ultrasonic echo reflected from a measurement region in the fluid pipe thereby to measure a flow velocity profile of a fluid to be measured, a fluid flow rate computing means for calculating the flow rate thereof on the basis of the flow velocity profile of the fluid to be measured, and a frequency selecting and setting means for automatically selecting a fundamental frequency of an ultrasonic wave that causes a resonant transmission phenomenon to take place from the ultrasonic transducer. The frequency selecting and setting means controls the operation of the ultrasonic transmitting means such that an ultrasonic wave of a selected optimum frequency is emitted from the ultrasonic transducer. This arrangement makes it possible to provide a highly versatile Doppler type ultrasonic flowmeter that permits simple, easy, contactless, precise and highly accurate measurement of the flow rates of fluids to be measured that are flowing in various fluid pipes.

6. 发明专利

CA2488036A1 DOPPLER TYPE ULTRASONIC FLOWMETER, FLOW RATE MEASURING METHOD USING DOPPLER TYPE ULTRASONIC FLOWMETER AND FLOW RATE MEASURING PROGRAM USED IN THIS DOPPLER TYPE ULTRASONIC FLOWMETER 未知
公开(公告)号：CA2488036A1
公开(公告)日：2003-12-11
申请号：CA2488036
申请日：2003-06-03
申请人： TAKEDA YASUSHI , TOKYO ELECTRIC POWER CO
发明人： MORI MICHITSUGU , TAKEDA YASUSHI
IPC分类号： G01F1/66 , G01P5/24 , G01S15/58
摘要： A Doppler type ultrasonic flowmeter (10A) comprising a Udflow unit (13) as a flow rate data acquiring measure for calculating the speeds of many reflecto r groups (25) mixed in a fluid to be measured (12), a flow rate distribution calculating means (67) comprising a flow rate distribution calculating unit (70) for processing the flow rate data to calculate the flow rate distributi on of the fluid to be measured (12) in a fluid pipeline (11), a center position detecting unit (71) for determining the center position of the fluid pipelin e (11), and an area selecting unit (72) for selecting a reflector group (25) used when calculating a flow rate distribution on the basis of divided areas obtained by dividing the interior of the fluid pipeline (11), a flow rate calculating means (68) for further processing the flow rate distribution of the fluid to be measured (12) to calculate a flow rate, and a display monito r (39) for displaying at least one of the calculated flow rate distribution an d the flow rate, whereby a more proper flow rate distribution measurement or flow rate measurement is possible even despite variations in flow rate distribution; a flow rate measuring method; and a flow rate measuring progra m.

7. 发明专利

CA2465256A1 DOPPLER ULTRASONIC FLOWMETER 未知
公开(公告)号：CA2465256A1
公开(公告)日：2003-05-01
申请号：CA2465256
申请日：2002-10-25
申请人： TOKYO ELECTRIC POWER CO , TAKEDA YASUSHI
发明人： MORI MICHITSUGU , TAKEDA YASUSHI
IPC分类号： G01F1/66
摘要： A Doppler ultrasonic flowmeter comprises ultrasonic transmitting means for emitting an ultrasonic pulse into a fluid pipe from an ultrasonic transducer , flow velocity distribution measuring means for measuring the flow velocity distribution of the fluid being measured by receiving ultrasonic echos reflected from the measurement region in the fluid pipe, fluid flow rate calculating means for calculating the flow rate from the flow velocity distribution of the fluid, and frequency selection setting means for automatically selecting a fundamental frequency of an ultrasonic wave causin g a resonance transmission phenomenon from the ultrasonic transducer. The frequency selection setting means controls the operation of the ultrasonic transmitting means so that an ultrasonic wave of the selected most suitable frequency may be generated by the ultrasonic transducer. With this constitution, a Doppler ultrasonic flowmeter with high uersatility for simpl y and readily measuring the flow rate of a fluid being measured and flowing in a fluid pipe of any of various types in a noncontact way with good accuracy an d precision.

8. 发明公开

EP1510794A4 DOPPLER TYPE ULTRASONIC FLOWMETER, FLOW RATE MEASURING METHOD USING DOPPLER TYPE ULTRASONIC FLOWMETER AND FLOW RATE MEASURING PROGRAM USED IN THIS DOPPLER TYPE ULTRASONIC FLOWMETER 审中-公开
标题翻译：多普勒型，具有多普勒类型的超声流量计流量计测方法超声波流量计和流量测量程序在本超声流程中使用多普勒TYPE米
公开(公告)号：EP1510794A4
公开(公告)日：2006-04-12
申请号：EP03733278
申请日：2003-06-03
申请人： TOKYO ELECTRIC POWER CO , TAKEDA YASUSHI
发明人： TAKEDA YASUSHI , MORI MICHITSUGU
IPC分类号： G01F1/66 , G01P5/24 , G01S15/58
CPC分类号： G01F1/663 , G01P5/241 , G01S15/582
摘要： A Doppler type ultrasonic flowmeter (10A) comprising a Udflow unit (13) as a flow rate data acquiring measure for calculating the speeds of many reflector groups (25) mixed in a fluid to be measured (12), a flow rate distribution calculating means (67) comprising a flow rate distribution calculating unit (70) for processing the flow rate data to calculate the flow rate distribution of the fluid to be measured (12) in a fluid pipeline (11), a center position detecting unit (71) for determining the center position of the fluid pipeline (11), and an area selecting unit (72) for selecting a reflector group (25) used when calculating a flow rate distribution on the basis of divided areas obtained by dividing the interior of the fluid pipeline (11), a flow rate calculating means (68) for further processing the flow rate distribution of the fluid to be measured (12) to calculate a flow rate, and a display monitor (39) for displaying at least one of the calculated flow rate distribution and the flow rate, whereby a more proper flow rate distribution measurement or flow rate measurement is possible even despite variations in flow rate distribution; a flow rate measuring method; and a flow rate measuring program.

9. 发明专利

CA2488036C DOPPLER TYPE ULTRASONIC FLOWMETER, METHOD OF OPERATION AND FLOW RATE MEASURING METHOD 未知
公开(公告)号：CA2488036C
公开(公告)日：2011-08-09
申请号：CA2488036
申请日：2003-06-03
申请人： TOKYO ELECTRIC POWER CO , TAKEDA YASUSHI
发明人： TAKEDA YASUSHI , MORI MICHITSUGU
IPC分类号： G01F1/66 , G01P5/24 , G01S15/58
摘要： A doppler ultrasonic flowmeter 10A includes: a Udflow unit 13 for calculating the speed of a great number of reflectors 25 contained in a fluid 12 to be measured; a flow-speed distribution calculating element 70 for calculating the flow-speed distribution of the fluid 12 to be measured within a fluid tube 11 by performing computation processing for the flow-speed data of the reflectors 25 received from the Udflow unit 13; a center position detecting element 71 for detecting the center position of the fluid tube 11; a flow-speed distribution calculating member 67 having an area selecting element 72 which allows the user to select a division area within the fluid tube 11 in units of the division area; the flow-speed distribution being calculated for the selected division area using the reflectors 25; and a flow calculating member 68 for measuring the flow by further performing computation processing for the flow-speed distribution of the fluid 12 to be measured. Furthermore, the doppler ultrasonic flowmeter 10A includes a display monitor 39 for displaying the calculation results output from at least one of the flow-speed distribution calculating member 67 and the flow calculating member 68. The present invention having such a configuration provides a doppler ultrasonic flowmeter, a flow measurement method, and a flow measurement program, having the advantage of enabling measurement of the flow-speed distribution and measurement of the flow, regardless of irregularities in the measurement results of the flow-speed distribution.

10. 发明专利

AT392603T 未知
公开(公告)号：AT392603T
公开(公告)日：2008-05-15
申请号：AT04745577
申请日：2004-05-26
申请人： TOKYO ELECTRIC POWER CO , TAKEDA YASUSHI
发明人： TAKEDA YASUSHI , MORI MICHITSUGU , TEZUKA KENICHI , TEZUKA HIDEAKI
IPC分类号： G01F1/66 , G01F1/704
摘要： A bubble generator to bring out performance of a Doppler ultrasonic flowmeter to the maximum extent is provided. The bubble generator is provided with a bubble generation member generating bubbles suitable for a predetermined frequency of an ultrasonic pulse emitted into a fluid to be measured and feeding the bubbles into the fluid pipe, and a uniform dispersion member dispersing the bubbles fed uniformly in the pipe, the bubble generator is installed on an upstream side of the fluid pipe with respect to an ultrasonic transducer. The bubble generation member has a Venturi tube, and the uniform dispersion member has a negative pressure generating device, in which the fluid to be measured drawn out by the uniform dispersion member from inside the fluid pipe is returned into the fluid pipe together with the bubbles fed into the fluid pipe via the Venturi tube.

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