RU94015853A - METHOD FOR OBTAINING THE VALUE OF THE MECHANICAL ZERO OF A KORIOLIS MEASURER AND A CORIOLIS MEASURER - Google Patents

METHOD FOR OBTAINING THE VALUE OF THE MECHANICAL ZERO OF A KORIOLIS MEASURER AND A CORIOLIS MEASURER

Info

Publication number
RU94015853A
RU94015853A RU94015853/28A RU94015853A RU94015853A RU 94015853 A RU94015853 A RU 94015853A RU 94015853/28 A RU94015853/28 A RU 94015853/28A RU 94015853 A RU94015853 A RU 94015853A RU 94015853 A RU94015853 A RU 94015853A
Authority
RU
Russia
Prior art keywords
meter
measures
temperature
flow
measurer
Prior art date
Application number
RU94015853/28A
Other languages
Russian (ru)
Other versions
RU2119149C1 (en
Inventor
Бракк Роберт
Original Assignee
Микро Моушн, Инк.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/728,547 external-priority patent/US5228327A/en
Application filed by Микро Моушн, Инк. filed Critical Микро Моушн, Инк.
Publication of RU94015853A publication Critical patent/RU94015853A/en
Application granted granted Critical
Publication of RU2119149C1 publication Critical patent/RU2119149C1/en

Links

Claims (1)

Устройство и соответствующие способы для использования в кориолисовом измерителе по существу исключают вызванные температурой измерительные ошибки, которые в противном случае могут создаваться за счет отличий в работе отдельных входных каналов, содержащихся в измерителе. Конкретнее, в измерителе имеются две пары входных каналов. В процессе работы измеритель повторно измеряет внутреннюю фазовую задержку каждой из этих пар, а затем вычитает задержку, связанную с каждой парой, из реальных вызванных расходом измерительных данных, полученных для них последовательно. В то время как одна пара каналов измеряет реальный расход, другая пара каналов измеряет свою внутреннюю фазовую задержку, причем каналы постоянно циклически переключаются между этими функциями. Поскольку обе пары каналов циклически переключаются с достаточно большой скоростью, текущая величина внутренней фазовой задержки для каждой из пар каналов в точности отражает любые вызванные температурой изменения, происходящие затем в работе этой пары, исключая тем самым по существу все вызванные температурой ошибочные компоненты из измерений расхода, последовательно проводимых на них. Кроме того, измеритель измеряет температуру проточной трубки таким способом, что удаляет из нее вызванные температурой ошибки. Более того, измеритель также измеряет и обновляет свою величину механического нуля, используя только измерения Δt, полученные в отсутствие расхода, которые имеют достаточно низкое содержание шума, эта величина механического нуля последовательно вычитается из вызванных расходом измерительных данных для исключения из них ошибок, которые, в противном случае, будут оставаться.The device and the corresponding methods for use in a Coriolis meter essentially eliminate temperature-induced measurement errors, which could otherwise be generated due to differences in the operation of the individual input channels contained in the meter. More specifically, there are two pairs of input channels in the meter. During operation, the meter re-measures the internal phase delay of each of these pairs, and then subtracts the delay associated with each pair from the actual flow-related measurement data obtained for them sequentially. While one channel pair measures the actual flow rate, the other channel pair measures its internal phase delay, and the channels constantly cycle through these functions. Since both channel pairs cycle at a sufficiently high rate, the current internal phase delay for each channel pair accurately reflects any temperature-related changes that then occur in this pair, thereby eliminating essentially all temperature-induced error components from the flow measurements, consistently held on them. In addition, the meter measures the temperature of the flow tube in such a way that it removes temperature-related errors from it. Moreover, the meter also measures and updates its mechanical zero value, using only Δt measurements obtained in the absence of flow, which have a fairly low noise content, this mechanical zero value is successively subtracted from the measurement data caused by the flow to eliminate errors from them, which otherwise, will remain.
RU94015853A 1991-07-11 1992-07-02 Method for determination of mechanical zero of coriolis meter, coriolis meter for measuring specific flow rate of liquid medium flowing through it RU2119149C1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/728,547 1991-07-11
US07/728,547 US5228327A (en) 1991-07-11 1991-07-11 Technique for determining a mechanical zero value for a coriolis meter

Publications (2)

Publication Number Publication Date
RU94015853A true RU94015853A (en) 1995-09-20
RU2119149C1 RU2119149C1 (en) 1998-09-20

Family

ID=24927287

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94015853A RU2119149C1 (en) 1991-07-11 1992-07-02 Method for determination of mechanical zero of coriolis meter, coriolis meter for measuring specific flow rate of liquid medium flowing through it

Country Status (19)

Country Link
US (1) US5228327A (en)
EP (1) EP0593604B1 (en)
JP (1) JP2583011B2 (en)
KR (1) KR0144126B1 (en)
CN (1) CN1053498C (en)
AT (1) ATE135460T1 (en)
AU (1) AU661022B2 (en)
BR (1) BR9206116A (en)
CA (1) CA2111698C (en)
CZ (1) CZ4494A3 (en)
DE (1) DE69209076T2 (en)
ES (1) ES2086753T3 (en)
HU (1) HU216207B (en)
MX (1) MX9204043A (en)
MY (1) MY110208A (en)
PL (1) PL169832B1 (en)
RU (1) RU2119149C1 (en)
SK (1) SK2894A3 (en)
WO (1) WO1993001472A1 (en)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231884A (en) * 1991-07-11 1993-08-03 Micro Motion, Inc. Technique for substantially eliminating temperature induced measurement errors from a coriolis meter
US5419189A (en) * 1993-08-30 1995-05-30 Lew; Hyok S. Method for obtaining zero flowmeter reading for zero flow
US5469748A (en) * 1994-07-20 1995-11-28 Micro Motion, Inc. Noise reduction filter system for a coriolis flowmeter
US5594180A (en) * 1994-08-12 1997-01-14 Micro Motion, Inc. Method and apparatus for fault detection and correction in Coriolis effect mass flowmeters
WO1998031990A1 (en) * 1997-01-16 1998-07-23 Direct Measurement Corporation Signal processing and field proving methods and circuits for a coriolis mass flow meter
JPH10300548A (en) * 1997-04-25 1998-11-13 Ricoh Co Ltd Method for correcting output of flow sensor
US8467986B2 (en) * 1997-11-26 2013-06-18 Invensys Systems, Inc. Drive techniques for a digital flowmeter
US8447534B2 (en) 1997-11-26 2013-05-21 Invensys Systems, Inc. Digital flowmeter
US6311136B1 (en) * 1997-11-26 2001-10-30 Invensys Systems, Inc. Digital flowmeter
US7404336B2 (en) 2000-03-23 2008-07-29 Invensys Systems, Inc. Correcting for two-phase flow in a digital flowmeter
US7784360B2 (en) * 1999-11-22 2010-08-31 Invensys Systems, Inc. Correcting for two-phase flow in a digital flowmeter
US20030216874A1 (en) * 2002-03-29 2003-11-20 Henry Manus P. Drive techniques for a digital flowmeter
US7124646B2 (en) * 1997-11-26 2006-10-24 Invensys Systems, Inc. Correcting for two-phase flow in a digital flowmeter
US6293157B1 (en) 1998-01-02 2001-09-25 Graco Minnesota Inc. Compensation of coriolis meter motion induced signal
US6513392B1 (en) * 1998-12-08 2003-02-04 Emerson Electric Co. Coriolis mass flow controller
US6748813B1 (en) 1998-12-08 2004-06-15 Emerson Electric Company Coriolis mass flow controller
US6227059B1 (en) 1999-01-12 2001-05-08 Direct Measurement Corporation System and method for employing an imaginary difference signal component to compensate for boundary condition effects on a Coriolis mass flow meter
US6516651B1 (en) * 1999-07-22 2003-02-11 Analog Devices, Inc. Coriolis effect transducer
DE01918944T1 (en) * 2000-03-23 2004-10-21 Invensys Systems, Inc., Foxboro CORRECTION FOR A TWO-PHASE FLOW IN A DIGITAL FLOWMETER
US7188534B2 (en) * 2003-02-10 2007-03-13 Invensys Systems, Inc. Multi-phase coriolis flowmeter
US7059199B2 (en) * 2003-02-10 2006-06-13 Invensys Systems, Inc. Multiphase Coriolis flowmeter
US6997032B2 (en) * 2003-04-08 2006-02-14 Invensys Systems, Inc. Flowmeter zeroing techniques
US7013740B2 (en) * 2003-05-05 2006-03-21 Invensys Systems, Inc. Two-phase steam measurement system
US7072775B2 (en) * 2003-06-26 2006-07-04 Invensys Systems, Inc. Viscosity-corrected flowmeter
US7065455B2 (en) * 2003-08-13 2006-06-20 Invensys Systems, Inc. Correcting frequency in flowtube measurements
JP4994665B2 (en) * 2003-08-29 2012-08-08 マイクロ・モーション・インコーポレーテッド Method and apparatus for correcting output information of flow measuring device
DE10351313A1 (en) * 2003-10-31 2005-05-25 Abb Patent Gmbh Method for zero point correction of a measuring device
US6997033B2 (en) * 2004-02-03 2006-02-14 Emerson Electric Co. Flow meter pickoff assembly and flow meter pickoff adjustment method for nulling flow meter zero offset
US7040181B2 (en) 2004-03-19 2006-05-09 Endress + Hauser Flowtec Ag Coriolis mass measuring device
DE102004014029A1 (en) * 2004-03-19 2005-10-06 Endress + Hauser Flowtec Ag, Reinach In-line device for fluid measurements, e.g. mass flow rate, has vibratory measurement tube inside outer housing with flanges at each end and fitted with vibration sensors
MXPA06014154A (en) 2004-06-14 2007-03-07 Micro Motion Inc Coriolis flow meter and method for determining a signal difference in cabling and first and second pickoff sensors.
US7337084B2 (en) * 2005-06-21 2008-02-26 Invensys Systems, Inc. Switch-activated zero checking feature for a Coriolis flowmeter
US7617055B2 (en) 2006-08-28 2009-11-10 Invensys Systems, Inc. Wet gas measurement
US8751171B2 (en) * 2007-03-07 2014-06-10 Invensys Systems, Inc. Coriolis frequency tracking
MX2010011639A (en) * 2008-05-01 2010-11-30 Micro Motion Inc Very high frequency vibratory flow meter.
AU2013205299B2 (en) * 2008-07-30 2016-02-25 Micro Motion, Inc. Optimizing processor operation in a processing system including one or more digital filters
CN102113215B (en) 2008-07-30 2013-12-25 微动公司 Optimizing processor operation in processing system including one or more digital filters
JP4888550B2 (en) * 2009-12-29 2012-02-29 横河電機株式会社 Coriolis mass flow meter
DE102010006224A1 (en) * 2010-01-28 2011-08-18 Krohne Ag Method for determining a parameter for the correction of measured values of a Coriolis mass flowmeter
RU2571173C2 (en) * 2011-06-27 2015-12-20 Майкро Моушн, Инк. Oscillatory flow rate meter and method of zero control
BR112014016574B1 (en) * 2012-01-10 2020-10-27 Micro Motion, Inc field service device, and method of replacing the processing system for a vibrating flow meter
US8590361B1 (en) * 2012-01-27 2013-11-26 Onicon, Inc. Magnetic flow meters with automatic field maintenance
WO2017117030A1 (en) * 2015-12-28 2017-07-06 Nudge Systems, LLC Fluid flow sensing systems and methods of use
EP4168752A1 (en) 2020-06-18 2023-04-26 Endress + Hauser Flowtec AG Vibronic measuring system
DE102020131649A1 (en) 2020-09-03 2022-03-03 Endress + Hauser Flowtec Ag Vibronic measuring system
DE102020127382A1 (en) 2020-10-16 2022-04-21 Endress+Hauser Flowtec Ag Procedure for checking a vibronic measuring system
DE102021114321A1 (en) * 2021-06-02 2022-12-08 Krohne Ag Method for operating a flow meter and flow meter
DE102021120452A1 (en) * 2021-08-05 2023-02-09 Endress+Hauser Flowtec Ag Method of operating a Coriolis meter

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550426A (en) * 1969-03-18 1970-12-29 Rotron Inc Fluid meter field checking method and apparatus
US3585841A (en) * 1970-05-22 1971-06-22 Bendix Corp Self-calibrating pressure ratio measurement system
US4458323A (en) * 1980-04-18 1984-07-03 Hewlett-Packard Company Method of performing measurements and error analysis of the measurements
US4422338A (en) * 1981-02-17 1983-12-27 Micro Motion, Inc. Method and apparatus for mass flow measurement
US4491025A (en) * 1982-11-03 1985-01-01 Micro Motion, Inc. Parallel path Coriolis mass flow rate meter
FR2580819B1 (en) * 1985-04-23 1987-05-15 Commissariat Energie Atomique SYSTEM FOR DETECTING THE PRESENCE OF A PURE SIGNAL IN A DISCRETE NOISE SIGNAL MEASURED AT A CONSTANT AVERAGE NOISE RATE WITH A LOWER PROBABILITY OF PREDETERMINED FALSE DETECTION.
US4817448A (en) * 1986-09-03 1989-04-04 Micro Motion, Inc. Auto zero circuit for flow meter
EP0324783B1 (en) * 1986-10-03 1995-06-14 Micro Motion Incorporated Custody transfer meter
GB2199711B (en) * 1987-01-08 1990-10-24 Schlumberger Electronics Converter calibration
US4796466A (en) * 1987-02-17 1989-01-10 Ed Farmer System for monitoring pipelines
US5027662A (en) * 1987-07-15 1991-07-02 Micro Motion, Inc. Accuracy mass flow meter with asymmetry and viscous damping compensation
US4852409A (en) * 1988-06-09 1989-08-01 Fischer & Porter Company Signal recovery system for mass flowmeter
US4843890A (en) * 1988-07-08 1989-07-04 Micro Motion, Incorporated Coriolis mass flow rate meter having an absolute frequency output
US4879911A (en) * 1988-07-08 1989-11-14 Micro Motion, Incorporated Coriolis mass flow rate meter having four pulse harmonic rejection
US4872351A (en) * 1988-08-23 1989-10-10 Micro Motion Incorporated Net oil computer
US4876879A (en) * 1988-08-23 1989-10-31 Ruesch James R Apparatus and methods for measuring the density of an unknown fluid using a Coriolis meter
US4962666A (en) * 1989-01-11 1990-10-16 Conoco Inc. Mass flowmeter apparatus
US4959990A (en) * 1989-04-10 1990-10-02 Morris Robert H Combined mass flow/pitot tube meter
US4934196A (en) * 1989-06-02 1990-06-19 Micro Motion, Inc. Coriolis mass flow rate meter having a substantially increased noise immunity
US5003489A (en) * 1989-08-18 1991-03-26 Federal Industries Industrial Group Inc. Totalizer apparatus for flow rate measurement devices
US5009109A (en) * 1989-12-06 1991-04-23 Micro Motion, Inc. Flow tube drive circuit having a bursty output for use in a coriolis meter
US5231884A (en) * 1991-07-11 1993-08-03 Micro Motion, Inc. Technique for substantially eliminating temperature induced measurement errors from a coriolis meter

Similar Documents

Publication Publication Date Title
RU94015853A (en) METHOD FOR OBTAINING THE VALUE OF THE MECHANICAL ZERO OF A KORIOLIS MEASURER AND A CORIOLIS MEASURER
RU94012550A (en) DEVICE CORIOLIS (OPTIONS) AND METHOD FOR MEASURING THE SPECIFIC EXPENSE OF TECHNOLOGICAL FLUID THROUGH IT, THE SCHEME AND METHOD FOR MEASURING THE FIRST AND SECOND OUTPUT SIGNALS WITH ITS USE
ES2094917T3 (en) A TECHNIQUE TO SUBSTANTIALLY ELIMINATE TEMPERATURE INDUCED ERRORS ON A CORIOLIS METER.
MY110208A (en) A technique for determining a mechanical zero value for a coriolis meter.
CN108318053A (en) A kind of space optical remote camera imaging moment stated accuracy measurement method and system
CA2205309A1 (en) A technique for substantially eliminating temperature induced measurement errors from a coriolis meter
JPS57118184A (en) Time measuring device
SU945820A1 (en) Device for measuring number of periods
SU864238A1 (en) Method of measuring phase delay time of signals
SU1397743A1 (en) Multipoint digital thermometer
SU402853A1 (en) DIGITAL MEASURING INTERVALS OF TIME
SU1114966A1 (en) Digital device for measuring frequency
SU945982A1 (en) Measuring converter of short time intervals into code
SU805332A1 (en) Device for computing relative air humidity
RU2270454C2 (en) Circuit for measuring difference of group delay time (variants)
SU563048A1 (en) Pulse mass flow meter
JPS60201279A (en) Time interval measuring device
SU624235A1 (en) Arrangement for moving averaging electric signals
SU954887A1 (en) Pulse train frequency measuring device
SU559217A1 (en) Time recording device
SU108984A1 (en) A device for determining a fixed value of physical quantities that change exponentially by measuring their values in an unsteady mode
SU842834A1 (en) Device for determining root-mean square value
JPS588397A (en) Delay correction method and apparatus for measuring apparatus
SU1422181A1 (en) Digital phase meter
SU545930A1 (en) High-speed frequency p