DE208045T1 - Verfahren zum feststellen der genauigkeit eines instruments zum gasmessen. - Google Patents

Verfahren zum feststellen der genauigkeit eines instruments zum gasmessen.

Info

Publication number
DE208045T1
DE208045T1 DE198686100507T DE86100507T DE208045T1 DE 208045 T1 DE208045 T1 DE 208045T1 DE 198686100507 T DE198686100507 T DE 198686100507T DE 86100507 T DE86100507 T DE 86100507T DE 208045 T1 DE208045 T1 DE 208045T1
Authority
DE
Germany
Prior art keywords
measuring
gas
accuracy
instrument
determining
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
DE198686100507T
Other languages
English (en)
Inventor
Irwin A. Radnor Pennsylvania 19087 Hicks
Robert S. Hatboro Pennsylvania 19040 Jacobsen
David F. Glenside Pennsylvania 19038 Kee
Jr. George W. Huntingdon Valley Pennsylvania 19006 Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elster American Meter Co LLC
Original Assignee
American Meter Co Inc
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
Application filed by American Meter Co Inc filed Critical American Meter Co Inc
Publication of DE208045T1 publication Critical patent/DE208045T1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
    • G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Claims (1)

86 100 507.2 American Reter Conpany Patentansprüche
1. Verfahren zur Bestimmung der Genauigkeit eines Gasmeßinstruments in einer Hochdruckrohrleitung, enthaltend die folgenden Schritte:
(a) Anordnen einer ersten kritischen Strömungsvorrichtung in Serie mit dem Instrument;
(b) Bestimmen des Koeffizienten des Auslaß-Einschnürungsflächenfaktors <C . A) für eine zweite, kleinere, kritische Strömungsvorrichtung unter Verwendung eines bekannten Gases und eines Glockenprüfgeräts, wobei
Vb Pb Tns
Cds \s
Pns Tb Zb C* YRTns
und Z. C Vr* eine bekannte Menge des bekannten Gases ist;
(c) Ermitteln des Faktors C. I. VrT1 für das Gas in der Rohrleitung mit den folgenden Schritten:
(c1) Anordnen einer Bypassleitung zu der genannten Rohrleitung;
(c2> Anordnen eines Heßgeräts in der Bypassleitung;
(c3) Installieren der zweiten kritischen Strömungsvorrichtung in der Bypassleitung unmittelbar stromabwärts von dem Meßgerät;
(c4) Messen des Gasvolumens (V1), das durch das Meßgerät in einer gegebenen Zeit (t2> strömt; und
(c5) Berechnen von C,. Z1.
Cds Ats *2
(d) Messen des Volumens (V ), das durch das Instrument
während einer vorbestimmten Zeit (t) bei einem Meßdruck (P ) und einer Temperatur (T ) strömt/ und eim m
nen ersten Vorrichtungsdruck (P ) und zugehörige Temperatur (T ); und
(e) Berechnen der prozentualen Genauigkeit des Instrumentes als
Prozentuale Genauigkeit =
Vm Pm Tn Cds \s
&khgr; 100 .
Pn Tm Cd\ f^ V1
DE198686100507T 1985-05-16 1986-01-16 Verfahren zum feststellen der genauigkeit eines instruments zum gasmessen. Pending DE208045T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/734,934 US4590790A (en) 1985-05-16 1985-05-16 Method for determining the accuracy of a gas measurement instrument

Publications (1)

Publication Number Publication Date
DE208045T1 true DE208045T1 (de) 1987-06-11

Family

ID=24953650

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8686100507T Expired DE3664236D1 (en) 1985-05-16 1986-01-16 Method for determining the accuracy of a gas measurement instrument
DE198686100507T Pending DE208045T1 (de) 1985-05-16 1986-01-16 Verfahren zum feststellen der genauigkeit eines instruments zum gasmessen.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8686100507T Expired DE3664236D1 (en) 1985-05-16 1986-01-16 Method for determining the accuracy of a gas measurement instrument

Country Status (10)

Country Link
US (1) US4590790A (de)
EP (1) EP0208045B1 (de)
JP (1) JPS61266922A (de)
KR (1) KR860009291A (de)
CN (1) CN86100663B (de)
AU (1) AU582207B2 (de)
BR (1) BR8602417A (de)
CA (1) CA1248363A (de)
DE (2) DE3664236D1 (de)
DK (1) DK164414C (de)

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US4753095A (en) * 1986-06-16 1988-06-28 Chevron Research Company Method for determining real gas effects in critical flow nozzles
US4706492A (en) * 1986-06-16 1987-11-17 Chevron Research Company Method and apparatus for determining real gas effects in critical flow nozzles
US4729236A (en) * 1986-12-12 1988-03-08 The United States Of America As Represented By The Secretary Of The Army Automatic orifice calibrator
US4823591A (en) * 1987-11-05 1989-04-25 Horiba Instruments Incorporated Calibration method for exhaust mass flow measuring system
US4821557A (en) * 1988-03-08 1989-04-18 Arkla, Inc. Method and apparatus for determining the accuracy of a gas flow meter
GB9020759D0 (en) * 1990-09-24 1990-11-07 Schlumberger Ltd Improvements relating to meters
US5323657A (en) * 1991-11-04 1994-06-28 Badger Meter, Inc. Volumetric flow corrector and method
US5299447A (en) * 1992-07-13 1994-04-05 Ford Motor Company Air flow manifold system for providing two different mass air flow rates to a mass air flow sensor production calibration station
US5307667A (en) * 1992-07-13 1994-05-03 Ford Motor Company Response time test apparatus for a mass air flow sensor
US5267467A (en) * 1992-07-27 1993-12-07 Ford Motor Company Mass air flow sensor two temperature production line test apparatus
US5455781A (en) * 1993-08-31 1995-10-03 Dresser Industries, Inc. Apparatus and method for determining the measurement accuracy of electronic gas meters
US5421188A (en) * 1993-10-28 1995-06-06 Texaco Inc. Proving means and method
NL9400108A (nl) * 1994-01-24 1995-09-01 Instromet Bv Inrichting voor het bepalen van het debiet van de hoeveelheid afgegeven gas.
JP2642880B2 (ja) * 1994-08-26 1997-08-20 工業技術院長 流量計の校正方法
DE19543331C2 (de) * 1995-11-21 2001-10-31 Ruhrgas Ag Verfahren zum Bestimmen des Volumenstroms eines durch ein Rohr strömenden, insbesondere gasförmigen Mediums
DE19824098C2 (de) * 1998-05-29 2000-05-11 Alois Ehrler Vorrichtung zur Erzeugung eines störungsfreien Luftmengenstroms
US6705173B1 (en) 2001-09-05 2004-03-16 Autoquip, Inc. Air flow rate meter
US7775236B2 (en) * 2007-02-26 2010-08-17 Applied Materials, Inc. Method and apparatus for controlling gas flow to a processing chamber
US8074677B2 (en) * 2007-02-26 2011-12-13 Applied Materials, Inc. Method and apparatus for controlling gas flow to a processing chamber
US7846497B2 (en) * 2007-02-26 2010-12-07 Applied Materials, Inc. Method and apparatus for controlling gas flow to a processing chamber
US9714852B2 (en) * 2012-10-01 2017-07-25 Ulc Robotics, Inc. Gas flow test apparatus and method
CN103900665B (zh) * 2014-03-25 2016-08-31 重庆市计量质量检测研究院 容器组合及换向阀式pVTt法气体流量装置
DE112017003536B4 (de) * 2016-07-13 2021-10-07 Energoflow Ag Gaszählereichanlage im geschlossenen Druckkreislauf
US10648621B2 (en) * 2017-07-26 2020-05-12 John B. King Trapped gas transfer and metering system
CN107421608A (zh) * 2017-08-18 2017-12-01 北京首钢自动化信息技术有限公司 一种气体流量计的***校准方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US749645A (en) * 1904-01-12 Fluid-meter
US4027523A (en) * 1975-11-12 1977-06-07 Textron, Inc. Methods and apparatus for proof testing gas meters
JPS56117122A (en) * 1980-02-22 1981-09-14 Oval Eng Co Ltd Automatic testing device for flow rate or the like using sound speed nozzle
US4432230A (en) * 1982-05-25 1984-02-21 Stahler John A Method and apparatus for calibrating pumps

Also Published As

Publication number Publication date
DK54286D0 (da) 1986-02-04
AU5242786A (en) 1986-11-20
JPS61266922A (ja) 1986-11-26
CN86100663B (zh) 1988-09-28
EP0208045B1 (de) 1989-07-05
DK164414B (da) 1992-06-22
AU582207B2 (en) 1989-03-16
DE3664236D1 (en) 1989-08-10
CN86100663A (zh) 1986-11-12
US4590790A (en) 1986-05-27
DK54286A (da) 1986-11-17
BR8602417A (pt) 1987-01-21
CA1248363A (en) 1989-01-10
KR860009291A (ko) 1986-12-22
EP0208045A2 (de) 1987-01-14
EP0208045A3 (en) 1987-12-16
DK164414C (da) 1992-12-21

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