GB1038287A - Calibration arrangement for flow meters - Google Patents

Calibration arrangement for flow meters

Info

Publication number
GB1038287A
GB1038287A GB1304465A GB1304465A GB1038287A GB 1038287 A GB1038287 A GB 1038287A GB 1304465 A GB1304465 A GB 1304465A GB 1304465 A GB1304465 A GB 1304465A GB 1038287 A GB1038287 A GB 1038287A
Authority
GB
United Kingdom
Prior art keywords
meter
pulses
piston
counter
displaced
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.)
Expired
Application number
GB1304465A
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.)
ROCHAR ELECTRONIQUE
Original Assignee
ROCHAR ELECTRONIQUE
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 to FR969435A priority Critical patent/FR1398872A/en
Application filed by ROCHAR ELECTRONIQUE filed Critical ROCHAR ELECTRONIQUE
Publication of GB1038287A publication Critical patent/GB1038287A/en
Application status is Expired legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00Testing or calibrating apparatus for measuring volume, volume flow or liquid level, or for metering by volume
    • G01F25/0007Testing or calibrating apparatus for measuring volume, volume flow or liquid level, or for metering by volume for measuring volume flow
    • G01F25/0015Testing or calibrating apparatus for measuring volume, volume flow or liquid level, or for metering by volume for measuring volume flow using a seal ball or piston in a test loop

Abstract

1,038,287. Calibrating flow meters. ROCHAR ELECTRONIQUE. March 26, 1965 [April 1, 1964], No. 13044/65. Heading G4H. A flow meter is calibrated by passing through it a volume of liquid measured by a piston and cylinder producing a large number of pulses per circuit volume, the pulses being applied to a counter during an interval which is the time taken for the meter under test to register a given volume, the difference between the counter reading and a theoretical number giving the meter error. The cylinder 10 has its ends connected together via pipe 16 and the flow meter 18 under test. Piston 22 in the cylinder is displaced by nut 28 engaged with threaded rod 30. The rod is rotated by motor 34 through reduction gear 32 and a disc 36 on the rod generates photoelectrically a thousand pulses for each litre of liquid forced through the meter 18 by piston 22. The output pulses of the meter 18 are amplified at 46, divided by N (160) at 48 and applied to gate 50. The pulses from disc 36 are applied via gate 60 to counter 64. Gate 60 is opened for a measured interval by clock 62. A manometer device 44 measures the pressure difference alross the meter 18 and this is plotted at a on recorder 68. The output of divider 48 is plotted at b and is a square wave the duration of which is the time taken for meter 18 to make 160 revolutions, representing 10 litres. This signal opens gate 50 allowing the pulses from disc 36 to pass to counter 56. If meter 18 is accurate there should be 10,000 pulses during this period. The counter has four decades and should therefore return to zero. Any error is indicated on the counter, the value being complemented if necessary and the sign of the error indicated at 58. The speed of rotation of rod 30 may be varied to test the meter at different flow speeds. To test the tightness of piston 22 valve 40 is closed to introduce a restriction 42 in the meter loop. This increases the pressure differential on the piston and the leakage, if any. Tests are again made on the meter 18 and the results compared. If they are identical the leakage is zero. In a modification the piston is displaced in the cylinder by pressure generated by a pump. Displaced liquid passes through the meter under test and pulses are derived to measure the volume displaced by the piston as before.
GB1304465A 1964-04-01 1965-03-26 Calibration arrangement for flow meters Expired GB1038287A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR969435A FR1398872A (en) 1964-04-01 1964-04-01 Calibration Bench gauges Flow meter

Publications (1)

Publication Number Publication Date
GB1038287A true GB1038287A (en) 1966-08-10

Family

ID=8826834

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1304465A Expired GB1038287A (en) 1964-04-01 1965-03-26 Calibration arrangement for flow meters

Country Status (3)

Country Link
DE (1) DE1498424B1 (en)
FR (1) FR1398872A (en)
GB (1) GB1038287A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479458A1 (en) * 1980-03-28 1981-10-02 Rockwell International Corp Apparatus for calibrating fluid meters using digital techniques
US4347731A (en) * 1980-03-28 1982-09-07 Rockwell International Corporation Control apparatus for meter prover
US4365503A (en) * 1980-03-28 1982-12-28 Rockwell International Apparatus for calibrating meter prover encoder
US4549426A (en) * 1983-10-28 1985-10-29 Smith Meter, Inc. Compact flow prover
US4637244A (en) * 1982-11-26 1987-01-20 Robert Maurer Meter provers
US4766759A (en) * 1985-07-19 1988-08-30 Calibron Systems, Inc. Apparatus and method for determining the flow characteristic of a volumetric flowmeter
GB2295896A (en) * 1994-12-08 1996-06-12 Sgs Redwood Ltd Calibration of flowmeters

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468890B1 (en) * 1979-11-05 1981-11-06 Mestrole Mesure Controle Autom
FR2481449A1 (en) * 1980-04-29 1981-10-30 Sereg Soc Flow control system for calibrating turbine flow counter - uses pulses from counter to operate electro-valves to initiate and stop measuring circuit
CH645720A5 (en) * 1980-05-07 1984-10-15 Landis & Gyr Ag Displacement test bench for calibrating volumetric liquid meters
WO1981003379A1 (en) * 1980-05-22 1981-11-26 Telfa Jabsco Ab Device for measuring the amount flowing through and/or the speed of flow of a medium
DE3025009C2 (en) * 1980-07-02 1983-11-10 Frankfurter Gaszaehlerfabrik Dehm & Zinkeisen Gmbh, 6072 Dreieich, De
US4627267A (en) * 1985-07-19 1986-12-09 Flow Technology, Inc. Apparatus and method for determining the flow characterstic of a volumetric flowmeter
WO1987007017A1 (en) * 1986-05-12 1987-11-19 Calibron Systems, Inc. Method for determining the k-factor of a flowmeter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1126415A (en) * 1955-02-16 1956-11-22 Cie De Construction Electr A device for direct reading of meters and other errors of integrating relative to a standard
US2792705A (en) * 1955-08-15 1957-05-21 Shell Dev Apparatus for proving positivedisplacement meters
FR1255974A (en) * 1960-01-28 1961-03-17 Exxon Research Engineering Co Verification of measuring devices

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479458A1 (en) * 1980-03-28 1981-10-02 Rockwell International Corp Apparatus for calibrating fluid meters using digital techniques
US4347731A (en) * 1980-03-28 1982-09-07 Rockwell International Corporation Control apparatus for meter prover
US4365503A (en) * 1980-03-28 1982-12-28 Rockwell International Apparatus for calibrating meter prover encoder
US4419880A (en) * 1980-03-28 1983-12-13 Rockwell International Corporation Apparatus for calibrating fluid flow meters utilizing digital techniques
US4637244A (en) * 1982-11-26 1987-01-20 Robert Maurer Meter provers
US4549426A (en) * 1983-10-28 1985-10-29 Smith Meter, Inc. Compact flow prover
US4766759A (en) * 1985-07-19 1988-08-30 Calibron Systems, Inc. Apparatus and method for determining the flow characteristic of a volumetric flowmeter
GB2295896A (en) * 1994-12-08 1996-06-12 Sgs Redwood Ltd Calibration of flowmeters

Also Published As

Publication number Publication date
DE1498424B1 (en) 1970-07-23
FR1398872A (en) 1965-05-14

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