FR2384238A1 - Fluid flow rate transducer - uses obstruction induced vortices to measure frequency representing flow rate - Google Patents

Fluid flow rate transducer - uses obstruction induced vortices to measure frequency representing flow rate

Info

Publication number
FR2384238A1
FR2384238A1 FR7708102A FR7708102A FR2384238A1 FR 2384238 A1 FR2384238 A1 FR 2384238A1 FR 7708102 A FR7708102 A FR 7708102A FR 7708102 A FR7708102 A FR 7708102A FR 2384238 A1 FR2384238 A1 FR 2384238A1
Authority
FR
France
Prior art keywords
flow rate
obstruction
fluid flow
fluid
transducer
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.)
Granted
Application number
FR7708102A
Other languages
French (fr)
Other versions
FR2384238B1 (en
Inventor
Henri Guillerm
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Priority to FR7708102A priority Critical patent/FR2384238A1/en
Priority to DE19782809254 priority patent/DE2809254A1/en
Publication of FR2384238A1 publication Critical patent/FR2384238A1/en
Application granted granted Critical
Publication of FR2384238B1 publication Critical patent/FR2384238B1/fr
Granted 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
    • G01F1/05—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 using mechanical effects
    • G01F1/20—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 using mechanical effects by detection of dynamic effects of the flow
    • G01F1/32—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 using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
    • G01F1/325—Means for detecting quantities used as proxy variables for swirl
    • G01F1/3287—Means for detecting quantities used as proxy variables for swirl circuits therefor

Abstract

An accurate industry orientated fluid flow transducer is such that obstruction is placed in the fluid flow path so that eddies or vortices are formed and the frequency of these measured to give a measurement of the fluid flow rate. A rectangular or trapezoidal obstruction (11) is placed in the flow path of the fluid in a pipe section (10), so that vortices are formed in the fluid as it flows over the sides (20, 21) of the obstruction. Liq. filled ducts in the obstruction, transmit alternating pressure signals caused by these vertices via flexible leads (30, 31) to a pressure difference transducer (32) and thence to via a monostable multivibrator (34) to a frequency measurement network (35) and display (36). Membranes isolate the internal obstruction liq. from the fluid under examination.
FR7708102A 1977-03-18 1977-03-18 Fluid flow rate transducer - uses obstruction induced vortices to measure frequency representing flow rate Granted FR2384238A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7708102A FR2384238A1 (en) 1977-03-18 1977-03-18 Fluid flow rate transducer - uses obstruction induced vortices to measure frequency representing flow rate
DE19782809254 DE2809254A1 (en) 1977-03-18 1978-03-03 Fluid flow rate transducer - uses obstruction induced vortices to measure frequency representing flow rate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7708102A FR2384238A1 (en) 1977-03-18 1977-03-18 Fluid flow rate transducer - uses obstruction induced vortices to measure frequency representing flow rate

Publications (2)

Publication Number Publication Date
FR2384238A1 true FR2384238A1 (en) 1978-10-13
FR2384238B1 FR2384238B1 (en) 1980-04-18

Family

ID=9188253

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7708102A Granted FR2384238A1 (en) 1977-03-18 1977-03-18 Fluid flow rate transducer - uses obstruction induced vortices to measure frequency representing flow rate

Country Status (1)

Country Link
FR (1) FR2384238A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424520A1 (en) * 1978-04-26 1979-11-23 Coal Industry Patents Ltd FLUID FLOW CONTROL UNIT
DE2845753A1 (en) * 1978-10-20 1980-04-30 Siemens Ag Karman vortex path gas or fluid flow meter - has high and low frequency range transducer for noise suppression
EP2009407A1 (en) * 2006-04-27 2008-12-31 Oval Corporation Converter pulse width shaping circuit and excessive flow rate meter
DE10295690B4 (en) * 2001-01-16 2014-05-28 Invensys Systems, Inc. Vortex flowmeters

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424520A1 (en) * 1978-04-26 1979-11-23 Coal Industry Patents Ltd FLUID FLOW CONTROL UNIT
DE2845753A1 (en) * 1978-10-20 1980-04-30 Siemens Ag Karman vortex path gas or fluid flow meter - has high and low frequency range transducer for noise suppression
DE10295690B4 (en) * 2001-01-16 2014-05-28 Invensys Systems, Inc. Vortex flowmeters
EP2009407A1 (en) * 2006-04-27 2008-12-31 Oval Corporation Converter pulse width shaping circuit and excessive flow rate meter
EP2009407A4 (en) * 2006-04-27 2009-04-22 Oval Corp Converter pulse width shaping circuit and excessive flow rate meter
CN101432598B (en) * 2006-04-27 2013-01-02 株式会社奥巴尔 Converter pulse width shaping circuit and excessive flow rate meter

Also Published As

Publication number Publication date
FR2384238B1 (en) 1980-04-18

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