FR2449870A1 - Appareil de mesure d'ecoulement du type a tourbillons de karman - Google Patents

Appareil de mesure d'ecoulement du type a tourbillons de karman

Info

Publication number
FR2449870A1
FR2449870A1 FR8004081A FR8004081A FR2449870A1 FR 2449870 A1 FR2449870 A1 FR 2449870A1 FR 8004081 A FR8004081 A FR 8004081A FR 8004081 A FR8004081 A FR 8004081A FR 2449870 A1 FR2449870 A1 FR 2449870A1
Authority
FR
France
Prior art keywords
frequency
signal
fluid
flow
karman
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
FR8004081A
Other languages
English (en)
Other versions
FR2449870B1 (fr
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of FR2449870A1 publication Critical patent/FR2449870A1/fr
Application granted granted Critical
Publication of FR2449870B1 publication Critical patent/FR2449870B1/fr
Expired 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
    • G01F1/3273—Means for detecting quantities used as proxy variables for swirl for detecting fluid speed oscillations by thermal sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0033—Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means
    • G01L9/0035—Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means using variations in ohmic resistance
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'INVENTION CONCERNE UN APPAREIL DE MESURE D'UN ECOULEMENT DU TYPE A TOURBILLONS DE KARMAN QUI COMPREND UNE GAINE PAR OU S'ECOULE UN FLUIDE DONT LE DEBIT OU LA VITESSE DOIT ETRE MESURE ET UN ORGANE DE FORMATION DES TOURBILLONS EN FORME DE COLONNE QUI S'ETEND DANS LE CONDUIT TRANSVERSALEMENT A LA DIRECTION D'ECOULEMENT DU FLUIDE. SELON L'INVENTION, ON PREVOIT UN MOYEN 6 POUR DETECTER LA FREQUENCE DE LA FORMATION DES TOURBILLONS ET CONVERTIR LA FREQUENCE DETECTEE EN UN SIGNAL ELECTRIQUE, UN COMPARATEUR 20 AYANT UNE BORNE D'ENTREE RECEVANT LE SIGNAL ELECTRIQUE CONVERTI ET L'AUTRE RECEVANT UN SIGNAL DE NIVEAU D'ECRETAGE ET UN MOYEN 16, 17 POUR DETERMINER LE NIVEAU D'ECRETAGE DE FACON QU'IL VARIE SELON LES FLUCTUATIONS DU SIGNAL ELECTRIQUE CONVERTI; AINSI LE COMPARATEUR PRODUIT UN SIGNAL IMPULSIONNEL DE SORTIE EN SYNCHRONISME AVEC LA FREQUENCE DE FORMATION DES TOURBILLONS. L'INVENTION S'APPLIQUE NOTAMMENT A LA MESURE DE L'ECOULEMENT D'AIR DANS LE CONDUIT D'ADMISSION D'UN VEHICULE.
FR8004081A 1979-02-26 1980-02-25 Appareil de mesure d'ecoulement du type a tourbillons de karman Expired FR2449870B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2077479A JPS55113911A (en) 1979-02-26 1979-02-26 Karman vortex flow meter

Publications (2)

Publication Number Publication Date
FR2449870A1 true FR2449870A1 (fr) 1980-09-19
FR2449870B1 FR2449870B1 (fr) 1986-04-25

Family

ID=12036497

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8004081A Expired FR2449870B1 (fr) 1979-02-26 1980-02-25 Appareil de mesure d'ecoulement du type a tourbillons de karman

Country Status (5)

Country Link
US (1) US4334426A (fr)
JP (1) JPS55113911A (fr)
DE (1) DE3006766C2 (fr)
FR (1) FR2449870B1 (fr)
GB (1) GB2044456B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088827A1 (fr) * 1982-03-15 1983-09-21 Mitsubishi Denki Kabushiki Kaisha Appareil de mesure de vitesse d'un courant
EP0628792A1 (fr) * 1993-06-11 1994-12-14 Schlumberger Industries Système de mesure de signaux d'un oscillateur fluidique

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5698614A (en) * 1980-01-10 1981-08-08 Nissan Motor Co Ltd Flow senser of karman vortex street
JPS604408B2 (ja) * 1980-11-19 1985-02-04 日産自動車株式会社 カルマン渦流量計
JPS586225U (ja) * 1981-07-03 1983-01-14 日産自動車株式会社 機関吸気流量計測用カルマン渦流量計の信号処理装置
JPS5828618A (ja) * 1981-07-24 1983-02-19 Toyota Motor Corp 内燃機関の燃料噴射装置
US4432242A (en) * 1981-12-10 1984-02-21 The Babcock & Wilcox Company Tunable notch filter for reducing vibration sensitivity for vortex shedding flowmeter generator
JPS59103930A (ja) * 1982-12-07 1984-06-15 Nippon Denso Co Ltd 内燃機関の制御方法
DE3419738A1 (de) * 1984-05-26 1985-12-05 Focke & Co, 2810 Verden Vorrichtung zum pruefen von zigaretten
JPH07113340B2 (ja) * 1985-07-18 1995-12-06 三菱自動車工業 株式会社 内燃機関の燃料制御装置
GB8613851D0 (en) * 1986-06-06 1986-07-09 Neptune Measurement Ltd Vortex shedding flowmeter
WO1988000686A1 (fr) * 1986-07-17 1988-01-28 Mitsubishi Denki Kabushiki Kaisha Appareil de mesure de la quantite d'air admis dans des moteurs
DE3732856A1 (de) * 1987-09-29 1989-04-06 Siemens Ag Intelligenter luftmengenmesser
JPH0654245B2 (ja) * 1988-04-19 1994-07-20 三菱電機株式会社 渦流量計
US6220103B1 (en) * 1996-07-15 2001-04-24 Engineering Measurements Company Vortex detector and flow meter
JP5407815B2 (ja) * 2009-12-02 2014-02-05 株式会社デンソー 受信処理装置及び通信装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709034A (en) * 1971-02-02 1973-01-09 Fischer & Porter Co Signal conditioner for recovering dominant signals from swirl-type meters
GB1442445A (en) * 1973-06-22 1976-07-14 Ibm Two level signal extraction circuit
DE2610336A1 (de) * 1975-03-14 1976-09-16 Eastech Anordnung und verfahren zur verarbeitung eines zusammengesetzten eingangssignals

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225213A (en) * 1962-05-18 1965-12-21 Beckman Instruments Inc Transition detector
JPS5418947B2 (fr) * 1972-11-09 1979-07-11

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709034A (en) * 1971-02-02 1973-01-09 Fischer & Porter Co Signal conditioner for recovering dominant signals from swirl-type meters
GB1442445A (en) * 1973-06-22 1976-07-14 Ibm Two level signal extraction circuit
DE2610336A1 (de) * 1975-03-14 1976-09-16 Eastech Anordnung und verfahren zur verarbeitung eines zusammengesetzten eingangssignals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/78 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088827A1 (fr) * 1982-03-15 1983-09-21 Mitsubishi Denki Kabushiki Kaisha Appareil de mesure de vitesse d'un courant
EP0628792A1 (fr) * 1993-06-11 1994-12-14 Schlumberger Industries Système de mesure de signaux d'un oscillateur fluidique
FR2706608A1 (fr) * 1993-06-11 1994-12-23 Schlumberger Ind Sa Système de mesure de signaux d'un oscillateur fluidique.
US5574228A (en) * 1993-06-11 1996-11-12 Schlumberger Industries, S.A. System for measuring fluid oscillator signals

Also Published As

Publication number Publication date
US4334426A (en) 1982-06-15
DE3006766A1 (de) 1980-09-04
JPS55113911A (en) 1980-09-02
GB2044456A (en) 1980-10-15
FR2449870B1 (fr) 1986-04-25
DE3006766C2 (de) 1983-11-24
GB2044456B (en) 1983-10-19

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Legal Events

Date Code Title Description
ST Notification of lapse