FR2449870A1 - Appareil de mesure d'ecoulement du type a tourbillons de karman - Google Patents
Appareil de mesure d'ecoulement du type a tourbillons de karmanInfo
- 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
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.
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)
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)
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)
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)
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 |
-
1979
- 1979-02-26 JP JP2077479A patent/JPS55113911A/ja active Pending
-
1980
- 1980-02-22 US US06/123,570 patent/US4334426A/en not_active Expired - Lifetime
- 1980-02-22 DE DE3006766A patent/DE3006766C2/de not_active Expired
- 1980-02-25 FR FR8004081A patent/FR2449870B1/fr not_active Expired
- 1980-02-25 GB GB8006298A patent/GB2044456B/en not_active Expired
Patent Citations (3)
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)
Title |
---|
EXBK/78 * |
Cited By (4)
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 |