FR2280883A1 - Appareil pour mesurer le debit d'air dans un conduit - Google Patents
Appareil pour mesurer le debit d'air dans un conduitInfo
- Publication number
- FR2280883A1 FR2280883A1 FR7523672A FR7523672A FR2280883A1 FR 2280883 A1 FR2280883 A1 FR 2280883A1 FR 7523672 A FR7523672 A FR 7523672A FR 7523672 A FR7523672 A FR 7523672A FR 2280883 A1 FR2280883 A1 FR 2280883A1
- Authority
- FR
- France
- Prior art keywords
- duct
- measuring
- air flow
- air
- flow
- 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
- G01F1/66—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
- G01F1/662—Constructional details
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT69440/74A IT1016750B (it) | 1974-08-01 | 1974-08-01 | Dispositivo per effettuare median te ultrasuoni la misura della por tata d aria in massa nel condotto di aspirazione di motori a combu stione interna |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2280883A1 true FR2280883A1 (fr) | 1976-02-27 |
FR2280883B1 FR2280883B1 (fr) | 1980-07-04 |
Family
ID=11312139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7523672A Granted FR2280883A1 (fr) | 1974-08-01 | 1975-07-29 | Appareil pour mesurer le debit d'air dans un conduit |
Country Status (6)
Country | Link |
---|---|
US (1) | US3964309A (fr) |
JP (1) | JPS5912970B2 (fr) |
DE (1) | DE2527306B2 (fr) |
FR (1) | FR2280883A1 (fr) |
GB (1) | GB1476557A (fr) |
IT (1) | IT1016750B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2309837A1 (fr) * | 1975-04-30 | 1976-11-26 | Fiat Spa | Dispositif de mesure d'un debit de gaz par ultrasons |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1071241B (it) * | 1976-07-09 | 1985-04-02 | Fiat Spa | Dispositivo per effettuare..mediante ultrasuoni..la misura della portata d aria in massa nel condotto di aspirazione di motori ad iniezione pilotata dal dispositivo stesso |
DE2648718C2 (de) * | 1976-10-27 | 1978-12-21 | Danfoss A/S, Nordborg (Daenemark) | Mit Ultraschall arbeitendes Gerät zum Ermitteln physikalischer Größen eines Mediums |
US4140012A (en) * | 1977-11-07 | 1979-02-20 | Envirotech Corporation | Small pipe flowmeter |
CH636701A5 (de) * | 1979-06-08 | 1983-06-15 | Landis & Gyr Ag | Messwertgeber zur bestimmung der durchflussmenge einer stroemenden fluessigkeit mit ultraschall. |
CH655574B (fr) * | 1982-03-01 | 1986-04-30 | ||
JPS6155674U (fr) * | 1984-09-17 | 1986-04-14 | ||
US5168762A (en) * | 1988-06-09 | 1992-12-08 | British Gas Plc | Speed measurement device |
GB8813640D0 (en) * | 1988-06-09 | 1988-07-13 | Gill M J | Speed measurement device |
GB2225426B (en) * | 1988-09-29 | 1993-05-26 | Michael John Gill | A transducer |
GB9021441D0 (en) * | 1990-10-02 | 1990-11-14 | British Gas Plc | Measurement system |
US5728948A (en) * | 1993-03-09 | 1998-03-17 | Commonwealth Scientific And Industrial Research Organisation | Fluid meter construction |
IT1272370B (it) * | 1993-04-27 | 1997-06-23 | Nuovo Pignone Spa | Misuratore-regolatore perfezionato della portata di un fluido |
US5463906A (en) * | 1994-01-24 | 1995-11-07 | Triton Technology, Inc. | Interchangeable disposable acoustic for use with an ultrasonic flowmeter, particularly during extracorporeal measurement of blood flow |
CN1125095C (zh) * | 1994-08-15 | 2003-10-22 | 大金工业株式会社 | 含氟马来酸酯,含氟富马酸酯,含氟共聚物及防污加工剂 |
US5969263A (en) * | 1995-04-08 | 1999-10-19 | Schlumberger Industries, S.A. | Ultrasonic fluid counter for attenuating parasitic ultrasonic waves |
DE102006037059A1 (de) * | 2006-08-08 | 2008-02-14 | Siemens Ag | Verfahren zur Luftmassenmessung und Luftmassensensor |
DE102006041530B4 (de) * | 2006-09-05 | 2008-10-30 | Continental Automotive Gmbh | Verfahren zur Luftmassenmessung und Luftmassensensor |
CN101281057B (zh) * | 2007-04-02 | 2011-06-22 | 鸿富锦精密工业(深圳)有限公司 | 气流检测装置 |
DE202008014619U1 (de) * | 2008-11-04 | 2009-12-24 | Junker, Raul | Ultraschall-Durchflussmesser |
EP2351994A4 (fr) * | 2008-12-18 | 2017-12-27 | Panasonic Corporation | Débitmètre à ultrasons |
EP3770561A1 (fr) * | 2019-07-26 | 2021-01-27 | Levitronix GmbH | Dispositif de mesure à ultrasons destiné à la mesure d'un milieu fluide et système de mesure à ultrasons |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3468157A (en) * | 1966-03-03 | 1969-09-23 | Phillips Petroleum Co | Acoustical apparatus for detecting the composition of a gas |
US3817098A (en) * | 1972-08-09 | 1974-06-18 | Saratoga Systems | Axial fluid flow and sound speed |
-
1974
- 1974-08-01 IT IT69440/74A patent/IT1016750B/it active
-
1975
- 1975-05-20 GB GB2162875A patent/GB1476557A/en not_active Expired
- 1975-05-20 US US05/579,285 patent/US3964309A/en not_active Expired - Lifetime
- 1975-06-19 DE DE19752527306 patent/DE2527306B2/de active Granted
- 1975-07-23 JP JP50090012A patent/JPS5912970B2/ja not_active Expired
- 1975-07-29 FR FR7523672A patent/FR2280883A1/fr active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2309837A1 (fr) * | 1975-04-30 | 1976-11-26 | Fiat Spa | Dispositif de mesure d'un debit de gaz par ultrasons |
Also Published As
Publication number | Publication date |
---|---|
DE2527306A1 (de) | 1976-02-19 |
JPS5912970B2 (ja) | 1984-03-27 |
DE2527306C3 (fr) | 1978-08-03 |
FR2280883B1 (fr) | 1980-07-04 |
IT1016750B (it) | 1977-06-20 |
DE2527306B2 (de) | 1977-11-24 |
JPS5137670A (en) | 1976-03-30 |
GB1476557A (en) | 1977-06-16 |
US3964309A (en) | 1976-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2280883A1 (fr) | Appareil pour mesurer le debit d'air dans un conduit | |
BE835329A (fr) | Appareil pour la commande du debit a travers un tube flexible | |
NO146450C (no) | Anordning for forbedring av stroemningsbildet i en gassledning | |
FR2293233A1 (fr) | Dispositif de reglage d'ecoulement pour filtres a air | |
FR2287579A1 (fr) | Appareil d'accrochage et de decrochage d'un objet dans un tuyau | |
BE795867A (fr) | Dispositif pour uniformiser l'ecoulement de l'air dans une turbine a gaz | |
JPS5522188A (en) | Device for measuring flow rate through duct | |
AT362945B (de) | Durchflusszaehler fuer fluessigkeiten | |
AT345957B (de) | Vorrichtung fuer die messung des volumenstroms stroemender medien | |
FR2304012A2 (fr) | Regulateur d'ecoulement pour conduites d'air | |
FR2352284A1 (fr) | Appareil servant a mesurer la quantite de fluide s'ecoulant dans une conduite | |
FR2280884A1 (fr) | Appareil a ultrasons pour mesurer le debit d'air dans un conduit | |
BE826330A (fr) | Dispositif d'ecartement a turbulence | |
BE834521A (fr) | Dispositif pour distribuer de l'air climatise | |
BE831556A (fr) | Appareil de mesure d'ecoulement | |
BE816292A (fr) | Appareil en vue d'evacuer l'air lors de la mesure de l'ecoulement d'un liquide | |
FR2298090A1 (fr) | Appareil de mesure pour determiner le debit d'un milieu en ecoulement | |
FR2400186B1 (fr) | Appareil de mesure du debit d'un fluide | |
FR2463918B1 (fr) | Appareil de mesure du debit d'un fluide | |
FR2306356A1 (fr) | Appareil pour realiser un profil d'ecoulement uniforme | |
ZA796235B (en) | Device for measuring a parameter relating to a fluid flowing in a duct | |
FR2291480A1 (fr) | Dispositif pour corriger automatiquement le decalage d'un appareil de mesure | |
FR2336558A1 (fr) | Appareil de mesure de debit d'air | |
FR2309837A1 (fr) | Dispositif de mesure d'un debit de gaz par ultrasons | |
ATA402975A (de) | Verfahren zur kontinuierlichen herstellung von hochstabilen bitumenemulsionen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |