FR2259354A1 - - Google Patents

Info

Publication number
FR2259354A1
FR2259354A1 FR7443247A FR7443247A FR2259354A1 FR 2259354 A1 FR2259354 A1 FR 2259354A1 FR 7443247 A FR7443247 A FR 7443247A FR 7443247 A FR7443247 A FR 7443247A FR 2259354 A1 FR2259354 A1 FR 2259354A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7443247A
Other languages
French (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.)
Lucas Electrical Co Ltd
Original Assignee
Lucas Electrical 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 Lucas Electrical Co Ltd filed Critical Lucas Electrical Co Ltd
Publication of FR2259354A1 publication Critical patent/FR2259354A1/fr
Withdrawn legal-status Critical Current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
    • G01F1/66—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
    • 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
    • G01F1/3282—Means for detecting quantities used as proxy variables for swirl for detecting variations in infrasonic, sonic or ultrasonic waves, due to modulation by passing through the swirling fluid
    • 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)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)
FR7443247A 1974-01-30 1974-12-30 Withdrawn FR2259354A1 (enEXAMPLES)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4261/74A GB1482561A (en) 1974-01-30 1974-01-30 Device for and a method of monitoring fluid flow

Publications (1)

Publication Number Publication Date
FR2259354A1 true FR2259354A1 (enEXAMPLES) 1975-08-22

Family

ID=9773782

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7443247A Withdrawn FR2259354A1 (enEXAMPLES) 1974-01-30 1974-12-30

Country Status (5)

Country Link
JP (1) JPS50109763A (enEXAMPLES)
DE (1) DE2453765A1 (enEXAMPLES)
FR (1) FR2259354A1 (enEXAMPLES)
GB (1) GB1482561A (enEXAMPLES)
IT (1) IT1035097B (enEXAMPLES)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022828B1 (en) * 1979-01-11 1985-09-04 J-Tec Associates, Inc. A method of and apparatus for determining the mass flow rate of a fluid stream

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567776A (en) * 1982-06-30 1986-02-04 Kubota Trane Ltd. Fluid flowmeter of Karman vortex detecting type
IT1311771B1 (it) * 1999-02-24 2002-03-19 Giorgio Bergamini Misuratore perfezionato della portata di gas con gli ultrasuoni basato su specchi parabolici.
DE102006041531B4 (de) * 2006-09-05 2008-10-02 Continental Automotive Gmbh Schaltungsanordnung zum bidirektionalen Betrieb von an den Enden einer Messstrecke angeordneten Schallwandlern
CN111351958B (zh) * 2018-12-21 2021-11-02 上海华虹计通智能系统股份有限公司 时延检测方法及装置、流体速度测量方法及系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022828B1 (en) * 1979-01-11 1985-09-04 J-Tec Associates, Inc. A method of and apparatus for determining the mass flow rate of a fluid stream

Also Published As

Publication number Publication date
DE2453765A1 (de) 1975-08-07
IT1035097B (it) 1979-10-20
GB1482561A (en) 1977-08-10
JPS50109763A (enEXAMPLES) 1975-08-29

Similar Documents

Publication Publication Date Title
FR2257786A1 (enEXAMPLES)
FR2257238B1 (enEXAMPLES)
FR2259354A1 (enEXAMPLES)
FR2259290B1 (enEXAMPLES)
FI752973A7 (enEXAMPLES)
AU7459474A (enEXAMPLES)
FR2260057A1 (enEXAMPLES)
CS177966B1 (enEXAMPLES)
FI228174A7 (enEXAMPLES)
FI155074A7 (enEXAMPLES)
AU7465674A (enEXAMPLES)
CS171471B1 (enEXAMPLES)
CH578995A5 (enEXAMPLES)
BG20475A1 (enEXAMPLES)
DD115938A1 (enEXAMPLES)
DD113978A1 (enEXAMPLES)
DD111642A5 (enEXAMPLES)
DD110558A1 (enEXAMPLES)
DD110005A1 (enEXAMPLES)
DD109337A1 (enEXAMPLES)
DD108882A1 (enEXAMPLES)
DD116464A5 (enEXAMPLES)
DD119244A5 (enEXAMPLES)
CH592609A5 (enEXAMPLES)
DD125775A5 (enEXAMPLES)

Legal Events

Date Code Title Description
ST Notification of lapse