JPS5523497A - Karman vortex flow meter - Google Patents

Karman vortex flow meter

Info

Publication number
JPS5523497A
JPS5523497A JP9351479A JP9351479A JPS5523497A JP S5523497 A JPS5523497 A JP S5523497A JP 9351479 A JP9351479 A JP 9351479A JP 9351479 A JP9351479 A JP 9351479A JP S5523497 A JPS5523497 A JP S5523497A
Authority
JP
Japan
Prior art keywords
generating element
vortex generating
karman vortex
rod
vortex
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.)
Pending
Application number
JP9351479A
Other languages
Japanese (ja)
Inventor
Kiichi Tsuchiya
Hideo Numata
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.)
Oval Engineering Co Ltd
Original Assignee
Oval Engineering 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 Oval Engineering Co Ltd filed Critical Oval Engineering Co Ltd
Priority to JP9351479A priority Critical patent/JPS5523497A/en
Publication of JPS5523497A publication Critical patent/JPS5523497A/en
Pending 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
    • G01F1/3209—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 using Karman vortices
    • G01F1/3218—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 using Karman vortices bluff body design

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To improve instrumentation precision by increasing the resolution of a Karman vortex street by controlling the generation state of a vortex by arranging not less than two Karman vortex generating element plates at a desired interval behind a Karman vortex generating element rod. CONSTITUTION:Inside flow-meter main body 2 equipped in duct 1, triangular vortex generating element rod 3 is provided and not less than two plate-shaped vortex generating element boards 5 of the same width as rod 3 are independently arranged at a fixed interval behind it. This constitution generates an excellent Karman vortex under broad measurement conditions where the flow rate and flow velocity of a fluid are changeable. As a result, the resolution is improved and the shape of vortex generating element rod 3 and the number and arrangement state of vortex generating element plates 5 are adequately set within the range of more than two in number so as to realize accurate instrumentation; and the structure is simple and various fluids can be measured. Further, a closed pipe and open channel can be used for the duct.
JP9351479A 1979-07-23 1979-07-23 Karman vortex flow meter Pending JPS5523497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9351479A JPS5523497A (en) 1979-07-23 1979-07-23 Karman vortex flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9351479A JPS5523497A (en) 1979-07-23 1979-07-23 Karman vortex flow meter

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP13902074A Division JPS5165969A (en) 1974-12-04 1974-12-04 KARUMANUZURYURYOKEI

Publications (1)

Publication Number Publication Date
JPS5523497A true JPS5523497A (en) 1980-02-19

Family

ID=14084445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9351479A Pending JPS5523497A (en) 1979-07-23 1979-07-23 Karman vortex flow meter

Country Status (1)

Country Link
JP (1) JPS5523497A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478087A (en) * 1982-09-20 1984-10-23 Mitsubishi Denki Kabushiki Kaisha Karman's vortex street flow meter
US4485679A (en) * 1981-12-10 1984-12-04 Itt Industries, Inc. Fluid flowmeter
JPS62214320A (en) * 1986-03-16 1987-09-21 Oval Eng Co Ltd Vortex flowmeter
US4977781A (en) * 1986-03-15 1990-12-18 Oval Engineering Co., Ltd. Vortex flow meter
WO2013052728A1 (en) * 2011-10-05 2013-04-11 Saudi Arabian Oil Company Pulsating flow meter
CN105953082A (en) * 2016-06-15 2016-09-21 浙江师范大学 Self-powered oil and gas pipeline monitoring device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55469A (en) * 1979-03-19 1980-01-05 Oval Eng Co Ltd Carman vortex generator for carman vortex flow meter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55469A (en) * 1979-03-19 1980-01-05 Oval Eng Co Ltd Carman vortex generator for carman vortex flow meter

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485679A (en) * 1981-12-10 1984-12-04 Itt Industries, Inc. Fluid flowmeter
US4478087A (en) * 1982-09-20 1984-10-23 Mitsubishi Denki Kabushiki Kaisha Karman's vortex street flow meter
US4977781A (en) * 1986-03-15 1990-12-18 Oval Engineering Co., Ltd. Vortex flow meter
JPS62214320A (en) * 1986-03-16 1987-09-21 Oval Eng Co Ltd Vortex flowmeter
WO2013052728A1 (en) * 2011-10-05 2013-04-11 Saudi Arabian Oil Company Pulsating flow meter
US9032815B2 (en) 2011-10-05 2015-05-19 Saudi Arabian Oil Company Pulsating flow meter having a bluff body and an orifice plate to produce a pulsating flow
EP3264050A1 (en) * 2011-10-05 2018-01-03 Saudi Arabian Oil Company Pulsating flow meter
CN105953082A (en) * 2016-06-15 2016-09-21 浙江师范大学 Self-powered oil and gas pipeline monitoring device

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