GB1535225A - Apparatus for measuring flowrate of fluid in a conduit - Google Patents

Apparatus for measuring flowrate of fluid in a conduit

Info

Publication number
GB1535225A
GB1535225A GB10132/76A GB1013276A GB1535225A GB 1535225 A GB1535225 A GB 1535225A GB 10132/76 A GB10132/76 A GB 10132/76A GB 1013276 A GB1013276 A GB 1013276A GB 1535225 A GB1535225 A GB 1535225A
Authority
GB
United Kingdom
Prior art keywords
channels
vortex
diaphragm
pressure variations
march
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.)
Expired
Application number
GB10132/76A
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.)
Neptune Eastech Inc
Original Assignee
Neptune Eastech Inc
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 Neptune Eastech Inc filed Critical Neptune Eastech Inc
Publication of GB1535225A publication Critical patent/GB1535225A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
    • G01L9/0016—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a diaphragm
    • 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
    • G01F1/3259—Means for detecting quantities used as proxy variables for swirl for detecting fluid pressure oscillations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
    • G01L23/14—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by electromagnetic elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

1535225 Pressure sensor: vortex street flowmeter NEPTUNE EASTECH Inc 12 March 1976 [13 March 1975] 10132/76 Headings G1G and G1N A pressure sensor assembly for use in a vortex street flowmeter consists in a cylindrical housing 19 in which a pair of channels 25, 27 extend between ports at one end of the housing and respective opposite surfaces of a ferromagnetic diaphragm 21 the consequent vibration of which is sensed by a magnetic pick-up in recess 55 of a cap 49. The sensed pressure variations are due to vortex shedding from a bluff body 11 having orifices 41, 43 in its vortex-shedding surfaces 15, 17 in registration with cuts-out 29, 31 communicating with the channels 25, 27. An aperture 33 communicates pressure variations in the channel 25 via chamber 47 to the outer surface of the diaphragm. The orfices 41, 43 may be sealed with flexible diaphragms and another fluid than the one in which the bluff body is immersed may be provided in the channels 25, 27 to communicate the pressure variations to the diaphragm.
GB10132/76A 1975-03-13 1976-03-12 Apparatus for measuring flowrate of fluid in a conduit Expired GB1535225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55815575A 1975-03-13 1975-03-13

Publications (1)

Publication Number Publication Date
GB1535225A true GB1535225A (en) 1978-12-13

Family

ID=24228438

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10132/76A Expired GB1535225A (en) 1975-03-13 1976-03-12 Apparatus for measuring flowrate of fluid in a conduit

Country Status (4)

Country Link
JP (1) JPS51114157A (en)
CA (1) CA1051683A (en)
DE (1) DE2610397A1 (en)
GB (1) GB1535225A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102721448A (en) * 2012-05-31 2012-10-10 郑州光力科技股份有限公司 Anti-smudginess inserted vortex shedding flowmeter

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2103795B (en) * 1981-06-15 1986-03-19 Fuji Electric Co Ltd Flow metering apparatus
JPH0690061B2 (en) * 1989-08-21 1994-11-14 三菱自動車工業株式会社 Vortex flowmeter
JP5316744B2 (en) 2008-02-28 2013-10-16 良信 田中 Golf putter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5233976B2 (en) * 1971-08-24 1977-08-31
JPS5240589B2 (en) * 1972-03-17 1977-10-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102721448A (en) * 2012-05-31 2012-10-10 郑州光力科技股份有限公司 Anti-smudginess inserted vortex shedding flowmeter

Also Published As

Publication number Publication date
DE2610397A1 (en) 1976-09-30
CA1051683A (en) 1979-04-03
JPS51114157A (en) 1976-10-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee