JPS57206825A - Flow meter for karman's vortex street - Google Patents

Flow meter for karman's vortex street

Info

Publication number
JPS57206825A
JPS57206825A JP56090814A JP9081481A JPS57206825A JP S57206825 A JPS57206825 A JP S57206825A JP 56090814 A JP56090814 A JP 56090814A JP 9081481 A JP9081481 A JP 9081481A JP S57206825 A JPS57206825 A JP S57206825A
Authority
JP
Japan
Prior art keywords
room
plate
vibration
vortex street
vibrating
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
Application number
JP56090814A
Other languages
Japanese (ja)
Other versions
JPS6127695B2 (en
Inventor
Michihiko Tsuruoka
Noriomi Miyoshi
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Fuji Electric Manufacturing 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 Fuji Electric Co Ltd, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP56090814A priority Critical patent/JPS57206825A/en
Priority to GB08217230A priority patent/GB2103795B/en
Priority to DE19823222714 priority patent/DE3222714A1/en
Priority to US06/388,670 priority patent/US4470310A/en
Publication of JPS57206825A publication Critical patent/JPS57206825A/en
Priority to GB08422792A priority patent/GB2144222B/en
Publication of JPS6127695B2 publication Critical patent/JPS6127695B2/ja
Granted 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
    • G01F1/325—Means for detecting quantities used as proxy variables for swirl

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

PURPOSE:To improve a detecting sensitivity, by a method wherein a pressure produced at both sides of a K arm an's vortex street generating substance is fed to a room having an isosceles triangular section, and a vibrating plate, having a vibrating fulcrum positioned at a top, is mounted in a room to find a discharge from the number of vibrations thereof. CONSTITUTION:A room 10, having an approximately triangular section, is formed at a center of a housing 7, pressure introducing holes 8a and 8b are provided in wall surfaces 11a and 11b thereof, and are connected to parts in the proximity of both sides of a K arm an's vortex street generating substance through holes 9a and 9b. A vibration plate 12 is inserted into the room 10 so that it is located in a play at the periphery, and one end 13 is rockably secured with a bearing 14 acting as a fulcrum. A plate 23 is installed to the end of the room 10 located facing and opposite to the bearing 14, and light is fed through the hole in the plate 23 through optical fibers 17 and 18 to find a discharge through measurement of the number of vibration of the vibrating plate 12. This causes the vibration plate 12 to be firmly adhered to the wall surface 11a and 11b, which results in bettering interception of the transmission of vibration and improving a detecting sensitivity.
JP56090814A 1981-06-15 1981-06-15 Flow meter for karman's vortex street Granted JPS57206825A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP56090814A JPS57206825A (en) 1981-06-15 1981-06-15 Flow meter for karman's vortex street
GB08217230A GB2103795B (en) 1981-06-15 1982-06-14 Flow metering apparatus
DE19823222714 DE3222714A1 (en) 1981-06-15 1982-06-15 FLOW MEASURING DEVICE ACCORDING TO THE PRINCIPLE OF THE KARMAN'S VESSEL ROAD
US06/388,670 US4470310A (en) 1981-06-15 1982-06-15 Karman's vortex flow metering apparatus
GB08422792A GB2144222B (en) 1981-06-15 1984-09-10 Flow metering apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56090814A JPS57206825A (en) 1981-06-15 1981-06-15 Flow meter for karman's vortex street

Publications (2)

Publication Number Publication Date
JPS57206825A true JPS57206825A (en) 1982-12-18
JPS6127695B2 JPS6127695B2 (en) 1986-06-26

Family

ID=14009059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56090814A Granted JPS57206825A (en) 1981-06-15 1981-06-15 Flow meter for karman's vortex street

Country Status (1)

Country Link
JP (1) JPS57206825A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6147517A (en) * 1984-08-11 1986-03-08 Ohkura Electric Co Ltd Karman vortex flowmeter
JPS61193024A (en) * 1985-02-22 1986-08-27 Fuji Electric Co Ltd Karman vortex flow meter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6147517A (en) * 1984-08-11 1986-03-08 Ohkura Electric Co Ltd Karman vortex flowmeter
JPS61193024A (en) * 1985-02-22 1986-08-27 Fuji Electric Co Ltd Karman vortex flow meter

Also Published As

Publication number Publication date
JPS6127695B2 (en) 1986-06-26

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