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JPS57206824A - Flow meter for karman's vortex street - Google Patents

Flow meter for karman's vortex street

Info

Publication number
JPS57206824A
JPS57206824A JP56090813A JP9081381A JPS57206824A JP S57206824 A JPS57206824 A JP S57206824A JP 56090813 A JP56090813 A JP 56090813A JP 9081381 A JP9081381 A JP 9081381A JP S57206824 A JPS57206824 A JP S57206824A
Authority
JP
Japan
Prior art keywords
vibrating plate
vortex street
room
vibrating
magnetic substance
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
JP56090813A
Other languages
Japanese (ja)
Other versions
JPS6127694B2 (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 JP56090813A priority Critical patent/JPS57206824A/en
Priority to GB08217230A priority patent/GB2103795B/en
Priority to US06/388,670 priority patent/US4470310A/en
Priority to DE19823222714 priority patent/DE3222714A1/en
Publication of JPS57206824A publication Critical patent/JPS57206824A/en
Priority to GB08422792A priority patent/GB2144222B/en
Publication of JPS6127694B2 publication Critical patent/JPS6127694B2/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 vibrating plate, which is displaced due to a change in pressure produced at opposite side of a K arm an's vortex street generating substance, consisting of a magnetic substance, and one end is magnetically adsorbed and supported. CONSTITUTION:An approximately triangular room 10 is formed at a center of a housing comprising a non-magnetic substance, pressure introducing holes 8a and 8b are formed in wall surfaces 11a and 11b, and are connected to parts in the proximity of the opposite sides of the K arm an's vortex street generating substance through holes 9a and 9b. A vibrating plate 12, made of a magnetic substance such as iron, nickel, is inserted into the room 10 so that it is positioned in a play at the periphery, one end 13 is adsorbed and held by a permanent magnetic 15 through a bearing 14, and the vibrating plate 12 is rockably positioned with the one end 13 acting as a fulcrum. The end of the room 10 positioned facing and opposite to the bearing 14 keeps airtightness through the air of a shield 22, and a hole is formed in a plate 23 to feed the light through optical fibers 17 and 18 to measure the vibration of the vibrating of the vibrating plate 12. This reduces the spring constant of the vibrating plate and improves a detecting sensitivity.
JP56090813A 1981-06-15 1981-06-15 Flow meter for karman's vortex street Granted JPS57206824A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP56090813A JPS57206824A (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
US06/388,670 US4470310A (en) 1981-06-15 1982-06-15 Karman's vortex 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
GB08422792A GB2144222B (en) 1981-06-15 1984-09-10 Flow metering apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56090813A JPS57206824A (en) 1981-06-15 1981-06-15 Flow meter for karman's vortex street

Publications (2)

Publication Number Publication Date
JPS57206824A true JPS57206824A (en) 1982-12-18
JPS6127694B2 JPS6127694B2 (en) 1986-06-26

Family

ID=14009031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56090813A Granted JPS57206824A (en) 1981-06-15 1981-06-15 Flow meter for karman's vortex street

Country Status (1)

Country Link
JP (1) JPS57206824A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59197825A (en) * 1983-04-26 1984-11-09 Mitsubishi Motors Corp Engine intake air amount detection device
JPS61176413U (en) * 1985-04-23 1986-11-04

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59197825A (en) * 1983-04-26 1984-11-09 Mitsubishi Motors Corp Engine intake air amount detection device
JPS61176413U (en) * 1985-04-23 1986-11-04

Also Published As

Publication number Publication date
JPS6127694B2 (en) 1986-06-26

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