JPS55101013A - Fluid measuring instrument - Google Patents

Fluid measuring instrument

Info

Publication number
JPS55101013A
JPS55101013A JP857979A JP857979A JPS55101013A JP S55101013 A JPS55101013 A JP S55101013A JP 857979 A JP857979 A JP 857979A JP 857979 A JP857979 A JP 857979A JP S55101013 A JPS55101013 A JP S55101013A
Authority
JP
Japan
Prior art keywords
vortex generating
section
generating body
fluid
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.)
Granted
Application number
JP857979A
Other languages
Japanese (ja)
Other versions
JPS5921483B2 (en
Inventor
Ichizo Ito
Toshio Aga
Tetsuo Ando
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP54008579A priority Critical patent/JPS5921483B2/en
Publication of JPS55101013A publication Critical patent/JPS55101013A/en
Publication of JPS5921483B2 publication Critical patent/JPS5921483B2/en
Expired 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
    • G01F1/3259—Means for detecting quantities used as proxy variables for swirl for detecting fluid pressure oscillations
    • G01F1/3266—Means for detecting quantities used as proxy variables for swirl for detecting fluid pressure oscillations by sensing mechanical vibrations

Landscapes

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

Abstract

PURPOSE:To obtain a fluid measuring instrument which can measure the direction of a flow and its rate or quantity by forming a Karman vortex generating body with its section trapezoid. CONSTITUTION:To conduit 1 where a fluid to be mesured flows, both the terminals of vortex generating body 2 with its section trapezoid are fixed and in the concavity of top part 22, force detection sensor 4 with semidiscoid electrodes 42-45 fitted to piezoelectric body 41 is arranged and then sealed by sealing body 5 made with glass. Once the measured fluid flows through the conduit, alternating force acts upon vortex generating body 2 by a Karman vortex to generate an electric signal equivalent to variation in this stress, so a vortex generating frequency can be obtained by detecting the number of times of this variation. As this time, the R-directional section of vortex generating body 2 differs from its L-directional section, so that the vortex generating frequencies will be different even at the same frequency. For the purpose, the output of detector 6 is compared with that of a converter which has vortex generating frequency/electric signal converting characteristics in the middle between directions R and L to make it possible to measure the direction of the flow and its rate or quantity.
JP54008579A 1979-01-26 1979-01-26 fluid measuring device Expired JPS5921483B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54008579A JPS5921483B2 (en) 1979-01-26 1979-01-26 fluid measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54008579A JPS5921483B2 (en) 1979-01-26 1979-01-26 fluid measuring device

Publications (2)

Publication Number Publication Date
JPS55101013A true JPS55101013A (en) 1980-08-01
JPS5921483B2 JPS5921483B2 (en) 1984-05-21

Family

ID=11696920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54008579A Expired JPS5921483B2 (en) 1979-01-26 1979-01-26 fluid measuring device

Country Status (1)

Country Link
JP (1) JPS5921483B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100732116B1 (en) 2005-10-26 2007-06-25 요업기술원 Vortex flowmeter
KR100782963B1 (en) 2006-06-26 2007-12-07 주식회사 메타켐 An apparatus for sensing the flow of fluid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0238080U (en) * 1988-09-01 1990-03-13

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100732116B1 (en) 2005-10-26 2007-06-25 요업기술원 Vortex flowmeter
KR100782963B1 (en) 2006-06-26 2007-12-07 주식회사 메타켐 An apparatus for sensing the flow of fluid

Also Published As

Publication number Publication date
JPS5921483B2 (en) 1984-05-21

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