JPS57100311A - Method for correcting instrument error of vortex flowmeter - Google Patents

Method for correcting instrument error of vortex flowmeter

Info

Publication number
JPS57100311A
JPS57100311A JP55175885A JP17588580A JPS57100311A JP S57100311 A JPS57100311 A JP S57100311A JP 55175885 A JP55175885 A JP 55175885A JP 17588580 A JP17588580 A JP 17588580A JP S57100311 A JPS57100311 A JP S57100311A
Authority
JP
Japan
Prior art keywords
holes
instrumental
vortex flowmeter
instrument error
pipeline
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
JP55175885A
Other languages
Japanese (ja)
Inventor
Yutaka Ogawa
Katsuo Misumi
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 Kiki Kogyo KK
Oval Engineering Co Ltd
Original Assignee
Oval Kiki Kogyo KK
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 Kiki Kogyo KK, Oval Engineering Co Ltd filed Critical Oval Kiki Kogyo KK
Priority to JP55175885A priority Critical patent/JPS57100311A/en
Publication of JPS57100311A publication Critical patent/JPS57100311A/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 obtain a Karman vortex steet flowmeter permitting easy correction of instrumental errors by providing through-holes on the side face of a vortex generating body provided in a pipeline and changing the number of the through- holes in accordance with instrumental error. CONSTITUTION:A vortex generating body 2 having through-holes 3 is provided in a pipeline in which fluid flows, and the vortexes generated by the body 2 are detected, whereby flow rate is measured. The through-holes 3 are provided on the side face of the body 2, and an instrumental error E% changes with respect to a flow rate theta as shown in the figure when 3 pieces of the through- holes are provided, when 2 pieces are provided, when 1 piece is provided and when no through-holes are provided, and therefore, the correction of instrumental errors is accomplished easily by changing the number of the through-holes of the body 2 in accordance with the instrumental errors.
JP55175885A 1980-12-15 1980-12-15 Method for correcting instrument error of vortex flowmeter Pending JPS57100311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55175885A JPS57100311A (en) 1980-12-15 1980-12-15 Method for correcting instrument error of vortex flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55175885A JPS57100311A (en) 1980-12-15 1980-12-15 Method for correcting instrument error of vortex flowmeter

Publications (1)

Publication Number Publication Date
JPS57100311A true JPS57100311A (en) 1982-06-22

Family

ID=16003912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55175885A Pending JPS57100311A (en) 1980-12-15 1980-12-15 Method for correcting instrument error of vortex flowmeter

Country Status (1)

Country Link
JP (1) JPS57100311A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115342889A (en) * 2022-10-19 2022-11-15 陕西省计量科学研究院 Method for correcting meter coefficient of flowmeter under water-air medium and flowmeter
CN115342888A (en) * 2022-10-18 2022-11-15 陕西省计量科学研究院 Method for correcting meter coefficient of flowmeter under water-steam medium and flowmeter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115342888A (en) * 2022-10-18 2022-11-15 陕西省计量科学研究院 Method for correcting meter coefficient of flowmeter under water-steam medium and flowmeter
CN115342888B (en) * 2022-10-18 2023-01-31 陕西省计量科学研究院 Method for correcting meter coefficient of flowmeter under water-steam medium and flowmeter
CN115342889A (en) * 2022-10-19 2022-11-15 陕西省计量科学研究院 Method for correcting meter coefficient of flowmeter under water-air medium and flowmeter
CN115342889B (en) * 2022-10-19 2023-01-31 陕西省计量科学研究院 Method for correcting meter coefficient of flowmeter under water-air medium and flowmeter

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