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JPS56616A - Flow rate detecting unit - Google Patents

Flow rate detecting unit

Info

Publication number
JPS56616A
JPS56616A JP2109779A JP2109779A JPS56616A JP S56616 A JPS56616 A JP S56616A JP 2109779 A JP2109779 A JP 2109779A JP 2109779 A JP2109779 A JP 2109779A JP S56616 A JPS56616 A JP S56616A
Authority
JP
Japan
Prior art keywords
flow rate
detecting unit
unit
value
output
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
JP2109779A
Other languages
Japanese (ja)
Inventor
Takeo Sasaki
Yoshiaki Sugano
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2109779A priority Critical patent/JPS56616A/en
Publication of JPS56616A publication Critical patent/JPS56616A/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
    • G01F1/325—Means for detecting quantities used as proxy variables for swirl
    • G01F1/3287—Means for detecting quantities used as proxy variables for swirl circuits therefor

Landscapes

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

Abstract

PURPOSE:To operate a correct flow rate, by storing data corresponding to the flow rate to the freqency in a correcting unit and by correcting a pulse constant, in the flow rate detecting unit which detects the flow rate value on a basis of Kalman eddy. CONSTITUTION:Correcting unit 44 is constituted by, for example, a digital computer. Correcting unit 44 takes in the output pulse train of eddy detecting unit 3 through the first f-v converter 42 and A-D converter 43 as a digital input corresponding to the frequency of the pulse train. Consequently, correction unit 44 corrects the output of frequency divider 41 by the pulse width on a basis of the correction output, which is stored correspondingly to each value of the taken-in digital value, according to the characteristics of the flow rate to the frequency of vortex generated by vortex generator 21. By this constitution, a correct flow rate of the fluid passing through external box 2 can be detected.
JP2109779A 1979-02-22 1979-02-22 Flow rate detecting unit Pending JPS56616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2109779A JPS56616A (en) 1979-02-22 1979-02-22 Flow rate detecting unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2109779A JPS56616A (en) 1979-02-22 1979-02-22 Flow rate detecting unit

Publications (1)

Publication Number Publication Date
JPS56616A true JPS56616A (en) 1981-01-07

Family

ID=12045360

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2109779A Pending JPS56616A (en) 1979-02-22 1979-02-22 Flow rate detecting unit

Country Status (1)

Country Link
JP (1) JPS56616A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS608442U (en) * 1983-06-29 1985-01-21 日野自動車株式会社 Insulation plate on the bottom of the cylinder head
JPS60180658A (en) * 1984-02-27 1985-09-14 Daido Steel Co Ltd Production of ceramic-metal composite body
JPS60216966A (en) * 1984-04-10 1985-10-30 Daido Steel Co Ltd Composite ceramic-iron-base alloy body
JPS61142155U (en) * 1985-02-25 1986-09-02
JPS6217619A (en) * 1985-07-16 1987-01-26 Toyota Motor Corp Apparatus for processing output signal of karman vortex sensor
US4819490A (en) * 1985-07-16 1989-04-11 Toyota Jidosha Kabushiki Kaisha Karman vortex sensor type flow rate measuring system
JPH0344512A (en) * 1989-07-12 1991-02-26 Tokyo Gas Co Ltd fluidic flow meter
JPH0395420A (en) * 1989-09-07 1991-04-19 Tokyo Gas Co Ltd Correcting apparatus of instrumental error of flowmeter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS608442U (en) * 1983-06-29 1985-01-21 日野自動車株式会社 Insulation plate on the bottom of the cylinder head
JPH0128292Y2 (en) * 1983-06-29 1989-08-29
JPS60180658A (en) * 1984-02-27 1985-09-14 Daido Steel Co Ltd Production of ceramic-metal composite body
JPH0424142B2 (en) * 1984-02-27 1992-04-24 Daido Steel Co Ltd
JPS60216966A (en) * 1984-04-10 1985-10-30 Daido Steel Co Ltd Composite ceramic-iron-base alloy body
JPS61142155U (en) * 1985-02-25 1986-09-02
JPS6217619A (en) * 1985-07-16 1987-01-26 Toyota Motor Corp Apparatus for processing output signal of karman vortex sensor
US4819490A (en) * 1985-07-16 1989-04-11 Toyota Jidosha Kabushiki Kaisha Karman vortex sensor type flow rate measuring system
JPH0344512A (en) * 1989-07-12 1991-02-26 Tokyo Gas Co Ltd fluidic flow meter
JPH0395420A (en) * 1989-09-07 1991-04-19 Tokyo Gas Co Ltd Correcting apparatus of instrumental error of flowmeter

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