JPS54153661A - Measuring method of velocity and rate of flow - Google Patents

Measuring method of velocity and rate of flow

Info

Publication number
JPS54153661A
JPS54153661A JP6190478A JP6190478A JPS54153661A JP S54153661 A JPS54153661 A JP S54153661A JP 6190478 A JP6190478 A JP 6190478A JP 6190478 A JP6190478 A JP 6190478A JP S54153661 A JPS54153661 A JP S54153661A
Authority
JP
Japan
Prior art keywords
receivers
flow
signals
velocities
oscillators
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
JP6190478A
Other languages
Japanese (ja)
Inventor
Yoshio Kurita
Noritake Shibata
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 JP6190478A priority Critical patent/JPS54153661A/en
Publication of JPS54153661A publication Critical patent/JPS54153661A/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
    • G01F1/3282—Means for detecting quantities used as proxy variables for swirl for detecting variations in infrasonic, sonic or ultrasonic waves, due to modulation by passing through the swirling fluid

Abstract

PURPOSE:To enable measurement of flow velocities to be performed without receiving the effect of the distribution of the velocities of flow in pipe by forming two or more pairs of ultrasonic wave propagation routes on the upstream and downstream sides and detecting the flow velocities in plural places in the pipe. CONSTITUTION:Ultrasonic wave transmitters 21, 23, 25 and receivers 31, 33, 35 in opposition respectively thereto are provided on the upstream side of pipeline and oscillators 22, 24, 26 and receivers 32, 34, 36 are provided spacially at a fixed distance on the downstream side, whereby propagation routes are respectively formed. When these oscillators are driven by an oscillator 4, the respective receivers detect the noise of fluid. Phase detectores 71 thru 73 are inputted with the signals from the receivers of the upstream side and the signals from the receivers on the downstream side and mdoulate the phase differences of both signals. The outputs Y1 thereof are inputted to a correlator 6 by a switch 8. In a circuit 9, the peaks are detected and are operated in a circuit 10, whereby the flow velocity V1 is obtained. Next, the switch 8 is changed over and the flow velocities V2, V3 for the outputs Y2, Y3 are obtained and these are operated 10 to obtain a mean flow velocity Vm.
JP6190478A 1978-05-24 1978-05-24 Measuring method of velocity and rate of flow Pending JPS54153661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6190478A JPS54153661A (en) 1978-05-24 1978-05-24 Measuring method of velocity and rate of flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6190478A JPS54153661A (en) 1978-05-24 1978-05-24 Measuring method of velocity and rate of flow

Publications (1)

Publication Number Publication Date
JPS54153661A true JPS54153661A (en) 1979-12-04

Family

ID=13184594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6190478A Pending JPS54153661A (en) 1978-05-24 1978-05-24 Measuring method of velocity and rate of flow

Country Status (1)

Country Link
JP (1) JPS54153661A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6286515U (en) * 1985-11-19 1987-06-02
EP0800061A2 (en) * 1996-04-02 1997-10-08 Yokogawa Electric Corporation Vortex flowmeter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6286515U (en) * 1985-11-19 1987-06-02
EP0800061A2 (en) * 1996-04-02 1997-10-08 Yokogawa Electric Corporation Vortex flowmeter
EP0800061A3 (en) * 1996-04-02 1998-01-28 Yokogawa Electric Corporation Vortex flowmeter

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