JPS57114814A - Attachment device of ultrasonic vortex detecting mechanism for vortex flow meter - Google Patents

Attachment device of ultrasonic vortex detecting mechanism for vortex flow meter

Info

Publication number
JPS57114814A
JPS57114814A JP56074700A JP7470081A JPS57114814A JP S57114814 A JPS57114814 A JP S57114814A JP 56074700 A JP56074700 A JP 56074700A JP 7470081 A JP7470081 A JP 7470081A JP S57114814 A JPS57114814 A JP S57114814A
Authority
JP
Japan
Prior art keywords
vortex
ultrasonic
arm
flow
receiver
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
JP56074700A
Other languages
Japanese (ja)
Inventor
Toei Okuda
Teruki Fukami
Masahiro Kanayama
Hiroshi Yamamoto
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 JP56074700A priority Critical patent/JPS57114814A/en
Publication of JPS57114814A publication Critical patent/JPS57114814A/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

Landscapes

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

Abstract

PURPOSE:To detect the K arm an vortex with no error, by attaching a pair of an ultrasonic transmitter and an ultrasonic receiver to an attachment cylinder provided at the position opposite to the pipeline of the flow meter main body with a vibration-resistant structure. CONSTITUTION:A fluid to be measured is flowed into an enlarged opening part 1 of the main body (a), and the flow is controlled by a flow straightening device 11. Then the flow is throttled at a throttle part 9 having an arc-shaped throttle face 10, and the control of flow is accelerated to cause a K arm an vortex street through a vortex producing mechanism 3. The K arm an vortex caused within a flow path produces an ultrasonic wave by an ultrasonic transmitter 6 of an ultrasonic vortex detection measuring mechanism 5. This ultrasonic wave is transmitted to an ultrasonic receiver 7 provided opposite to the opposite pipe walls 8 and modulated by the K arm an vortex while propagating in the fluid to be measured. This modulated signal is detected by the receiver 7 as a vortex generation signal which is obtained by the K arm an vortex.
JP56074700A 1981-05-18 1981-05-18 Attachment device of ultrasonic vortex detecting mechanism for vortex flow meter Pending JPS57114814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56074700A JPS57114814A (en) 1981-05-18 1981-05-18 Attachment device of ultrasonic vortex detecting mechanism for vortex flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56074700A JPS57114814A (en) 1981-05-18 1981-05-18 Attachment device of ultrasonic vortex detecting mechanism for vortex flow meter

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP53086686A Division JPS5819970B2 (en) 1978-07-18 1978-07-18 vortex flow meter

Publications (1)

Publication Number Publication Date
JPS57114814A true JPS57114814A (en) 1982-07-16

Family

ID=13554758

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56074700A Pending JPS57114814A (en) 1981-05-18 1981-05-18 Attachment device of ultrasonic vortex detecting mechanism for vortex flow meter

Country Status (1)

Country Link
JP (1) JPS57114814A (en)

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