JPS57114815A - Sound absorbing material adding device for flow meter - Google Patents

Sound absorbing material adding device for flow meter

Info

Publication number
JPS57114815A
JPS57114815A JP56074701A JP7470181A JPS57114815A JP S57114815 A JPS57114815 A JP S57114815A JP 56074701 A JP56074701 A JP 56074701A JP 7470181 A JP7470181 A JP 7470181A JP S57114815 A JPS57114815 A JP S57114815A
Authority
JP
Japan
Prior art keywords
sound absorbing
flow meter
absorbing material
wall
ultrasonic
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
JP56074701A
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 JP56074701A priority Critical patent/JPS57114815A/en
Publication of JPS57114815A publication Critical patent/JPS57114815A/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

Landscapes

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

Abstract

PURPOSE:To realize the high efficiency of working and to increase the accuracy of measurement with formation of an even adhering layer or sound absorbing layer, by using a both-side adhesive for the attachment of a sound absorbing material to the inner wall of a pipe of a flow meter main body through which a fluid to be measured passes. CONSTITUTION:A sound absorbing material such as a nonwoven fabric, is stuck to the inner wall of a flow meter main body through which a fluid to be measured passes via a both-side adhesive. Thus the occurrence of a standing wave which is caused by the reception of ultrasonic waves can be prevented. For instance, a vortex generating mechanism 3 is provided within a flow path comprising an enlarged opening part 1, a throttle part 9, a straight pipe part 2, etc. Then an ultrasonic vortex detecting mechanism 5 consisting of an ultrasonic transmitter 6 and an ultrasonic receiver 7 is attached at the downstream part of the mechanism 3. In such a way, a flow meter is obtained. A sound absorbing material 11 such as a nonwoven fabric, which is porous and has a number of cavities (continuous bubbles) distributed with large surface density is stuck to the inner wall of the flow meter via a both-sided adhesive.
JP56074701A 1981-05-18 1981-05-18 Sound absorbing material adding device for flow meter Pending JPS57114815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56074701A JPS57114815A (en) 1981-05-18 1981-05-18 Sound absorbing material adding device for flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56074701A JPS57114815A (en) 1981-05-18 1981-05-18 Sound absorbing material adding device for 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
JPS57114815A true JPS57114815A (en) 1982-07-16

Family

ID=13554787

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56074701A Pending JPS57114815A (en) 1981-05-18 1981-05-18 Sound absorbing material adding device for flow meter

Country Status (1)

Country Link
JP (1) JPS57114815A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100436620B1 (en) * 2002-01-22 2004-06-22 주식회사 서진인스텍 Cavity flowmeter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100436620B1 (en) * 2002-01-22 2004-06-22 주식회사 서진인스텍 Cavity flowmeter

Similar Documents

Publication Publication Date Title
SE7910386L (en) ULTRASONIC FLOW METERS
SE7603680L (en) FLUID FLOW SATURITY SYSTEM FOR TUBE
ATE27359T1 (en) TRANSDUCER FOR DETERMINING THE FLOW RATE OF A FLOWING LIQUID.
DE3768428D1 (en) DEVICE FOR DETERMINING THE FLOW RATE OF A MEDIUM IN A CYLINDRICAL TUBE.
JPS5513873A (en) Vortex flowmeter
JPS57147063A (en) Ultrasonic doppler flow meter
JPS57114815A (en) Sound absorbing material adding device for flow meter
JPH0221528B2 (en)
JPS55113974A (en) Ultrasonic current and flow meter utilizing doppler's shift
JPS54121780A (en) Measuring apparatus of velocity of flow
JPS54121769A (en) Ultrasonic flowmeter
JPS56138216A (en) Flow rate measuring instrument
JPS55134349A (en) Sound wave microscope
JPS5250784A (en) Ultrasonic type flow and density meter
JPS641957A (en) Measurement of thickness of scale in pipe
JPS55101815A (en) Vortex flowmeter
JPS6478114A (en) Vortex flowmeter
JPS5479068A (en) Measuring apparatus of velocity and rate of flow
JPS5470078A (en) Flowmeter
JPS5910576Y2 (en) Karman vortex flowmeter
JPS5245983A (en) System for measuring flow velocity of multiple layers
JPS5621006A (en) Flatness detector
FR2377038A1 (en) Ultrasonic measurement of gas absorbed in liquids - using ultrasonic transponder in liq. stream transmitting pulsed bursts and detecting back-scattered waves
JPS54125061A (en) Ultrasonic type instrument
JPS5819450Y2 (en) Karman vortex flowmeter