KR890016365A - 와류량계 - Google Patents

와류량계 Download PDF

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Publication number
KR890016365A
KR890016365A KR1019890003161A KR890003161A KR890016365A KR 890016365 A KR890016365 A KR 890016365A KR 1019890003161 A KR1019890003161 A KR 1019890003161A KR 890003161 A KR890003161 A KR 890003161A KR 890016365 A KR890016365 A KR 890016365A
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KR
South Korea
Prior art keywords
output
circuit
detecting means
signal detecting
comparator
Prior art date
Application number
KR1019890003161A
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English (en)
Other versions
KR920002873B1 (ko
Inventor
가쓰히꼬 오오마에
Original Assignee
시끼 모리야
미쓰비시전기주식회사
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 시끼 모리야, 미쓰비시전기주식회사 filed Critical 시끼 모리야
Publication of KR890016365A publication Critical patent/KR890016365A/ko
Application granted granted Critical
Publication of KR920002873B1 publication Critical patent/KR920002873B1/ko

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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
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • 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
    • 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

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

내용 없음

Description

와류량계
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 이 발명의 한 실시예에 의한 와류량계의 블록도. 제2도는 통상 실시예에 있어서 파형정형회로의 상세한 구성을 주체로 하여 표시한 블록도.

Claims (1)

  1. 피측정유체의 유량에 응동되어 생기는 와신호를 검출하는 와신호검출수단과, 이 와신호검출수단의 필터를 통한 출력을 받아서 피크전압을 유지하는 피크홀드회로, 상기 와신호검출수단의 출력을 받아서 보톰전압을 유지하는 보톰홀드회로, 상기 와신호검출수단의 출력의 전압레벨을 (+)측으로 시프트시키는 제1의 레벨시프트회로, 상기 와신호검출수단의 출력의 전압레벨을 (-)측으로 시프트시키는 제2의 레벨세프트회로, 상기 피크홀드회로의 출력과 상기 제1의 레벨시프트회로의 출력을 비교하는 제1의 비교기, 상기 보톰홀드회로의 출력과 상기 제2의레벨시프트회로의 출력을 비교하는 제2의 비교기, 상기 제1의 비교기 및 제2의 비교기의 출력을 받아 펄스를 출력시키는 플립플롭회로, 이 플립플롭회로의 출력을 받아 상기 피크홀드회로의 피크치를 리세트시키는 피크치리세트회로, 상기 플립플롭회로의 출력을 받아 상기 보톰홀드회로의 보톰치를 리세트시키는 보톰처리세트회로에 의하여구성되는 파형정형회로 등을 구비하여서 된 와류량계.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890003161A 1988-04-19 1989-03-15 와류량계 KR920002873B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP?63-97869 1988-04-19
JP63097869A JPH0654245B2 (ja) 1988-04-19 1988-04-19 渦流量計
JP88-97869 1988-04-19

Publications (2)

Publication Number Publication Date
KR890016365A true KR890016365A (ko) 1989-11-29
KR920002873B1 KR920002873B1 (ko) 1992-04-06

Family

ID=14203750

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890003161A KR920002873B1 (ko) 1988-04-19 1989-03-15 와류량계

Country Status (4)

Country Link
US (2) US4966040A (ko)
JP (1) JPH0654245B2 (ko)
KR (1) KR920002873B1 (ko)
AU (1) AU602629B2 (ko)

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JPH02126771A (ja) * 1988-11-07 1990-05-15 Aisin Seiki Co Ltd 画像情報の２値化方法および装置
JP2724006B2 (ja) * 1989-11-16 1998-03-09 オリンパス光学工業株式会社 ２値化回路
JP2928651B2 (ja) * 1991-03-19 1999-08-03 株式会社日立製作所 通信機能を備えた制御装置
US5435188A (en) * 1992-03-09 1995-07-25 Lew; Hyok S. Electronic filter for flowmeters with compound controls
US5309771A (en) * 1992-03-09 1994-05-10 Lew Yon S Method for processing signals in vortex flowmeters
US5351556A (en) * 1992-03-09 1994-10-04 Lew Yon S Compound electronic filter for vortex flowmeters
US5675091A (en) * 1992-03-09 1997-10-07 Lew; Hyok S. Step-wise tracking electronic filter with offset up and down transition
US5200656A (en) * 1992-03-23 1993-04-06 Trw Inc. Circuit for measuring the difference between two successive periods in a waveform
WO1995011425A2 (en) * 1992-09-30 1995-04-27 Rosemount Inc. Vortex flowmeter electronics
US5347873A (en) * 1993-04-09 1994-09-20 Badger Meter, Inc. Double wing vortex flowmeter with strouhal number corrector
FR2706608B1 (fr) * 1993-06-11 1995-08-18 Schlumberger Ind Sa Système de mesure de signaux d'un oscillateur fluidique.
RU2148797C1 (ru) * 1993-10-18 2000-05-10 Роузмаунт Инк. Электронная схема вихревого расходомера
US5576497A (en) * 1995-05-09 1996-11-19 The Foxboro Company Adaptive filtering for a vortex flowmeter
US5544524A (en) * 1995-07-20 1996-08-13 The United States Of America As Represented By The Secretary Of The Navy Apparatus and method for predicting flow characteristics
US5736649A (en) * 1995-08-23 1998-04-07 Tokico Ltd. Vortex flowmeter
JP2933016B2 (ja) * 1996-04-02 1999-08-09 横河電機株式会社 渦流量計
US5728947A (en) * 1996-06-12 1998-03-17 Asahi/America, Inc. Ultrasonic vortex flowmeter having clamp-on housing
US6220103B1 (en) * 1996-07-15 2001-04-24 Engineering Measurements Company Vortex detector and flow meter
DE10343958A1 (de) * 2003-09-19 2005-05-19 Abb Patent Gmbh Messgerät und Verfahren zur Messung von Durchflüssen
DE102004060064B4 (de) * 2004-12-14 2016-10-20 Robert Bosch Gmbh Ultraschall-Durchflussmesser mit Turbulatoren
JP4183095B2 (ja) * 2006-04-27 2008-11-19 株式会社オーバル 渦流量計
US8056424B2 (en) * 2009-09-17 2011-11-15 Sean P. Palacios Multi-channel flow sensor with extended flow range and faster response
RU2705705C1 (ru) * 2016-07-21 2019-11-11 Майкро Моушн, Инк. Вихревой расходомер с уменьшенным технологическим вмешательством
DE112017004131B4 (de) 2016-10-19 2023-05-04 Hitachi Astemo, Ltd. Strömungsvolumen-Erfassungsvorrichtung

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CH522327A (de) * 1970-09-28 1972-06-15 Bbc Brown Boveri & Cie Elektrische Filterschaltung
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Also Published As

Publication number Publication date
JPH01267419A (ja) 1989-10-25
JPH0654245B2 (ja) 1994-07-20
AU602629B2 (en) 1990-10-18
US5005427A (en) 1991-04-09
AU3308189A (en) 1989-10-26
US4966040A (en) 1990-10-30
KR920002873B1 (ko) 1992-04-06

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