JPH01140128U - - Google Patents

Info

Publication number
JPH01140128U
JPH01140128U JP1988036851U JP3685188U JPH01140128U JP H01140128 U JPH01140128 U JP H01140128U JP 1988036851 U JP1988036851 U JP 1988036851U JP 3685188 U JP3685188 U JP 3685188U JP H01140128 U JPH01140128 U JP H01140128U
Authority
JP
Japan
Prior art keywords
pressure
diaphragm
vortex
chambers
acquisition port
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
JP1988036851U
Other languages
English (en)
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 filed Critical
Priority to JP1988036851U priority Critical patent/JPH01140128U/ja
Priority to KR2019890002833U priority patent/KR920002275Y1/ko
Priority to US07/323,589 priority patent/US4938074A/en
Priority to DE3908868A priority patent/DE3908868A1/de
Publication of JPH01140128U publication Critical patent/JPH01140128U/ja
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
    • 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
    • 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
    • G01F1/3259—Means for detecting quantities used as proxy variables for swirl for detecting fluid pressure oscillations
    • G01F1/3266—Means for detecting quantities used as proxy variables for swirl for detecting fluid pressure oscillations by sensing mechanical vibrations

Description

【図面の簡単な説明】
第１図はこの考案の一実施例による渦流量計の
断面図、第２図は同上実施例における渦発生部の
拡大断面図、第３図および第４図はそれぞれ同上
実施例における渦圧力検出器の構成を示す拡大断
面図、第５図は同上実施例における制御回路の回
路図、第６図は自動車におけるこの考案の渦流量
計の配置図である。 １……被測定流体、２……導管、３……渦発生
体、４……カルマン渦、５，６……圧力取得口、
８……渦圧力検出器、８１……第１圧力室、８２
……第２圧力室、８３……第３圧力室、８４……
第４圧力室、８５，８６……導圧管部、８７……
半導体チツプ、８７ａ……第１ダイアフラム、８
７ｂ……第２ダイアフラム、１０１……第１ブリ
ツジ回路、１０２……第２ブリツジ回路、１０３
……差動増幅器、１０４……第２差動増幅器、１
０５……第３差動増幅器。なお、図中、同一符号
は同一、または相当部分を示す。

Claims (1)

    【実用新案登録請求の範囲】
  1. 被測定流体の流れる導管内に配設されカルマン
    渦を発生する渦発生体と、上記カルマン渦の渦圧
    を検出する第１圧力取得口に生ずる圧力変化を第
    １および第４圧力室に導びく第１導圧管部と、上
    記渦圧を検出する第２圧力取得口に生ずる圧力変
    化を第２および第３圧力室に導びく第２導圧管部
    と、上記第１圧力室と上記第２圧力室間の隔壁部
    に設けられその両者の差圧に応じて応動する第１
    ダイアフラムと、上記第２圧力室と上記第３圧力
    室間の隔壁部間に設けられてその両者の差圧に応
    じて応動するとともに上記第１ダイアフラムとの
    可動方向軸が一致されかつ互いの可動方向軸と上
    記第１ダイアフラムに加わる外力の最大軸の方向
    と合致しないように配置された第２ダイアフラム
    と、上記第１ダイアフラムおよび第２ダイアフラ
    ムにそれぞれ設けられかつこの第１ダイアフラム
    および第２ダイアフラムの応動によつて互いに正
    、負で絶対値が同等の出力を得る第１、第２ブリ
    ツジ回路と、この第１、第２ブリツジ回路の出力
    を差動増幅して脈動周期の出力を得る差動増幅器
    とを備えた渦流量計。
JP1988036851U 1988-03-17 1988-03-17 Pending JPH01140128U (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1988036851U JPH01140128U (ja) 1988-03-17 1988-03-17
KR2019890002833U KR920002275Y1 (ko) 1988-03-17 1989-03-14 와 류량계
US07/323,589 US4938074A (en) 1988-03-17 1989-03-14 Vortex flow meter
DE3908868A DE3908868A1 (de) 1988-03-17 1989-03-17 Wirbelstroemungsmesser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988036851U JPH01140128U (ja) 1988-03-17 1988-03-17

Publications (1)

Publication Number Publication Date
JPH01140128U true JPH01140128U (ja) 1989-09-26

Family

ID=12481275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988036851U Pending JPH01140128U (ja) 1988-03-17 1988-03-17

Country Status (4)

Country Link
US (1) US4938074A (ja)
JP (1) JPH01140128U (ja)
KR (1) KR920002275Y1 (ja)
DE (1) DE3908868A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920002274Y1 (ko) * 1988-03-15 1992-04-06 미쓰비시전기 주식회사 와 유량계
US5447073A (en) * 1994-02-04 1995-09-05 The Foxboro Company Multimeasurement replaceable vortex sensor
US5869772A (en) * 1996-11-27 1999-02-09 Storer; William James A. Vortex flowmeter including cantilevered vortex and vibration sensing beams

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS543725A (en) * 1977-06-10 1979-01-12 Kubota Ltd Front axle structure for tractor
US4561311A (en) * 1981-12-11 1985-12-31 The Babcock & Wilcox Company Bridge excitation for sensor used on a vortex shedding flow meter
AU556958B2 (en) * 1982-03-15 1986-11-27 Mitsubishi Denki Kabushiki Kaisha Measurement of flow velocity
US4440027A (en) * 1982-05-26 1984-04-03 Ford Motor Company Velocity and mass air flow sensor
JPS6047531A (ja) * 1983-08-26 1985-03-14 Toyota Motor Corp 多重信号伝送システムのフエイルセイフ回路
US4592240A (en) * 1983-10-07 1986-06-03 The Foxboro Company Electrical-charge sensing flowmeter
JPS614808A (ja) * 1984-06-20 1986-01-10 Mitsubishi Heavy Ind Ltd 高圧蒸気タ−ビン動翼
JPH01131119U (ja) * 1988-03-01 1989-09-06

Also Published As

Publication number Publication date
KR920002275Y1 (ko) 1992-04-06
DE3908868A1 (de) 1989-09-28
KR890019671U (ko) 1989-10-05
US4938074A (en) 1990-07-03

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