JP4906357B2 - 流量計 - Google Patents
流量計 Download PDFInfo
- Publication number
- JP4906357B2 JP4906357B2 JP2006013626A JP2006013626A JP4906357B2 JP 4906357 B2 JP4906357 B2 JP 4906357B2 JP 2006013626 A JP2006013626 A JP 2006013626A JP 2006013626 A JP2006013626 A JP 2006013626A JP 4906357 B2 JP4906357 B2 JP 4906357B2
- Authority
- JP
- Japan
- Prior art keywords
- flow
- flow rate
- fluid
- smoothed
- counter
- 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.)
- Active
Links
- 239000012530 fluid Substances 0.000 claims description 63
- 230000010354 integration Effects 0.000 claims description 41
- 230000010355 oscillation Effects 0.000 claims description 20
- 238000009499 grossing Methods 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
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
- G01F1/68—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 thermal effects
- G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
- G01F1/6842—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow with means for influencing the fluid flow
-
- 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
- G01F1/68—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 thermal effects
-
- 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
-
- 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
- G01F1/68—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 thermal effects
- G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
- G01F1/688—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
- G01F1/69—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element of resistive type
- G01F1/692—Thin-film arrangements
-
- 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
- G01F1/68—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 thermal effects
- G01F1/696—Circuits therefor, e.g. constant-current flow meters
-
- 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
- G01F1/72—Devices for measuring pulsing fluid flows
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/07—Integration to give total flow, e.g. using mechanically-operated integrating mechanism
- G01F15/075—Integration to give total flow, e.g. using mechanically-operated integrating mechanism using electrically-operated integrating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F7/00—Volume-flow measuring devices with two or more measuring ranges; Compound meters
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Details Of Flowmeters (AREA)
Description
<a> 流体の通流路に設けられた流量センサであって、上記流体の正流および逆流の瞬時流量を計測可能な流量センサと、
<b> この流量センサにて計測された瞬時流量を平滑化する平滑化手段と、
<c> この平滑化手段にて求められた平滑化流量を積算して出力する積算カウンタと、
<d> 前記平滑化流量を監視して前記流体の揺動の有無を判定する判定手段と、
<e> この判定手段において揺動判定が行われている間、および揺動流であると判定されたとき前記積算カウンタに代わって前記平滑化流量を積算する補助カウンタと、
<f> 前記判定手段において通常流であると判定されたとき、上記補助カウンタによる積算流量を前記積算カウンタに加算して該積算カウンタによる前記平滑化流量の積算を再開させる制御手段と
を備えたことを特徴としている。
図1および図2はこの実施形態に係る流量計(ガスメータ)の概略構成を示すもので、図1はその一部を断面化して表した正面図、図2はその一部を断面化して表した側面図である。この流量計は、流体(ガス)の配管(図示せず)に結合される一対のフランジ継ぎ手管11,12の間に、その壁面に複数の熱式流量センサ13を装着した流路管14を連結して上記流体(ガス)の通流路を形成した流路ユニット15を主体として構成される。この流路ユニット15には、上記流路管14を覆ってカバー体16が装着され、このカバー体16に箱形の流量計本体17が装着されている。
15 流路ユニット
17 流量計本体
31 瞬時流量計測部
32 瞬時流量平滑化部
33 揺動判定部
34 積算カウンタ部
35 補助カウンタ部
Claims (5)
- 流体の通流路に設けられた流量センサであって、上記流体の正流および逆流の瞬時流量を計測可能な流量センサと、
この流量センサにて計測された瞬時流量を平滑化する平滑化手段と、
この平滑化手段にて求められた平滑化流量を積算して出力する積算カウンタと、
前記平滑化流量を監視して前記流体の揺動の有無を判定する判定手段と、
この判定手段において揺動判定が行われている間、および揺動流であると判定されたとき前記積算カウンタに代わって前記平滑化流量を積算する補助カウンタと、
前記判定手段において通常流であると判定されたとき、上記補助カウンタによる積算流量を前記積算カウンタに加算して該積算カウンタによる前記平滑化流量の積算を再開させる制御手段と
を具備したことを特徴とする流量計。 - 前記判定手段は、前記平滑化流量から逆流が検出されたときに揺動ありと判定し、前記平滑化流量が予め定めた期間に亘って正流であることを示すときに通常流であると判定するものである請求項1に記載の流量計。
- 前記判定手段は、前記平滑化流量から逆流が検出されたときに揺動ありと判定し、正流の前記平滑化流量が予め設定した閾値を超えたときには、直ちに通常流であると判定するものである請求項1に記載の流量計。
- 前記補助カウンタは、前記平滑化流量から逆流が検出される都度、その積算値がリセットされるものである請求項1に記載の流量計。
- 前記流量センサは、ヒータ素子を挟んで流体の通流方向に設けられた一対の感熱抵抗素子を備え、これらの感熱抵抗素子によりそれぞれ検出される温度の差から流体の質量流量とその通流方向とを求める熱式流量センサである請求項1に記載の流量計。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006013626A JP4906357B2 (ja) | 2006-01-23 | 2006-01-23 | 流量計 |
PCT/JP2007/050922 WO2007083799A1 (ja) | 2006-01-23 | 2007-01-22 | 流量計 |
US12/087,959 US7861585B2 (en) | 2006-01-23 | 2007-01-22 | Flowmeter |
KR1020087012985A KR100959519B1 (ko) | 2006-01-23 | 2007-01-22 | 유량계 |
EP07707185.0A EP1978335B1 (en) | 2006-01-23 | 2007-01-22 | Flowmeter |
CN2007800027515A CN101371108B (zh) | 2006-01-23 | 2007-01-22 | 流量计 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006013626A JP4906357B2 (ja) | 2006-01-23 | 2006-01-23 | 流量計 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007192774A JP2007192774A (ja) | 2007-08-02 |
JP4906357B2 true JP4906357B2 (ja) | 2012-03-28 |
Family
ID=38287741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006013626A Active JP4906357B2 (ja) | 2006-01-23 | 2006-01-23 | 流量計 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7861585B2 (ja) |
EP (1) | EP1978335B1 (ja) |
JP (1) | JP4906357B2 (ja) |
KR (1) | KR100959519B1 (ja) |
CN (1) | CN101371108B (ja) |
WO (1) | WO2007083799A1 (ja) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008023654A1 (de) * | 2008-05-15 | 2009-11-19 | Endress + Hauser Flowtec Ag | Verfahren zur Bestimmung und/oder Überwachung des Durchflusses durch ein Messrohr |
JP5123231B2 (ja) * | 2009-03-10 | 2013-01-23 | アズビル株式会社 | 流量計、流量計測方法、及び流量計測プログラム |
EP2345876B1 (en) | 2010-01-18 | 2019-09-11 | Flow-Tronic S.A. | Method for avoiding jumps in measurement results and improving accuracy in hybrid flow meters |
CN102781014A (zh) * | 2011-05-10 | 2012-11-14 | 淮阴工学院 | 基于无线传感器网络和3g网络的智能流量监测方法 |
US8864643B2 (en) | 2011-10-13 | 2014-10-21 | Thoratec Corporation | Pump and method for mixed flow blood pumping |
US9170135B2 (en) | 2012-10-30 | 2015-10-27 | Itron, Inc. | Module for gas flow measurements with a dual sensing assembly |
US9222812B2 (en) * | 2012-10-30 | 2015-12-29 | Itron, Inc. | Hybrid sensor system for gas flow measurements |
US9612146B2 (en) | 2014-02-07 | 2017-04-04 | Honeywell International, Inc. | Airflow sensor with dust reduction |
CA2945735C (en) * | 2014-04-14 | 2023-02-28 | National Research Council Of Canada | Rear-facing airstream sensor |
US9664550B2 (en) | 2014-09-18 | 2017-05-30 | Mueller International, Llc | Adjustable meter with tamper detection |
US9476740B2 (en) | 2014-09-18 | 2016-10-25 | Mueller International, Llc | Reverse flow detection and annunciation |
US9671254B2 (en) | 2014-09-18 | 2017-06-06 | Mueller International, Llc | Magnetic sensing to detect tampering with a utility meter |
US9891088B2 (en) | 2014-09-18 | 2018-02-13 | Mueller International, Llc | Real-time flow compensation in usage accumulation |
US10094706B2 (en) | 2014-09-18 | 2018-10-09 | Mueller International, Llc | Mode activation using light detection |
WO2017031714A1 (zh) * | 2015-08-26 | 2017-03-02 | 深圳市思达仪表有限公司 | 采样电路、检测装置、流仪表及流量信号检测方法 |
US9976871B2 (en) | 2015-11-30 | 2018-05-22 | Mueller International, Llc | Solid-state register initiated poll of status information |
JP2021038930A (ja) * | 2019-08-30 | 2021-03-11 | オムロン株式会社 | ガスメータ |
CN111397677A (zh) * | 2020-03-14 | 2020-07-10 | 浙江威星智能仪表股份有限公司 | 一种基于超声波计量的脉动流检测方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3812330A (en) * | 1972-08-18 | 1974-05-21 | Dasibi Corp | Automatic calibration circuit for gas analyzers |
US3889255A (en) * | 1974-03-22 | 1975-06-10 | Corning Glass Works | Digital calibration system for an electronic instrument |
US3975727A (en) * | 1974-06-28 | 1976-08-17 | Technicon Instruments Corporation | Automated calibration and standardization apparatus |
US4126040A (en) * | 1977-12-30 | 1978-11-21 | Gard, Inc. | Liquid level gauge |
US4233989A (en) * | 1978-12-26 | 1980-11-18 | Rca Corporation | Echocardiographic apparatus for myocardial disease diagnosis by A-wave quantification |
US4298948A (en) * | 1979-11-30 | 1981-11-03 | Ird Mechanalysis, Inc. | Method and apparatus for generating a digital representation of the instantaneous angular position of a rotating body and for generating rectangular coordinate equivalents thereof |
DE3133182C1 (de) * | 1981-08-19 | 1983-01-13 | Mannesmann AG, 4000 Düsseldorf | Einrichtung zur Ermittlung des Metallbadspiegels in Schlacke-Metall-Baedern |
JPS60150452A (ja) * | 1984-01-19 | 1985-08-08 | Mitsubishi Electric Corp | 内燃機関の燃料制御装置 |
FR2572518B1 (fr) * | 1984-10-26 | 1988-07-08 | British Petroleum Co | Jaugeur pour citerne a liquide |
DE3509118C2 (de) * | 1985-03-14 | 1994-03-24 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Messung des Durchsatzes eines ein Rohr durchströmenden Mediums |
JP3141762B2 (ja) * | 1995-12-13 | 2001-03-05 | 株式会社日立製作所 | 空気流量計測装置及び空気流量計測方法 |
JP2002081978A (ja) * | 2000-09-08 | 2002-03-22 | Kansai Gas Meter Co Ltd | 流量測定方法 |
JP4269047B2 (ja) * | 2002-08-29 | 2009-05-27 | 東京瓦斯株式会社 | 積算流量計 |
JP4269045B2 (ja) * | 2002-08-29 | 2009-05-27 | 東京瓦斯株式会社 | 積算流量計 |
-
2006
- 2006-01-23 JP JP2006013626A patent/JP4906357B2/ja active Active
-
2007
- 2007-01-22 CN CN2007800027515A patent/CN101371108B/zh active Active
- 2007-01-22 WO PCT/JP2007/050922 patent/WO2007083799A1/ja active Application Filing
- 2007-01-22 US US12/087,959 patent/US7861585B2/en not_active Expired - Fee Related
- 2007-01-22 KR KR1020087012985A patent/KR100959519B1/ko not_active IP Right Cessation
- 2007-01-22 EP EP07707185.0A patent/EP1978335B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN101371108B (zh) | 2011-05-25 |
EP1978335B1 (en) | 2019-08-07 |
CN101371108A (zh) | 2009-02-18 |
WO2007083799A1 (ja) | 2007-07-26 |
EP1978335A4 (en) | 2013-12-11 |
US20100223992A1 (en) | 2010-09-09 |
US7861585B2 (en) | 2011-01-04 |
EP1978335A1 (en) | 2008-10-08 |
KR20080071161A (ko) | 2008-08-01 |
JP2007192774A (ja) | 2007-08-02 |
KR100959519B1 (ko) | 2010-05-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4906357B2 (ja) | 流量計 | |
KR101073239B1 (ko) | 가스 차단 장치 | |
JP4024110B2 (ja) | 超音波流量計測装置 | |
JP4832906B2 (ja) | 流量計 | |
JP3464391B2 (ja) | 推量式流量計 | |
JP4083367B2 (ja) | ガス保安装置 | |
JP4623486B2 (ja) | 流量計測装置 | |
JP4269045B2 (ja) | 積算流量計 | |
JP4623487B2 (ja) | 流量計測装置 | |
JP4269047B2 (ja) | 積算流量計 | |
JP2002062179A (ja) | ガスメータ | |
JP4426695B2 (ja) | 流量計測方法、流量計測装置及び電子式ガスメータ | |
JP2009244215A (ja) | 流量計 | |
JP3734025B2 (ja) | 熱式流量計 | |
JP4272548B2 (ja) | 遮断異常検出方法及びガスメータ | |
JPH08271307A (ja) | ガス流量計 | |
JP2004093171A (ja) | 積算流量計 | |
JP4147274B2 (ja) | 積算流量計 | |
JP4623488B2 (ja) | 流体の流れ計測装置 | |
JP2008292287A (ja) | 流量計 | |
JP2004093175A (ja) | 熱式流量計 | |
JP2023149980A (ja) | ガス遮断装置 | |
JP4604519B2 (ja) | 流れ計測装置 | |
JP2003121231A (ja) | 熱式流量計 | |
JP2002122457A (ja) | ガス遮断装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080828 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20111214 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120110 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150120 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4906357 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |