EP1904813A2 - Unite de detection pour fluides - Google Patents

Unite de detection pour fluides

Info

Publication number
EP1904813A2
EP1904813A2 EP06775703A EP06775703A EP1904813A2 EP 1904813 A2 EP1904813 A2 EP 1904813A2 EP 06775703 A EP06775703 A EP 06775703A EP 06775703 A EP06775703 A EP 06775703A EP 1904813 A2 EP1904813 A2 EP 1904813A2
Authority
EP
European Patent Office
Prior art keywords
sensor unit
sensor
fluid
unit
measuring probe
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.)
Withdrawn
Application number
EP06775703A
Other languages
German (de)
English (en)
Inventor
Oliver Betz
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.)
systec Controls Mess- und Regeltechnik GmbH
systec Controls Mess und Regeltechnik GmbH
Original Assignee
systec Controls Mess- und Regeltechnik GmbH
systec Controls Mess und Regeltechnik GmbH
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 systec Controls Mess- und Regeltechnik GmbH, systec Controls Mess und Regeltechnik GmbH filed Critical systec Controls Mess- und Regeltechnik GmbH
Publication of EP1904813A2 publication Critical patent/EP1904813A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the 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
    • G01F1/34—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 measuring pressure or differential pressure
    • G01F1/36—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 measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/363—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 measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction with electrical or electro-mechanical indication
    • 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
    • G01F1/34—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 measuring pressure or differential pressure
    • G01F1/36—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 measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/40—Details of construction of the flow constriction devices
    • G01F1/46—Pitot tubes
    • 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
    • G01F1/34—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 measuring pressure or differential pressure
    • G01F1/50—Correcting or compensating means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
    • G01P5/16—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid using Pitot tubes, e.g. Machmeter

Definitions

  • Hot-melt anemometers are known for measuring mass flow. In this
  • the gas flow is passed over a heated surface of the sensor.
  • the flowing gas cools the heated surface.
  • the value of this cooling is the starting point for the determination of the mass flow.
  • the static pressure, the differential pressure and the temperature must be known. According to the invention, these variables are detected by individual sensors which are located in an integrated unit and detected by the individual sensors
  • Values are then processed in an integrated processing unit.
  • the sensor unit outputs to a subsequent control unit from a value that already takes into account other parameters and / or physical constants.
  • part of the computing power is advantageously done in the sensor unit and relieves the control unit.
  • it is contemplated to integrate a further sensor, which allows an analysis of Fluidzusaminen Anlagen. This makes it possible, e.g. Determine pollutant loads of engine exhaust.
  • Advantageous Effects The listed measured variables are required, for example, for the optimized control of an internal combustion engine.
  • the optimized control of an internal combustion engine In particular, in this application, the
  • Figure 2 shows the sensor unit in the bottom view
  • the sensor unit 1 has a measuring probe 2, which comes into contact with the fluid and a housing part 3, which is located outside of the fluid.
  • the housing part 3 are the individual not visible here sensors and the computing unit.
  • the sensor unit 1 is provided to be attached directly to a fluid-carrying line. Through an opening in the fluid-carrying line, the probe 2 can protrude into the fluid flow.
  • a seal 5 is provided, which seals the opening.
  • the measuring probe 2 is at least partially designed as a dynamic pressure probe 4.
  • Fluid has a direction of flow according to the arrow S.
  • a storage area 6 is formed by a storage area 6 depending on the flow
  • Pressure difference at two measuring openings. 2 is a view from below of the sensor unit 1. In this illustration, one recognizes the two measuring openings 7a and 7b of the dynamic pressure probe. At the lower end of the storage area 6 there is a further measuring opening 8 for detecting the static pressure. The measuring opening 8 is arranged so that the fluid flows laminar past her.
  • a temperature sensor 9 Also in the measuring mode 2 is a temperature sensor 9.
  • Temperature sensor is located near the surface in the measuring mode 2, whereby it can quickly detect changes in temperature of the fluid.
  • the temperature sensor 9 is located in the storage area. This storage area consists of relatively little material and therefore follows promptly the temperature changes of the fluid.
  • the temperature sensor 9 is arranged at a position at which the fluid flows past laminar. In this way, it is avoided that particles transported in the fluid outside of the measuring probe 2 form an insulating layer, which falsifies the temperature measurement.
  • the mass flow of a fluid can be determined.
  • the housing of the sensor unit completely or at least partially in the region of the measuring probe 2 with a surface which has a so-called nanostructure.
  • This nanostructure ensures that particles transported in the fluid can not permanently settle on the surface of the measuring probe.
  • FIG. 3 A particularly simple embodiment of the measuring probe with regard to the manufacturing outlay is shown in FIG. 3.
  • slots 10 are present in the probe. In the selected representation, only one of the slots is visible. These slots are each in the outer wall of the two channels leading to the differential pressure sensor in the housing part. The connecting wall between the two channels is unchanged and is used as a storage area.
  • the length of the slots results in a certain mean value function when the flow velocity of the fluid is different at different locations of the slot.
  • the one arithmetic unit and the sensors for the dynamic differential pressure and the sensor for the static pressure are housed protected.
  • To the arithmetic unit is also the temperature sensor 9 and / or the
  • Gas analysis sensor connected.
  • the arithmetic unit outputs a measured value which results from the individual values of the various sensors.
  • the arithmetic unit is designed to be flexible and can be adapted to different requirements of subsequent control units.
  • the invention is industrially applicable in many fields in which a long-term stability of the measured values is important.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Pour pouvoir déterminer le débit massique, le débit volumétrique normale ou le flux d'enthalpie d'un fluide, la pression statique, la pression différentielle et la température doivent être connues. Selon l'invention, ces grandeurs sont détectées par des capteurs individuels se trouvant dans une unité intégrée, puis les valeurs détectées par ces capteurs individuels sont traitées dans une unité de calcul également intégrée. Cette unité de détection fournit à une unité de régulation placée en aval une valeur qui prend déjà en compte également d'autres paramètres et/ou constantes physiques. De cette manière, une partie des opérations de calcul est effectuée de façon avantageuse dans l'unité de détection et la charge de l'unité de régulation est réduite.
EP06775703A 2005-07-14 2006-07-13 Unite de detection pour fluides Withdrawn EP1904813A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/DE2005/001258 WO2007009409A1 (fr) 2005-07-14 2005-07-14 Sonde de pitot
PCT/DE2006/001219 WO2007006297A2 (fr) 2005-07-14 2006-07-13 Unite de detection pour fluides

Publications (1)

Publication Number Publication Date
EP1904813A2 true EP1904813A2 (fr) 2008-04-02

Family

ID=35976586

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05782809.7A Expired - Lifetime EP1904812B1 (fr) 2005-07-14 2005-07-14 Sonde de pitot
EP06775703A Withdrawn EP1904813A2 (fr) 2005-07-14 2006-07-13 Unite de detection pour fluides

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05782809.7A Expired - Lifetime EP1904812B1 (fr) 2005-07-14 2005-07-14 Sonde de pitot

Country Status (5)

Country Link
US (2) US7798017B2 (fr)
EP (2) EP1904812B1 (fr)
CN (2) CN101253394B (fr)
DE (3) DE112005003700A5 (fr)
WO (2) WO2007009409A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1904812B1 (fr) * 2005-07-14 2014-12-03 systec Controls Mess- und Regeltechnik GmbH Sonde de pitot
DE202007005695U1 (de) 2007-04-18 2008-08-28 systec Controls Meß- und Regeltechnik GmbH Staudrucksonde
DE112008003987A5 (de) * 2008-06-18 2011-06-09 systec Controls Meß- und Regeltechnik GmbH Staudrucksonde mit Differenzdruckerhöher
US9192795B2 (en) * 2011-10-07 2015-11-24 Honeywell International Inc. System and method of calibration in a powered air purifying respirator
CN102518497A (zh) * 2011-12-20 2012-06-27 清华大学 用于使消声器与发动机相匹配的发动机排气参数检测装置
US9808656B2 (en) 2012-01-09 2017-11-07 Honeywell International Inc. System and method of oxygen deficiency warning in a powered air purifying respirator
GB2509108A (en) * 2012-12-20 2014-06-25 Taylor Hobson Ltd Method and apparatus for flow measurement
US9701847B2 (en) 2012-12-21 2017-07-11 Mcp Ip, Llc Reinforced powder paint for composites
US8960018B2 (en) * 2013-03-14 2015-02-24 Dieterich Standard, Inc. Pitot tube traverse assembly
CN106017599A (zh) * 2016-06-27 2016-10-12 苏州科博思流体科技有限公司 一种多连接孔的法兰流量计
AU2019404039B2 (en) 2018-12-19 2022-07-07 Boston Scientific Scimed, Inc. Dampening element for fluid management system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69917594T2 (de) * 1998-01-05 2005-06-23 United States Environmental Protection Agency Modularer echtzeit- abgas-durchflussmesser für fahrende fahrzeuge und berichtsystem für emissionen

Family Cites Families (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355946A (en) * 1965-01-19 1967-12-05 Lazell Robert Charles Pitot tubes
US3895531A (en) * 1968-02-16 1975-07-22 Robert R Lambert Apparatus for sensing volumetric rate of air flow
US3590637A (en) * 1969-12-17 1971-07-06 William R Brown Flow meter
US3683693A (en) * 1970-10-08 1972-08-15 William R Brown Universal proportional differential pressure producing fluid flow device
US3910113A (en) * 1972-11-20 1975-10-07 William R Brown Method of selectively varying the differential output and overall performance characteristics of a proportional differential pressure producing fluid flow device
US3981193A (en) * 1975-05-23 1976-09-21 Goulet Roger T Fluid pressure sensing apparatus
US4304137A (en) * 1979-05-31 1981-12-08 Honeywell Inc. Air direction insensitive static pressure sensor
US4444060A (en) * 1981-03-06 1984-04-24 Nihon Cambridge Filter Kabushiki Kaisha Fluid pressure sensing apparatus
GB2171526B (en) * 1985-02-27 1988-08-10 British Gas Plc Fluid flow rake monitor probe
US4624146A (en) * 1985-03-05 1986-11-25 Onoda Cement Company, Ltd. Flow rate measurement apparatus
WO1987006710A1 (fr) * 1986-04-24 1987-11-05 Roland Sommer Dispositif et procede pour mesurer la vitesse d'un ecoulement libre dans l'espace
JPS6333663A (ja) * 1986-07-28 1988-02-13 Yamatake Honeywell Co Ltd 流速測定装置
US4890492A (en) * 1988-09-06 1990-01-02 Emhart Industries, Inc. Differential pressure level sensor with temperature sensing elements
US5001638A (en) * 1989-04-18 1991-03-19 The Boeing Company Integrated aircraft air data system
AU665973B2 (en) * 1991-12-23 1996-01-25 National Institute Of Water & Atmospheric Research Limited A flow gauging system
CN2108927U (zh) * 1991-12-29 1992-07-01 南昌市惠通电工厂 差压式流速流量传感装置
US5535633A (en) * 1992-09-23 1996-07-16 Korr Medical Technologies, Inc. Differential pressure sensor for respiratory monitoring
US5443075A (en) * 1993-03-01 1995-08-22 Puritan-Bennett Corporation Flow measuring apparatus
US5438880A (en) * 1994-05-17 1995-08-08 United Technologies Corporation Electrostatic linear airspeed transducer
US5483839A (en) * 1994-12-08 1996-01-16 The United States Of America As Represented By The Secretary Of The Navy Multi-pitot tube assembly
US5736651A (en) * 1996-05-23 1998-04-07 Bowers; James R. High temperature gas flow sensing element
US5773726A (en) * 1996-06-04 1998-06-30 Dieterich Technology Holding Corp. Flow meter pitot tube with temperature sensor
CA2249797C (fr) * 1997-10-16 2001-03-27 Yasuo Yamamoto Capteur de pression de fluide et appareil de mesure du debit d'air comprenant un tel capteur
US5913250A (en) * 1997-10-29 1999-06-15 Fluid Components Intl Pressure compensated thermal flow meter
US6189390B1 (en) * 1998-04-02 2001-02-20 Compliance Instrument, Inc. Method and apparatus for measuring gas velocity or other flow characteristic
FR2779821B1 (fr) * 1998-06-15 2000-09-01 Environnement Sa Dispositif d'echantillonnage de gaz pour un conduit ou une cheminee
US6237426B1 (en) * 1999-02-12 2001-05-29 E.H. Price Limited Airflow sensor
US6425293B1 (en) * 1999-03-13 2002-07-30 Textron Systems Corporation Sensor plug
US6321166B1 (en) * 1999-08-05 2001-11-20 Russell N. Evans Noise reduction differential pressure measurement probe
DE19952314C2 (de) * 1999-10-29 2002-06-20 Abb Patent Gmbh Sensor, insbesondere Sensor mit planarer wirksamer Sensorfläche
US20030139690A1 (en) * 2000-01-07 2003-07-24 Nikolaus Aebli Device for in vivo measurement of pressures and pressure variations in or on bones
DE10009067A1 (de) * 2000-02-25 2001-08-30 Endress Hauser Gmbh Co Meßgerät mit Seilsonde und Verfahren zum Kürzen der Seilsonde
JP3637278B2 (ja) * 2000-12-20 2005-04-13 Ｓｍｃ株式会社 ２センサ式流量計
US6487918B1 (en) * 2000-12-22 2002-12-03 Mestek, Inc. Airflow sensor for averaging total pressure
US7010970B2 (en) * 2001-01-12 2006-03-14 Rediniotis Othon K Embedded-sensor multi-hole probes
US6452542B1 (en) * 2001-03-02 2002-09-17 Rosemount Aerospace Inc. Integrated flight management system
CN2474997Y (zh) * 2001-04-01 2002-01-30 张庆 标准风量测量传感器
US6609825B2 (en) * 2001-09-21 2003-08-26 Rosemount Aerospace Inc. Total air temperature probe providing improved anti-icing performance and reduced deicing heater error
KR100432640B1 (ko) * 2001-12-05 2004-05-22 차은종 일회용 호흡관을 사용하는 호흡 유량 계측장치
US20030145661A1 (en) * 2002-02-06 2003-08-07 Thomas Taranto Gas parameter sensing apparatus and method
US20030172746A1 (en) * 2002-03-15 2003-09-18 Walker Mark A. Airflow Sensor
US7284450B2 (en) * 2002-04-09 2007-10-23 Dieterich Standard, Inc. Averaging orifice primary flow element
DE10253086B4 (de) * 2002-11-13 2005-02-03 Krohne Meßtechnik GmbH & Co KG Schwebekörperdurchflußmeßgerät
US6868741B2 (en) * 2003-03-05 2005-03-22 Veris, Inc. Device and method enabling fluid characteristic measurement utilizing fluid acceleration
DE07002436T1 (de) * 2003-08-18 2018-10-18 Horiba, Ltd. Verfahren und Vorrichtung zur Messung des Emissionsdurchsatzes
US6883389B2 (en) * 2003-08-21 2005-04-26 Eldridge Products, Inc. Flow averaging tube and method of using same
DE102004008184B4 (de) * 2004-02-19 2006-07-20 Audi Ag Luftmassenmesser
DE202004005482U1 (de) * 2004-04-02 2005-08-11 systec Controls Meß- und Regeltechnik GmbH Staudrucksonde
DE102004020284B4 (de) * 2004-04-26 2006-12-28 Pötter, Friedrich Staudrucksonde
US7201067B2 (en) * 2004-09-22 2007-04-10 Kulite Semiconductor Products, Inc. System and method for determining flow characteristics
CN100567909C (zh) * 2005-01-26 2009-12-09 西斯泰克控制测量及工程股份有限公司 动态压力探测器
CA2504074C (fr) * 2005-04-13 2013-10-22 E. H. Price Limited Debitmetre d'air
EP1904812B1 (fr) * 2005-07-14 2014-12-03 systec Controls Mess- und Regeltechnik GmbH Sonde de pitot
US7490510B2 (en) * 2005-10-24 2009-02-17 Ametek, Inc. Multi-function air data sensor
US7828477B2 (en) * 2007-05-14 2010-11-09 Rosemount Aerospace Inc. Aspirated enhanced total air temperature probe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69917594T2 (de) * 1998-01-05 2005-06-23 United States Environmental Protection Agency Modularer echtzeit- abgas-durchflussmesser für fahrende fahrzeuge und berichtsystem für emissionen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007006297A2 *

Also Published As

Publication number Publication date
CN101258385A (zh) 2008-09-03
EP1904812A1 (fr) 2008-04-02
DE202005016862U1 (de) 2006-11-16
WO2007006297A2 (fr) 2007-01-18
WO2007009409A1 (fr) 2007-01-25
DE112005003700A5 (de) 2008-06-19
WO2007006297A3 (fr) 2007-08-02
US8065925B2 (en) 2011-11-29
HK1123093A1 (en) 2009-06-05
US20090217752A1 (en) 2009-09-03
EP1904812B1 (fr) 2014-12-03
DE112006002455A5 (de) 2008-06-26
US7798017B2 (en) 2010-09-21
US20090211372A1 (en) 2009-08-27
HK1120858A1 (en) 2009-04-09
CN101253394B (zh) 2012-01-25
CN101253394A (zh) 2008-08-27
CN101258385B (zh) 2013-02-27

Similar Documents

Publication Publication Date Title
DE69533006T2 (de) Thermischer Luftdurchflussmesser
EP1904813A2 (fr) Unite de detection pour fluides
DE2730770C3 (de) Ultraschallmeßvorrichtung zur Bestimmung der Strömungsgeschwindigkeit der Luft im Ansaugkanal einer Brennkraftmaschine
EP3191804B1 (fr) Dispositif de détection pour déterminer au moins un paramètre d'un milieu fluide s'écoulant dans un conduit de mesure
DD209518A5 (de) Geraet zum messen ausgetauschter waermemengen
EP2686644B1 (fr) Dispositif servant à appréhender au moins une propriété d'un milieu fluide
EP2142890B1 (fr) Dispositif de mesure de fluides en écoulement
EP2906914A1 (fr) Ensemble de capteurs servant à déterminer la teneur en humidité d'un milieu fluide qui s'écoule dans une direction d'écoulement principale
EP3097388A1 (fr) Système de détection servant à déterminer au moins un paramètre d'un milieu fluide circulant dans une structure de conduit
DE112017004131T5 (de) Strömungsvolumen-Erfassungsvorrichtung
DE102004023919B4 (de) Luftflussraten-Messvorrichtung
DE112012004149T5 (de) Feuchtigkeitsmessvorrichtung
EP1296118B1 (fr) Dispositif pour la mesure de la consommation de gaz
DE102004033049B4 (de) Messeinrichtung für einen Durchflusssensor, insbesondere einen Luftmassensensor für Brennkraftmaschinen und Verfahren zum Messen von Luftströmen
WO2000062056A1 (fr) Capteur de gaz a semi-conducteur pourvu d'un boitier, et procede de mesure de concentrations de gaz
DE102007044079B4 (de) Durchflusssensor
DE102013226345A1 (de) Sensoranordnung zur Bestimmung wenigstens eines Parameters eines durch einen Kanal strömenden fluiden Mediums
DE102008032309B4 (de) Sensoranordnung zur Messung des Zustands einer Flüssigkeit, insbesondere von Öl
DE3104134A1 (de) Durchflussmesser
DE102006029215A1 (de) Messvorrichtung zur Messung der Durchflußrate eines Verbrennungsgas-Gemisches, aufweisend eine Korrektureinrichtung
DE102013207629A1 (de) Optischer Sensor
DE102021100802A1 (de) Durchflussmesser, verfahren zur durchflussmessung und programm zur durchflussmessung
DE112020001927T5 (de) Durchflussmessvorrichtung
DE8432304U1 (de) Druckmessvorrichtung fuer eine klimatechnischen anlage
DE102021103501A1 (de) Durchflussmessgerät

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080207

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20090424

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20181220