ES2074127T3 - Medidor termico de flujo de fluidos compensado. - Google Patents

Medidor termico de flujo de fluidos compensado.

Info

Publication number
ES2074127T3
ES2074127T3 ES90306111T ES90306111T ES2074127T3 ES 2074127 T3 ES2074127 T3 ES 2074127T3 ES 90306111 T ES90306111 T ES 90306111T ES 90306111 T ES90306111 T ES 90306111T ES 2074127 T3 ES2074127 T3 ES 2074127T3
Authority
ES
Spain
Prior art keywords
gap
sensors
sensor
fluid
heat sink
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.)
Expired - Lifetime
Application number
ES90306111T
Other languages
English (en)
Inventor
Brian Ellis Mickler
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of ES2074127T3 publication Critical patent/ES2074127T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01F1/68—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
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/6847—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow where sensing or heating elements are not disturbing the fluid flow, e.g. elements mounted outside the flow duct
    • 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
    • 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
    • G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
    • 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
    • G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
    • G01P5/12—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables using variation of resistance of a heated conductor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Details Of Flowmeters (AREA)
  • Measuring Volume Flow (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

EL INVENTO PROVEE UN CAUDALIMETRO DE MASA PARA MEDIR LA VELOCIDAD DE UN FLUIDO QUE UTILIZA UN SENSOR ACTIVO Y DE COMPENSACION. LOS SENSORES GENERAN CALOR CUANDO SE LES SUMINISTRA ENERGIA ELECTRICA. SE UBICA UN PRIMER DISIPADOR A UN PRIMER ESPACIO DE UN PRIMER SENSOR EN UNA DIRECCION SUBSTANCIALMENTE PERPENDICULAR A LA DIRECCION DEL FLUJO DE FLUIDO. SE UBICA UN SEGUNDO DISIPADOR A UN SEGUNDO ESPACIO DEL SEGUNDO SENSOR EN UNA DIRECCION SUBSTANCIALMENTE PERPENDICUALR A LA DIRECCION DEL FLUJO DE FLUIDO. LA DIEMSNION DEL SEGUNDO ESPACIO ES DIFERENTE DE LA DIMENSION DEL PRIMER ESPACIO. EL SUMINISTRO DE ENERGIA ELECTRICA A LOS SENSORES ORIGINA UN FLUJO TERMICO QUE FLUYE A TRAVES DEL PRIMER ESPACIO DESDE EL PRIMER SENSOR A EL PRIMER DISIPADOR DE CALOR, Y ORIGINA UN FLUJO TERMICO QUE FLUYE DESDE EL SEGUNDO SENSOR A TRAVES DEL SEGUNDO ESPACIO AL SEGUNDO DISIPADOR DE CALOR. UN CIRCUITO DE MEDICION COMPUTA LA ELEVACION DE TEMPERATURA EN CADA UNO DE LOS SENSORES CUANDO SE LOS ALIMENTA CON ENERGIA ELECTRICA CON RESPECTO A LA TEMPERATURA AMBIENTE DEL FLUIDO. UN ORDENADOR DIVIDE LA ELEVACION DE TEMPERATURA DE UNO DE LOS SENSORES POR LA ELEVACION DE TEMPERATURA DEL OTRO SENSOR PARA DETERMINAR UNA RELACION. EL ORDENADOR COMPUTA A PARTIR DE ESA RELACION Y LA ENERGIA SUMINISTRADA A CADA UNO DE LOS SENSORES, Y DETERMINA LA VELOCIDAD DEL FLUIDO.
ES90306111T 1989-06-08 1990-06-05 Medidor termico de flujo de fluidos compensado. Expired - Lifetime ES2074127T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/363,220 US4969357A (en) 1988-06-27 1989-06-08 Compensated thermal flux mass flowmeter

Publications (1)

Publication Number Publication Date
ES2074127T3 true ES2074127T3 (es) 1995-09-01

Family

ID=23429329

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90306111T Expired - Lifetime ES2074127T3 (es) 1989-06-08 1990-06-05 Medidor termico de flujo de fluidos compensado.

Country Status (8)

Country Link
US (1) US4969357A (es)
EP (1) EP0403142B1 (es)
JP (1) JP2796174B2 (es)
AT (1) ATE121845T1 (es)
CA (1) CA2018272C (es)
DE (1) DE69018880T2 (es)
DK (1) DK0403142T3 (es)
ES (1) ES2074127T3 (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419190A (en) * 1992-08-03 1995-05-30 Thermal Instrument Co. Apparatus and method for measurement of mass flow rates in a large conduit
NL9201906A (nl) * 1992-11-02 1994-06-01 Huiberts Albertus T Werkwijze en inrichting voor het meten van het debiet van een mediumstroom.
US5764539A (en) * 1994-01-21 1998-06-09 Novartis Nutrition Ag Non-invasive system and method for a fluid flow monitoring system
US5525040A (en) * 1994-03-31 1996-06-11 B&B Financial Planning Inc. Controller for oil wells with a thermal dispersion probe
US5984641A (en) * 1997-05-05 1999-11-16 1273941 Ontario Inc. Controller for oil wells using a heated probe sensor
US6447520B1 (en) * 2001-03-19 2002-09-10 Advanced Medical Optics, Inc. IOL insertion apparatus with IOL engagement structure and method for using same
NL1017334C2 (nl) * 2001-02-12 2002-08-13 Tno Werkwijze en inrichting voor het bepalen van een warmtestroom naar een flu´dum.
NL1017335C2 (nl) * 2001-02-12 2002-08-13 Tno Werkwijze en inrichting voor het bepalen van een warmteoverdrachtcoÙfficiÙnt van een sensorsamenstel naar een flu´dum.
CA2437912A1 (en) * 2001-03-26 2002-10-03 Sit La Precisa S.P.A. A device for measuring gas flow-rate, particularly for burners
US6796172B2 (en) * 2002-07-31 2004-09-28 Hewlett-Packard Development Company, L.P. Flow sensor
US6871535B2 (en) 2002-08-14 2005-03-29 Hewlett-Packard Development Company, L.P. Flow direction detector
US7481213B2 (en) * 2004-02-11 2009-01-27 Hewlett-Packard Development Company, L.P. Medicament dispenser
US7467630B2 (en) * 2004-02-11 2008-12-23 Hewlett-Packard Development Company, L.P. Medicament dispenser
US20060159091A1 (en) * 2005-01-19 2006-07-20 Arjen Boers Active multicast information protocol
US7467545B2 (en) * 2007-05-09 2008-12-23 Yaron Ankori Method and device for measuring water currents
US7860667B2 (en) * 2008-10-03 2010-12-28 Ruskin Company Gas measurement system
US9568349B2 (en) 2013-03-15 2017-02-14 Ruskin Company Gas flow measurement system and method of operation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752866A (en) * 1980-09-13 1982-03-29 Tokyo Keiso Kk Flow speed measuring device
JPS5988622A (ja) * 1982-11-12 1984-05-22 Ohkura Electric Co Ltd 熱式質量流量計
US4790181A (en) * 1983-12-01 1988-12-13 Aine Harry E Thermal mass flow meter and method of making same
US4691566A (en) * 1984-12-07 1987-09-08 Aine Harry E Immersed thermal fluid flow sensor
US4735086A (en) * 1987-06-26 1988-04-05 Ford Motor Company Thick film mass airflow meter with minimal thermal radiation loss

Also Published As

Publication number Publication date
CA2018272C (en) 1996-10-01
DE69018880D1 (de) 1995-06-01
JP2796174B2 (ja) 1998-09-10
CA2018272A1 (en) 1990-12-08
DK0403142T3 (da) 1995-10-02
EP0403142B1 (en) 1995-04-26
ATE121845T1 (de) 1995-05-15
JPH03103722A (ja) 1991-04-30
EP0403142A2 (en) 1990-12-19
EP0403142A3 (en) 1992-11-25
DE69018880T2 (de) 1995-09-21
US4969357A (en) 1990-11-13

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