FI980988A - Ilmavirtauksen virtausanturin virtausvastus - Google Patents

Ilmavirtauksen virtausanturin virtausvastus Download PDF

Info

Publication number
FI980988A
FI980988A FI980988A FI980988A FI980988A FI 980988 A FI980988 A FI 980988A FI 980988 A FI980988 A FI 980988A FI 980988 A FI980988 A FI 980988A FI 980988 A FI980988 A FI 980988A
Authority
FI
Finland
Prior art keywords
flow
airflow
resistance
flow sensor
flow resistance
Prior art date
Application number
FI980988A
Other languages
English (en)
Swedish (sv)
Other versions
FI980988A0 (fi
Inventor
Mikko Eloranta
Original Assignee
Medikro Oy
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 Medikro Oy filed Critical Medikro Oy
Priority to FI980988A priority Critical patent/FI980988A/fi
Publication of FI980988A0 publication Critical patent/FI980988A0/fi
Priority to AU39341/99A priority patent/AU3934199A/en
Priority to PCT/FI1999/000368 priority patent/WO1999060343A1/en
Publication of FI980988A publication Critical patent/FI980988A/fi

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/087—Measuring breath 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
    • G01F1/05—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
    • 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
    • G01F1/42—Orifices or nozzles
    • 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
    • G01F1/44—Venturi tubes

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Physiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pulmonology (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring Volume Flow (AREA)
FI980988A 1998-05-04 1998-05-04 Ilmavirtauksen virtausanturin virtausvastus FI980988A (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI980988A FI980988A (fi) 1998-05-04 1998-05-04 Ilmavirtauksen virtausanturin virtausvastus
AU39341/99A AU3934199A (en) 1998-05-04 1999-05-04 Flow resistance of air flow flowtransducer
PCT/FI1999/000368 WO1999060343A1 (en) 1998-05-04 1999-05-04 Flow resistance of air flow flowtransducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI980988A FI980988A (fi) 1998-05-04 1998-05-04 Ilmavirtauksen virtausanturin virtausvastus

Publications (2)

Publication Number Publication Date
FI980988A0 FI980988A0 (fi) 1998-05-04
FI980988A true FI980988A (fi) 1999-11-05

Family

ID=8551650

Family Applications (1)

Application Number Title Priority Date Filing Date
FI980988A FI980988A (fi) 1998-05-04 1998-05-04 Ilmavirtauksen virtausanturin virtausvastus

Country Status (3)

Country Link
AU (1) AU3934199A (fi)
FI (1) FI980988A (fi)
WO (1) WO1999060343A1 (fi)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129587A (en) * 1960-10-11 1964-04-21 Honeywell Regulator Co Flow sensing device
DE1766974C3 (de) * 1968-08-22 1974-08-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen Atemrohr für Pneumotachograph«!
US3838598A (en) * 1969-03-28 1974-10-01 Brunswick Corp Capillary flow meter
US4040293A (en) * 1975-12-22 1977-08-09 Airflow Developments Limited Fluid flow measuring device
GB2123564A (en) * 1982-03-29 1984-02-01 Furness Controls Ltd Fluid flow measurement
BG44992A1 (fi) * 1987-06-16 1989-03-15 Jjordan Jj Bejazov
US4884460A (en) * 1988-12-01 1989-12-05 Northgate Research, Inc. Device for sensing air flow

Also Published As

Publication number Publication date
FI980988A0 (fi) 1998-05-04
AU3934199A (en) 1999-12-06
WO1999060343A1 (en) 1999-11-25

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