WO2002004897A3 - Method and apparatus for determining parameters of a flowing liquid - Google Patents

Method and apparatus for determining parameters of a flowing liquid Download PDF

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Publication number
WO2002004897A3
WO2002004897A3 PCT/IL2001/000635 IL0100635W WO0204897A3 WO 2002004897 A3 WO2002004897 A3 WO 2002004897A3 IL 0100635 W IL0100635 W IL 0100635W WO 0204897 A3 WO0204897 A3 WO 0204897A3
Authority
WO
WIPO (PCT)
Prior art keywords
flowing liquid
measuring
determining parameters
liquid
flow
Prior art date
Application number
PCT/IL2001/000635
Other languages
French (fr)
Other versions
WO2002004897A2 (en
Inventor
Aba Priev
Viktor Ponomarev
Armen Sarvazyan
Original Assignee
Ndt Instr Ltd
Aba Priev
Viktor Ponomarev
Armen Sarvazyan
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 Ndt Instr Ltd, Aba Priev, Viktor Ponomarev, Armen Sarvazyan filed Critical Ndt Instr Ltd
Priority to AU2001272724A priority Critical patent/AU2001272724A1/en
Priority to IL15385901A priority patent/IL153859A0/en
Priority to US10/332,474 priority patent/US20040123671A1/en
Publication of WO2002004897A2 publication Critical patent/WO2002004897A2/en
Publication of WO2002004897A3 publication Critical patent/WO2002004897A3/en

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
    • G01F1/007—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 measuring the level variations of storage tanks relative to the time
    • 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
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
    • G01F23/241—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid for discrete levels
    • G01F23/243—Schematic arrangements of probes combined with measuring circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/266—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/268—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors mounting arrangements of probes

Abstract

An apparatus for measuring liquid flow including at least one measuring cell (26) having at least one measuring slot (28) with at least one isolated electrode (32) and at least two non-isolated electrodes (34, 36), a device (56) for inducing flow fluctuations in the flowing liquid, and a measuring device used to obtain liquid properties from the flow fluctuations.
PCT/IL2001/000635 2000-07-10 2001-07-10 Method and apparatus for determining parameters of a flowing liquid WO2002004897A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2001272724A AU2001272724A1 (en) 2000-07-10 2001-07-10 Method and apparatus for determining parameters of a flowing liquid
IL15385901A IL153859A0 (en) 2000-07-10 2001-07-10 Method and apparatus for determining parameters of a flowing fluid
US10/332,474 US20040123671A1 (en) 2001-07-10 2001-07-10 Method and apparatus for determining parameters of a flowing liquid

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US21709200P 2000-07-10 2000-07-10
US21709100P 2000-07-10 2000-07-10
US60/217,091 2000-07-10
US60/217,092 2000-07-10

Publications (2)

Publication Number Publication Date
WO2002004897A2 WO2002004897A2 (en) 2002-01-17
WO2002004897A3 true WO2002004897A3 (en) 2002-05-16

Family

ID=26911607

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2001/000635 WO2002004897A2 (en) 2000-07-10 2001-07-10 Method and apparatus for determining parameters of a flowing liquid

Country Status (3)

Country Link
AU (1) AU2001272724A1 (en)
IL (1) IL153859A0 (en)
WO (1) WO2002004897A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020200866A1 (en) 2020-01-24 2021-07-29 Vega Grieshaber Kg Level measuring probe for simultaneous capacitive and conductive level measurement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5313833A (en) * 1991-05-28 1994-05-24 Bio-Melktechnik Hoefelmayr & Co. Milk flow meter
US5829381A (en) * 1994-02-28 1998-11-03 Gascoigne-Melotte B.V. Device for measuring the complex impedance of milk, and pulsator having such a device
US5877417A (en) * 1997-03-03 1999-03-02 Compucon Corporation Flow meter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5313833A (en) * 1991-05-28 1994-05-24 Bio-Melktechnik Hoefelmayr & Co. Milk flow meter
US5829381A (en) * 1994-02-28 1998-11-03 Gascoigne-Melotte B.V. Device for measuring the complex impedance of milk, and pulsator having such a device
US5877417A (en) * 1997-03-03 1999-03-02 Compucon Corporation Flow meter

Also Published As

Publication number Publication date
WO2002004897A2 (en) 2002-01-17
AU2001272724A1 (en) 2002-01-21
IL153859A0 (en) 2003-07-31

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