WO1997046853A3 - Method for measurement of flow velocity or diffusivity, microsensor and application of such microsensor - Google Patents

Method for measurement of flow velocity or diffusivity, microsensor and application of such microsensor Download PDF

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Publication number
WO1997046853A3
WO1997046853A3 PCT/DK1997/000250 DK9700250W WO9746853A3 WO 1997046853 A3 WO1997046853 A3 WO 1997046853A3 DK 9700250 W DK9700250 W DK 9700250W WO 9746853 A3 WO9746853 A3 WO 9746853A3
Authority
WO
WIPO (PCT)
Prior art keywords
microsensor
mouth
diffusivity
flow velocity
measurement
Prior art date
Application number
PCT/DK1997/000250
Other languages
French (fr)
Other versions
WO1997046853A2 (en
Inventor
Niels Peter Revsbech
Lars Peter Nielsen
Ole Pedersen
Jens Kristian Gundersen
Original Assignee
Unisense
Niels Peter Revsbech
Lars Peter Nielsen
Ole Pedersen
Jens Kristian Gundersen
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 Unisense, Niels Peter Revsbech, Lars Peter Nielsen, Ole Pedersen, Jens Kristian Gundersen filed Critical Unisense
Priority to US09/171,047 priority Critical patent/US6234004B1/en
Priority to AU30905/97A priority patent/AU3090597A/en
Priority to EP97925916A priority patent/EP0902881A2/en
Priority to JP10500113A priority patent/JP2000514550A/en
Publication of WO1997046853A2 publication Critical patent/WO1997046853A2/en
Publication of WO1997046853A3 publication Critical patent/WO1997046853A3/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
    • G01F1/05—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
    • 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
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Volume Flow (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

The invention relates to a method and a microsensor for measurement of transport coefficients like diffusivity or flow velocity. The microsensor has a reservoir (2) provided with a mouth (3) and a transducer (1). The transducer has a tip (6) placed in the mouth, which can be provided with a membrane or insert (4). The reservoir contains one or more gasses or one or more liquid-dissolved substances intended for the diffusion through the mouth into an area or field (5) of a medium outside the mouth of the reservoir. The transducer measures the partial pressure of the gas or the concentration of the liquid-dissolved substance in the mouth, whereby transport coefficients of diffusivity or flow velocity are determined. Preferably, the gradient of the partial pressure or the concentration is determined.
PCT/DK1997/000250 1996-06-06 1997-06-04 Method for measurement of flow velocity or diffusivity, microsensor and application of such microsensor WO1997046853A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US09/171,047 US6234004B1 (en) 1996-06-06 1997-06-04 Method for measurement of flow velocity or diffusivity, microsensor and application of such microsensor
AU30905/97A AU3090597A (en) 1996-06-06 1997-06-04 Method for measurement of flow velocity or diffusivity, microsensor and application of such microsensor
EP97925916A EP0902881A2 (en) 1996-06-06 1997-06-04 Method for measurement of flow velocity or diffusivity, microsensor and application of such microsensor
JP10500113A JP2000514550A (en) 1996-06-06 1997-06-04 Flow velocity or diffusivity measurement methods, microsensors and microsensor applications

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK0633/96 1996-06-06
DK199600633A DK174312B1 (en) 1996-06-06 1996-06-06 Method for measuring flow rate and diffusivity, microsensor for use in the method and use of such microsensor

Publications (2)

Publication Number Publication Date
WO1997046853A2 WO1997046853A2 (en) 1997-12-11
WO1997046853A3 true WO1997046853A3 (en) 1998-01-08

Family

ID=8095798

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1997/000250 WO1997046853A2 (en) 1996-06-06 1997-06-04 Method for measurement of flow velocity or diffusivity, microsensor and application of such microsensor

Country Status (6)

Country Link
US (1) US6234004B1 (en)
EP (1) EP0902881A2 (en)
JP (1) JP2000514550A (en)
AU (1) AU3090597A (en)
DK (1) DK174312B1 (en)
WO (1) WO1997046853A2 (en)

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EP1151272B1 (en) * 1998-11-16 2009-09-30 California Institute of Technology Simultaneous determination of equilibrium and kinetic properties
US6631333B1 (en) * 1999-05-10 2003-10-07 California Institute Of Technology Methods for remote characterization of an odor
EP1192454B1 (en) 1999-05-10 2006-03-01 California Institute of Technology Use of spatiotemporal response behavior in sensor arrays to detect analytes in fluids
US7122152B2 (en) * 1999-05-10 2006-10-17 University Of Florida Spatiotemporal and geometric optimization of sensor arrays for detecting analytes fluids
US6890715B1 (en) * 1999-08-18 2005-05-10 The California Institute Of Technology Sensors of conducting and insulating composites
ATE313293T1 (en) * 1999-10-04 2006-01-15 Lars Riis Damgaard SENSOR FOR MEASURING BLOOD FLOW OF TISSUE
US6401547B1 (en) * 1999-10-29 2002-06-11 The University Of Florida Device and method for measuring fluid and solute fluxes in flow systems
US6840935B2 (en) * 2000-08-09 2005-01-11 Bekl Corporation Gynecological ablation procedure and system using an ablation needle
FR2827960B1 (en) * 2001-07-26 2004-12-24 Inst Francais Du Petrole METHOD FOR QUANTITATIVE MONITORING OF A GAS INJECTED IN A TANK, ESPECIALLY IN A NATURAL ENVIRONMENT
EP1455643B1 (en) * 2001-12-21 2008-06-25 Unisense A/S Multifibre sensor for measuring perfusion
EP1527326B1 (en) 2002-05-15 2019-05-01 Aarhus Universitet Sampling device and method for measuring fluid flow and solute mass transport
US20050150778A1 (en) * 2002-11-18 2005-07-14 Lewis Nathan S. Use of basic polymers in carbon black composite vapor detectors to obtain enhanced sensitivity and classification performance for volatile fatty acids
US7284448B2 (en) 2004-11-16 2007-10-23 University Of Florida Research Foundation, Inc. Device and method for passively measuring fluid and target chemical mass fluxes in natural and constructed non-porous fluid flow system
DE112014002205T5 (en) * 2013-05-24 2016-02-25 Medyria Ag Flow sensor assembly and method of using a flow sensor assembly
CN105848624B (en) 2013-10-24 2018-04-10 Bsn医疗有限公司 Immersion system
US10543293B2 (en) 2013-11-07 2020-01-28 Bsn Medical Gmbh Medical dressing
AU2016256577B2 (en) 2015-04-29 2019-04-04 Bsn Medical Gmbh Medical bathing device
EP3246050A1 (en) 2016-05-17 2017-11-22 BSN medical GmbH Wound or skin patch
EP3463549B1 (en) 2016-06-03 2023-08-16 Advanced Instruments, LLC Plug for osmometry sample cup
DE102016221494A1 (en) 2016-11-02 2018-05-03 Bsn Medical Gmbh Debridement device
WO2020146106A1 (en) * 2019-01-09 2020-07-16 California Institute Of Technology Implantable micro-sensor to quantify dissolved inert gas
CN111766181B (en) * 2020-06-29 2023-05-12 东北电力大学 In-situ aquatic ecological nutrient salt sediment-overlying water interface migration and transformation simulation system

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US4501156A (en) * 1981-07-17 1985-02-26 Brennstoffinstitut Freiberg Method of and device for measuring a mass stream of finely divided fine-grained solid fuels
US5207227A (en) * 1990-03-02 1993-05-04 Powers Alexandros D Multiprobes with thermal diffusion flow monitor
US5339694A (en) * 1993-05-25 1994-08-23 The United States Of America As Represented By The United States Department Of Energy Monitoring probe for groundwater flow

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US4501156A (en) * 1981-07-17 1985-02-26 Brennstoffinstitut Freiberg Method of and device for measuring a mass stream of finely divided fine-grained solid fuels
US5207227A (en) * 1990-03-02 1993-05-04 Powers Alexandros D Multiprobes with thermal diffusion flow monitor
US5339694A (en) * 1993-05-25 1994-08-23 The United States Of America As Represented By The United States Department Of Energy Monitoring probe for groundwater flow

Also Published As

Publication number Publication date
DK174312B1 (en) 2002-12-02
JP2000514550A (en) 2000-10-31
US6234004B1 (en) 2001-05-22
WO1997046853A2 (en) 1997-12-11
DK63396A (en) 1997-12-07
EP0902881A2 (en) 1999-03-24
AU3090597A (en) 1998-01-05

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