NO962274D0 - Method and apparatus for detecting boundary layers - Google Patents

Method and apparatus for detecting boundary layers

Info

Publication number
NO962274D0
NO962274D0 NO962274A NO962274A NO962274D0 NO 962274 D0 NO962274 D0 NO 962274D0 NO 962274 A NO962274 A NO 962274A NO 962274 A NO962274 A NO 962274A NO 962274 D0 NO962274 D0 NO 962274D0
Authority
NO
Norway
Prior art keywords
boundary layers
detecting boundary
detecting
layers
boundary
Prior art date
Application number
NO962274A
Other languages
Norwegian (no)
Other versions
NO962274L (en
Inventor
Matti Nissinen
Original Assignee
Acutest 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 Acutest Oy filed Critical Acutest Oy
Publication of NO962274D0 publication Critical patent/NO962274D0/en
Publication of NO962274L publication Critical patent/NO962274L/en

Links

Classifications

    • 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
    • G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2962—Measuring transit time of reflected waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
    • 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
    • G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2961—Acoustic waves for discrete levels
    • 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
    • G01F23/0023—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 with a probe suspended by a wire or thread

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
NO962274A 1995-06-07 1996-06-03 Method and apparatus for detecting boundary layers NO962274L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI952784A FI97829C (en) 1995-06-07 1995-06-07 Measurement method and equipment for determining interfaces

Publications (2)

Publication Number Publication Date
NO962274D0 true NO962274D0 (en) 1996-06-03
NO962274L NO962274L (en) 1996-12-09

Family

ID=8543554

Family Applications (1)

Application Number Title Priority Date Filing Date
NO962274A NO962274L (en) 1995-06-07 1996-06-03 Method and apparatus for detecting boundary layers

Country Status (4)

Country Link
FI (1) FI97829C (en)
FR (1) FR2735228B1 (en)
GB (1) GB2301890A (en)
NO (1) NO962274L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054203A1 (en) * 2005-11-14 2007-05-16 Siemens Ag Device for determining the position of at least one phase boundary by evaluation of sound signals
US20070255458A1 (en) * 2006-04-28 2007-11-01 Haslem Keith R System and method for managing stratified liquids in storage tanks
WO2007142933A2 (en) * 2006-05-31 2007-12-13 Giraffe Liquid Management Systems, Inc. Liquid level detectors and systems for use
GB2472083A (en) * 2009-07-24 2011-01-26 Wayne Rudd Apparatus and methods for determining the location of an interface in a medium

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1361052A (en) * 1971-07-09 1974-07-24 Radun Controls Ltd Transducer devices
DE2508297A1 (en) * 1975-02-26 1976-09-09 Interatom ULTRASONIC LEVEL SENSOR FOR LIQUIDS AND THEIR APPLICATION
NO150532C (en) * 1981-05-22 1984-10-31 Bjoern R Hope DEVICE FOR LEVELS.
FR2540247B1 (en) * 1983-01-31 1985-09-27 Elf France METHOD AND APPARATUS FOR DETECTING CHANGES IN COMPOSITION WITHIN A MEDIUM USING ULTRASOUND
DE4011923A1 (en) * 1990-04-12 1991-10-17 Blohm & Voss Int METHOD FOR DETECTING PHASE INTERFACES OR LAYERS OF DIFFERENT IMMiscible LIQUIDS, SEPARATELY SEPARATING LIQUIDS
FR2661001A1 (en) * 1991-04-11 1991-10-18 Blohm & Voss Int Method for detecting boundary surfaces of immiscible liquid phases
CN1045658C (en) * 1991-07-29 1999-10-13 基·雷/森索尔有限公司 Time gate ultrasonic sensor and method
DE9215290U1 (en) * 1991-11-13 1993-03-18 ZF Hurth Bahntechnik GmbH, 80809 München Gear transmission

Also Published As

Publication number Publication date
GB9611346D0 (en) 1996-08-07
NO962274L (en) 1996-12-09
FI952784A0 (en) 1995-06-07
FI97829B (en) 1996-11-15
FI97829C (en) 1997-02-25
GB2301890A (en) 1996-12-18
FR2735228A1 (en) 1996-12-13
FR2735228B1 (en) 1997-10-31

Similar Documents

Publication Publication Date Title
NO963663D0 (en) Method and apparatus for measuring resistivity
NO980557D0 (en) Offshore apparatus and method for oil operations
NO971634D0 (en) Method and apparatus for measuring formation pressure
NO962443D0 (en) Apparatus and method for measuring formation density
NO975311D0 (en) Device and method for performing wellbore functions
NO974789D0 (en) Method and apparatus for measuring the characteristic size of a log
DE69633218D1 (en) Image reproduction method and apparatus
NO973266D0 (en) Apparatus for completing an underground well and associated method
NO971649D0 (en) Method and apparatus for characterizing suspensions
NO963707D0 (en) Method and apparatus for preventing agglomeration
NO964624L (en) Method and apparatus for removing a superstructure
DE19681292T1 (en) Engraving error detection device and method
DE69633319D1 (en) Image reproduction method and apparatus
DE69623096D1 (en) Exposure apparatus and method
DE69629790D1 (en) Image reproduction method and apparatus
NO961750L (en) Method and apparatus for making laminated films
DE69634129D1 (en) ABNORMALITY DETECTION APPARATUS AND METHOD
NO963610D0 (en) Method and device for remote leak detection
NO972364D0 (en) Apparatus and method for detecting changes in formations
NO972150D0 (en) METHOD AND APPARATUS FOR MEASURING ELECTROCOMUMUMUMINCENSION EMISSION
NO963004D0 (en) Method and apparatus for determining an oil blocking point
NO962274D0 (en) Method and apparatus for detecting boundary layers
NO992777L (en) Method and apparatus for signal processing
NO991789D0 (en) Method and apparatus for calculating correlation
ITMI940146A1 (en) APPARATUS AND METHOD FOR DETECTING PERFORATIONS