NO982074D0 - Method and instrument for level measurement - Google Patents

Method and instrument for level measurement

Info

Publication number
NO982074D0
NO982074D0 NO982074A NO982074A NO982074D0 NO 982074 D0 NO982074 D0 NO 982074D0 NO 982074 A NO982074 A NO 982074A NO 982074 A NO982074 A NO 982074A NO 982074 D0 NO982074 D0 NO 982074D0
Authority
NO
Norway
Prior art keywords
instrument
level measurement
measurement
level
Prior art date
Application number
NO982074A
Other languages
Norwegian (no)
Other versions
NO982074L (en
Inventor
Rolf Kahrs Hansen
Poul Arndt Andersen
Erik Eknes
Original Assignee
Omnitech As
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 Omnitech As filed Critical Omnitech As
Priority to NO982074A priority Critical patent/NO982074L/en
Publication of NO982074D0 publication Critical patent/NO982074D0/en
Priority to AU50721/99A priority patent/AU5072199A/en
Priority to PCT/NO1999/000145 priority patent/WO1999057527A1/en
Publication of NO982074L publication Critical patent/NO982074L/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/521—Constructional features
    • 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
    • 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
    • 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
    • G01F23/2968—Transducers specially adapted for acoustic level indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/527—Extracting wanted echo signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
NO982074A 1998-05-07 1998-05-07 Level measurement method and instrument NO982074L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO982074A NO982074L (en) 1998-05-07 1998-05-07 Level measurement method and instrument
AU50721/99A AU5072199A (en) 1998-05-07 1999-05-03 Method and instrument for level measurements
PCT/NO1999/000145 WO1999057527A1 (en) 1998-05-07 1999-05-03 Method and instrument for level measurements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO982074A NO982074L (en) 1998-05-07 1998-05-07 Level measurement method and instrument

Publications (2)

Publication Number Publication Date
NO982074D0 true NO982074D0 (en) 1998-05-07
NO982074L NO982074L (en) 1999-11-08

Family

ID=19902014

Family Applications (1)

Application Number Title Priority Date Filing Date
NO982074A NO982074L (en) 1998-05-07 1998-05-07 Level measurement method and instrument

Country Status (3)

Country Link
AU (1) AU5072199A (en)
NO (1) NO982074L (en)
WO (1) WO1999057527A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10061531B4 (en) * 2000-12-11 2007-04-05 Robert Seuffer Gmbh & Co. Kg Method and device for measuring a level of liquid in a container that changes as a result of operating consumption
DE10325953A1 (en) * 2003-06-07 2004-12-23 Jäger, Frank-Michael Ultrasonic process to detect interface levels between different liquid chemical, pharmaceutical or oil-based substances in single column
US9880131B2 (en) * 2010-07-15 2018-01-30 Dow Global Technologies Llc Liquid-liquid separator interface detection system and polymerization process utilizing the same
US9327221B2 (en) 2012-05-09 2016-05-03 Dow Global Technologies Llc Liquid-liquid separator interface detection system and polymerization process utilizing the same
US10323975B2 (en) 2016-12-29 2019-06-18 Kegsafe Llc Non-intrusive ultrasonic measuring of fluids in a beverage keg
US10254148B2 (en) 2017-06-16 2019-04-09 GM Global Technology Operations LLC Liquid level sensor and method
DE102018216624B4 (en) 2018-09-27 2022-12-08 Vitesco Technologies Germany Gmbh Method and device for determining the filling level and/or the quality of a fluid in a fluid container

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656384A (en) * 1984-10-25 1987-04-07 Siemens Aktiengesellschaft Ultrasonic detection sensor in hybrid structure with appertaining electronic circuit
EP0621944B1 (en) * 1991-07-25 1997-03-05 The Whitaker Corporation Liquid level sensor
GB9513267D0 (en) * 1995-06-29 1995-09-06 Whitaker Corp Ultrasonic liquid level detector
US5793705A (en) * 1996-09-18 1998-08-11 International Business Machines Corporation Ultrasonic liquid level gauge for tanks subject to movement and vibration

Also Published As

Publication number Publication date
WO1999057527A1 (en) 1999-11-11
AU5072199A (en) 1999-11-23
NO982074L (en) 1999-11-08

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application