SE9904521L - Device for level measurement in tanks - Google Patents

Device for level measurement in tanks

Info

Publication number
SE9904521L
SE9904521L SE9904521A SE9904521A SE9904521L SE 9904521 L SE9904521 L SE 9904521L SE 9904521 A SE9904521 A SE 9904521A SE 9904521 A SE9904521 A SE 9904521A SE 9904521 L SE9904521 L SE 9904521L
Authority
SE
Sweden
Prior art keywords
liquid
gas
tank
microwaves
level
Prior art date
Application number
SE9904521A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9904521D0 (en
Inventor
Torbjoern Rydbergh
Original Assignee
Saab Marine Electronics
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 Saab Marine Electronics filed Critical Saab Marine Electronics
Priority to SE9904521A priority Critical patent/SE9904521L/en
Publication of SE9904521D0 publication Critical patent/SE9904521D0/en
Priority to AU20322/01A priority patent/AU2032201A/en
Priority to PCT/SE2000/002205 priority patent/WO2001042746A1/en
Publication of SE9904521L publication Critical patent/SE9904521L/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
    • G01F23/284—Electromagnetic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

A method and device for determining the level of a liquid (1) in a tank by means of a radar level-measuring device (8), which transmits microwaves downwards to the surface (9) of the liquid through a waveguide (6), in the form of a vertically arranged pipe in communication with the liquid (1) in the tank (2), and which after reflection of the microwaves from the liquid surface (9) receives the microwaves for determining, in a signal processing unit (10), the level of the liquid surface, where the liquid in the tank gives rise to a first gas that fills the space in the tank (2) above the liquid surface (9) with a gas which has a damping effect on microwaves, and where the waveguide (6) is, at least during level determination, kept filled with a second gas which is supplied to the waveguide (6) from a gas source. The invention even permits radar level measurements even of liquids that produce microwave-damping gas.
SE9904521A 1999-12-10 1999-12-10 Device for level measurement in tanks SE9904521L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9904521A SE9904521L (en) 1999-12-10 1999-12-10 Device for level measurement in tanks
AU20322/01A AU2032201A (en) 1999-12-10 2000-11-10 Method and device for level measurement in tanks
PCT/SE2000/002205 WO2001042746A1 (en) 1999-12-10 2000-11-10 Method and device for level measurement in tanks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9904521A SE9904521L (en) 1999-12-10 1999-12-10 Device for level measurement in tanks

Publications (2)

Publication Number Publication Date
SE9904521D0 SE9904521D0 (en) 1999-12-10
SE9904521L true SE9904521L (en) 2001-06-11

Family

ID=20418073

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9904521A SE9904521L (en) 1999-12-10 1999-12-10 Device for level measurement in tanks

Country Status (3)

Country Link
AU (1) AU2032201A (en)
SE (1) SE9904521L (en)
WO (1) WO2001042746A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926945B1 (en) * 2008-01-25 2010-02-26 Electricite De France OHMIC HEATING CELL WITH RADAR ELEMENT
WO2015042291A1 (en) * 2013-09-20 2015-03-26 Halliburton Energy Services, Inc. Quasioptical waveguides and systems
US10731457B2 (en) 2016-07-06 2020-08-04 Saudi Arabian Oil Company Wellbore analysis using TM01 and TE01 mode radar waves
DE102018221682A1 (en) * 2018-12-13 2020-06-18 Vega Grieshaber Kg Measuring arrangement for determining a level

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE461179B (en) * 1989-02-08 1990-01-15 Saab Marine Electronics DEVICE FOR Saturation of the level of a fluid present in a container
SE466519B (en) * 1989-04-10 1992-02-24 Saab Marine Electronics DEVICE FOR Saturation of the level of a fluid present in a container

Also Published As

Publication number Publication date
WO2001042746A1 (en) 2001-06-14
SE9904521D0 (en) 1999-12-10
AU2032201A (en) 2001-06-18

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Legal Events

Date Code Title Description
NAV Patent application has lapsed