SE9803377L - Device for true level measurement in a tank - Google Patents

Device for true level measurement in a tank

Info

Publication number
SE9803377L
SE9803377L SE9803377A SE9803377A SE9803377L SE 9803377 L SE9803377 L SE 9803377L SE 9803377 A SE9803377 A SE 9803377A SE 9803377 A SE9803377 A SE 9803377A SE 9803377 L SE9803377 L SE 9803377L
Authority
SE
Sweden
Prior art keywords
medium
fixed structure
distance
instrument
measuring device
Prior art date
Application number
SE9803377A
Other languages
Swedish (sv)
Other versions
SE512510C2 (en
SE9803377D0 (en
Inventor
Lennart Haegg
Bo Wass
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 SE9803377A priority Critical patent/SE9803377L/en
Publication of SE9803377D0 publication Critical patent/SE9803377D0/en
Publication of SE512510C2 publication Critical patent/SE512510C2/en
Publication of SE9803377L publication Critical patent/SE9803377L/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
    • 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
    • G01F25/0061—

Landscapes

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

Abstract

An essentially upright and movable measuring device (8) has its top end located a given distance from the fixed structure supporting a measuring instrument (6) above the surface of the medium, and its bottom end is secured to the tank floor (3), preferably at the zero reference point (4). Movement of the fixed structure in the vertical direction is detected as a result of a sensor (10) recording the change in distance between fixed structure and measuring device. The recorded change in distance is used to compensate for the level measurement carried out by the instrument, so that a more accurate value for the level (14) of the medium in relation to the zero reference point is obtained. The measured level corresponds to the distance between the top surface of the medium and a zero reference in the tank floor, and the measuring device comprises a fixed structure positioned above the surface of the medium and integral with the tank floor. An instrument mounted in the fixed structure measures the distance between the instrument and the surface of the medium.
SE9803377A 1998-10-06 1998-10-06 Device for true level measurement in a tank SE9803377L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9803377A SE9803377L (en) 1998-10-06 1998-10-06 Device for true level measurement in a tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9803377A SE9803377L (en) 1998-10-06 1998-10-06 Device for true level measurement in a tank

Publications (3)

Publication Number Publication Date
SE9803377D0 SE9803377D0 (en) 1998-10-06
SE512510C2 SE512510C2 (en) 2000-03-27
SE9803377L true SE9803377L (en) 2000-03-27

Family

ID=20412828

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9803377A SE9803377L (en) 1998-10-06 1998-10-06 Device for true level measurement in a tank

Country Status (1)

Country Link
SE (1) SE9803377L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0300819D0 (en) * 2003-03-21 2003-03-21 Saab Marine Electronics System and method in a radar level gauging system
WO2004083791A1 (en) * 2003-03-21 2004-09-30 Saab Rosemount Tank Radar Ab System and method in a radar level gauging system
US8915133B2 (en) * 2012-09-24 2014-12-23 Rosemount Tank Radar Ab Arrangement and method for testing a level gauge system
US10234353B2 (en) * 2016-04-21 2019-03-19 Honeywell International Inc. Automatic pressure correction for level gauges in storage tanks

Also Published As

Publication number Publication date
SE512510C2 (en) 2000-03-27
SE9803377D0 (en) 1998-10-06

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Legal Events

Date Code Title Description
NUG Patent has lapsed