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SE0302709L - Device for measuring fluid level - Google Patents

Device for measuring fluid level

Info

Publication number
SE0302709L
SE0302709L SE0302709A SE0302709A SE0302709L SE 0302709 L SE0302709 L SE 0302709L SE 0302709 A SE0302709 A SE 0302709A SE 0302709 A SE0302709 A SE 0302709A SE 0302709 L SE0302709 L SE 0302709L
Authority
SE
Sweden
Prior art keywords
fluid level
measuring fluid
liquid
waveguide
liquid level
Prior art date
Application number
SE0302709A
Other languages
Swedish (sv)
Other versions
SE527128C2 (en
SE0302709D0 (en
Inventor
Jan Bostroem
Original Assignee
Axsensor Ab
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 Axsensor Ab filed Critical Axsensor Ab
Priority to SE0302709A priority Critical patent/SE527128C2/en
Publication of SE0302709D0 publication Critical patent/SE0302709D0/en
Priority to DE602004014631T priority patent/DE602004014631D1/en
Priority to EP08158367.6A priority patent/EP1962066B1/en
Priority to JP2006535312A priority patent/JP4689617B2/en
Priority to PCT/SE2004/001483 priority patent/WO2005038415A1/en
Priority to CN2008101738332A priority patent/CN101458113B/en
Priority to US10/575,896 priority patent/US7571645B2/en
Priority to PL04775555T priority patent/PL1676102T3/en
Priority to KR1020067009438A priority patent/KR101169103B1/en
Priority to ES08158367.6T priority patent/ES2569212T3/en
Priority to ES04775555T priority patent/ES2308244T3/en
Priority to AT04775555T priority patent/ATE399309T1/en
Priority to EP04775555A priority patent/EP1676102B1/en
Publication of SE0302709L publication Critical patent/SE0302709L/en
Publication of SE527128C2 publication Critical patent/SE527128C2/en
Priority to US12/453,327 priority patent/US7856876B2/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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (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 waveguide (12) is connected to transducer (14) provided outside liquid (16) for transmitting and receiving acoustic signals and is extended into liquid. A feeding unit supplies the fluid originating from a tank (18) into a portion of the waveguide located above a liquid level. - An INDEPENDENT CLAIM is also included for liquid level measurement method.
SE0302709A 2003-10-15 2003-10-15 Acoustic liquid level measurement device with gas composition compensation property for fuel tank in car, has feeding unit to supply fluid originating from tank into portion of waveguide located above liquid level SE527128C2 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
SE0302709A SE527128C2 (en) 2003-10-15 2003-10-15 Acoustic liquid level measurement device with gas composition compensation property for fuel tank in car, has feeding unit to supply fluid originating from tank into portion of waveguide located above liquid level
EP04775555A EP1676102B1 (en) 2003-10-15 2004-10-15 Fluid level measurement device
US10/575,896 US7571645B2 (en) 2003-10-15 2004-10-15 Fluid level measurement device
KR1020067009438A KR101169103B1 (en) 2003-10-15 2004-10-15 Fluid level measurement device
JP2006535312A JP4689617B2 (en) 2003-10-15 2004-10-15 Fluid surface height measuring device
PCT/SE2004/001483 WO2005038415A1 (en) 2003-10-15 2004-10-15 Fluid level measurement device
CN2008101738332A CN101458113B (en) 2003-10-15 2004-10-15 Fluid level measurement device
DE602004014631T DE602004014631D1 (en) 2003-10-15 2004-10-15 MEASURING DEVICE FOR FLUID LEVEL
PL04775555T PL1676102T3 (en) 2003-10-15 2004-10-15 Fluid level measurement device
EP08158367.6A EP1962066B1 (en) 2003-10-15 2004-10-15 Fluid level measurement device
ES08158367.6T ES2569212T3 (en) 2003-10-15 2004-10-15 Fluid level measuring device
ES04775555T ES2308244T3 (en) 2003-10-15 2004-10-15 FLUID LEVEL MEASUREMENT DEVICE.
AT04775555T ATE399309T1 (en) 2003-10-15 2004-10-15 FLUID LEVEL MEASURING DEVICE
US12/453,327 US7856876B2 (en) 2003-10-15 2009-05-07 Fluid level measurement device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0302709A SE527128C2 (en) 2003-10-15 2003-10-15 Acoustic liquid level measurement device with gas composition compensation property for fuel tank in car, has feeding unit to supply fluid originating from tank into portion of waveguide located above liquid level

Publications (3)

Publication Number Publication Date
SE0302709D0 SE0302709D0 (en) 2003-10-15
SE0302709L true SE0302709L (en) 2005-06-13
SE527128C2 SE527128C2 (en) 2005-12-27

Family

ID=29398727

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0302709A SE527128C2 (en) 2003-10-15 2003-10-15 Acoustic liquid level measurement device with gas composition compensation property for fuel tank in car, has feeding unit to supply fluid originating from tank into portion of waveguide located above liquid level

Country Status (2)

Country Link
CN (1) CN101458113B (en)
SE (1) SE527128C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012005281A1 (en) 2012-03-16 2013-09-19 Emitec France S.A.S Feed unit with level sensor for a liquid additive

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4909080A (en) * 1987-10-31 1990-03-20 Toyoda Gosei Co., Ltd. Ultrasonic level gauge
US5319973A (en) * 1993-02-02 1994-06-14 Caterpillar Inc. Ultrasonic fuel level sensing device
US5471872A (en) * 1994-01-07 1995-12-05 Semitool, Inc. Acoustic liquid level measuring apparatus
US6360599B1 (en) * 1999-08-25 2002-03-26 National Institute Of Ocean Technology Department Of Ocean Development Govenment Of India Device for measuring liquid level preferably measuring tide level in sea

Also Published As

Publication number Publication date
SE527128C2 (en) 2005-12-27
SE0302709D0 (en) 2003-10-15
CN101458113A (en) 2009-06-17
CN101458113B (en) 2012-07-18

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