AU3682989A - Level indicator - Google Patents

Level indicator

Info

Publication number
AU3682989A
AU3682989A AU36829/89A AU3682989A AU3682989A AU 3682989 A AU3682989 A AU 3682989A AU 36829/89 A AU36829/89 A AU 36829/89A AU 3682989 A AU3682989 A AU 3682989A AU 3682989 A AU3682989 A AU 3682989A
Authority
AU
Australia
Prior art keywords
level indicator
indicator
level
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
AU36829/89A
Other versions
AU616768B2 (en
Inventor
Anton Dukart
Nicolas Grein
Klaus Muller
Erich Zabler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of AU3682989A publication Critical patent/AU3682989A/en
Application granted granted Critical
Publication of AU616768B2 publication Critical patent/AU616768B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
AU36829/89A 1988-07-07 1989-05-31 Level indicator Ceased AU616768B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3822994 1988-07-07
DE3822994A DE3822994A1 (en) 1988-07-07 1988-07-07 LEVEL INDICATOR

Publications (2)

Publication Number Publication Date
AU3682989A true AU3682989A (en) 1990-02-05
AU616768B2 AU616768B2 (en) 1991-11-07

Family

ID=6358149

Family Applications (1)

Application Number Title Priority Date Filing Date
AU36829/89A Ceased AU616768B2 (en) 1988-07-07 1989-05-31 Level indicator

Country Status (7)

Country Link
EP (1) EP0423143B1 (en)
JP (1) JPH03505919A (en)
KR (1) KR900702338A (en)
AU (1) AU616768B2 (en)
DE (2) DE3822994A1 (en)
ES (1) ES2013952A6 (en)
WO (1) WO1990000726A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19830442B4 (en) * 1998-07-08 2004-04-29 Forschungszentrum Rossendorf E.V. Arrangement for acoustic volume determination
DE10207278B4 (en) * 2002-02-21 2007-03-01 Robert Bosch Gmbh Method for level determination and level measuring device
DE102005013269A1 (en) * 2005-03-22 2006-09-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for determining the liquid level of a liquid phase via an ultrasonic transit time measurement
DE102010014572A1 (en) * 2010-04-10 2011-10-13 Bayerische Motoren Werke Aktiengesellschaft Device for detecting lubricant level for internal combustion engine, comprises lubricant tub, in which oscillating element is inserted into internal volume of lubricant tub, whose oscillations are changed by piezoelectric element

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1595194A (en) * 1977-09-13 1981-08-12 Marconi Co Ltd Liquid level sensing device
AU543420B2 (en) * 1981-07-22 1985-04-18 Marconi Company Limited, The Liquid level measurement
FR2596515B1 (en) * 1986-03-28 1992-07-03 Univ Paris Curie LIQUID LEVEL SENSOR WITH GUIDED ELASTIC WAVES
DE3619678A1 (en) * 1986-06-11 1987-12-17 Eberhard Hermann LEVEL CONTROL UNIT

Also Published As

Publication number Publication date
DE58905288D1 (en) 1993-09-16
EP0423143A1 (en) 1991-04-24
AU616768B2 (en) 1991-11-07
EP0423143B1 (en) 1993-08-11
WO1990000726A1 (en) 1990-01-25
ES2013952A6 (en) 1990-06-01
JPH03505919A (en) 1991-12-19
KR900702338A (en) 1990-12-06
DE3822994A1 (en) 1990-01-11

Similar Documents

Publication Publication Date Title
AU2003288A (en) Capacitance - type material level indicator
AU5275693A (en) Level indicator
AU2864489A (en) 16-dehydro-vitamin d3-derivatives
AU3842389A (en) Indicator for fire extinghishers
AU3163389A (en) 5-amino-1-phenylpyrazoles
AU1540488A (en) Spirit level
AU3234289A (en) Co-dispenser
AU3334389A (en) Rutheniumcomplex-compounds
AU2429588A (en) Level indicator
AU3300089A (en) Triazoloazines
AU3315089A (en) 2-substituted-2-cyclopentenones
AU3725489A (en) Dispenser with indicator
AU2663684A (en) Level indicator
AU3682989A (en) Level indicator
AU4185489A (en) An indicator system
AU3508989A (en) Des-17-histidine-calcitonin
AU3274189A (en) Probes
AU2508688A (en) Yacht-hull
GB8827998D0 (en) Indicator
AU3424589A (en) Level
AU2961889A (en) Benzoylphenylureas
AU2895089A (en) Naphthothiazepinones
GB8907000D0 (en) Plural-axis alignment indicator
GB8814512D0 (en) Indicator system
AU2063888A (en) Bedcloth