BE701491A - - Google Patents

Info

Publication number
BE701491A
BE701491A BE701491DA BE701491A BE 701491 A BE701491 A BE 701491A BE 701491D A BE701491D A BE 701491DA BE 701491 A BE701491 A BE 701491A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE701491A publication Critical patent/BE701491A/xx

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
    • G01F23/2961—Acoustic waves for discrete levels
    • 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
    • G01F23/2965—Measuring attenuation of transmitted 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)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
BE701491D 1966-07-18 1967-07-18 BE701491A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56585466A 1966-07-18 1966-07-18

Publications (1)

Publication Number Publication Date
BE701491A true BE701491A (enrdf_load_stackoverflow) 1968-01-18

Family

ID=24260380

Family Applications (1)

Application Number Title Priority Date Filing Date
BE701491D BE701491A (enrdf_load_stackoverflow) 1966-07-18 1967-07-18

Country Status (5)

Country Link
JP (2) JPS5144417B1 (enrdf_load_stackoverflow)
BE (1) BE701491A (enrdf_load_stackoverflow)
DE (1) DE1648997B2 (enrdf_load_stackoverflow)
GB (1) GB1194694A (enrdf_load_stackoverflow)
NL (1) NL6709933A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2911366A1 (de) * 1979-03-23 1980-10-02 Licentia Gmbh Verfahren und anordnung zur ueberwachung des fuellstandes des salzvorrats in der wasserenthaertungseinrichtung von geschirrspuel- oder waschmaschinen
NO150532C (no) * 1981-05-22 1984-10-31 Bjoern R Hope Anordning ved nivaamaaler.
US4432231A (en) * 1982-06-28 1984-02-21 Baxter Travenol Laboratories, Inc. Ultrasonic level detector
US4679430A (en) * 1983-03-30 1987-07-14 United Kingdom Atomic Energy Authority Ultrasonic liquid interface detector
GB8520793D0 (en) * 1985-08-20 1985-09-25 Formula Systems Ltd Liquid level responsive apparatus

Also Published As

Publication number Publication date
DE1648997B2 (de) 1976-09-16
NL6709933A (enrdf_load_stackoverflow) 1968-01-19
GB1194694A (en) 1970-06-10
DE1648997A1 (de) 1971-06-16
JPS5427748B1 (enrdf_load_stackoverflow) 1979-09-12
JPS5144417B1 (enrdf_load_stackoverflow) 1976-11-29

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: NATIONAL SONICS CORP.

Effective date: 19870718