FR2325028B3 - - Google Patents

Info

Publication number
FR2325028B3
FR2325028B3 FR7528573A FR7528573A FR2325028B3 FR 2325028 B3 FR2325028 B3 FR 2325028B3 FR 7528573 A FR7528573 A FR 7528573A FR 7528573 A FR7528573 A FR 7528573A FR 2325028 B3 FR2325028 B3 FR 2325028B3
Authority
FR
France
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.)
Expired
Application number
FR7528573A
Other languages
French (fr)
Other versions
FR2325028A1 (fr
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.)
ULTRAFLUX
Original Assignee
ULTRAFLUX
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 ULTRAFLUX filed Critical ULTRAFLUX
Priority to FR7528573A priority Critical patent/FR2325028A1/fr
Publication of FR2325028A1 publication Critical patent/FR2325028A1/fr
Application granted granted Critical
Publication of FR2325028B3 publication Critical patent/FR2325028B3/fr
Granted 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
    • G01F23/296—Acoustic waves
    • G01F23/2965—Measuring attenuation of transmitted waves
    • 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

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)
FR7528573A 1975-09-18 1975-09-18 Dispositif de detection, par emploi de signaux acoustiques, de la presence d'un liquide a un certain niveau a travers la paroi d'un reservoir Granted FR2325028A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7528573A FR2325028A1 (fr) 1975-09-18 1975-09-18 Dispositif de detection, par emploi de signaux acoustiques, de la presence d'un liquide a un certain niveau a travers la paroi d'un reservoir

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7528573A FR2325028A1 (fr) 1975-09-18 1975-09-18 Dispositif de detection, par emploi de signaux acoustiques, de la presence d'un liquide a un certain niveau a travers la paroi d'un reservoir

Publications (2)

Publication Number Publication Date
FR2325028A1 FR2325028A1 (fr) 1977-04-15
FR2325028B3 true FR2325028B3 (2) 1978-05-05

Family

ID=9160125

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7528573A Granted FR2325028A1 (fr) 1975-09-18 1975-09-18 Dispositif de detection, par emploi de signaux acoustiques, de la presence d'un liquide a un certain niveau a travers la paroi d'un reservoir

Country Status (1)

Country Link
FR (1) FR2325028A1 (2)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2072458B (en) * 1980-03-03 1984-01-04 C Tape Developments Ltd Improvements in electroacoustic tranducers
GB2094977B (en) * 1981-03-06 1984-08-08 British Gas Corp Detecting flooding of a structure

Also Published As

Publication number Publication date
FR2325028A1 (fr) 1977-04-15

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