FR2441837B3 - - Google Patents

Info

Publication number
FR2441837B3
FR2441837B3 FR7928086A FR7928086A FR2441837B3 FR 2441837 B3 FR2441837 B3 FR 2441837B3 FR 7928086 A FR7928086 A FR 7928086A FR 7928086 A FR7928086 A FR 7928086A FR 2441837 B3 FR2441837 B3 FR 2441837B3
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
FR7928086A
Other versions
FR2441837A1 (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.)
SMS Siemag AG
Original Assignee
Schloemann Siemag AG
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 Schloemann Siemag AG filed Critical Schloemann Siemag AG
Publication of FR2441837A1 publication Critical patent/FR2441837A1/fr
Application granted granted Critical
Publication of FR2441837B3 publication Critical patent/FR2441837B3/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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02836—Flow rate, liquid level

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)
  • Measuring Fluid Pressure (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Level Indicators Using A Float (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
FR7928086A 1978-11-20 1979-11-14 Colonne de detection de niveau et de commande pour accumulateurs aerohydrauliques Granted FR2441837A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782850238 DE2850238A1 (de) 1978-11-20 1978-11-20 Steuersaeule zur erfassung von fuellstandshoehen in druckfluessigkeitsbehaeltern von druckspeicheranlagen

Publications (2)

Publication Number Publication Date
FR2441837A1 FR2441837A1 (fr) 1980-06-13
FR2441837B3 true FR2441837B3 (fr) 1981-09-04

Family

ID=6055121

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7928086A Granted FR2441837A1 (fr) 1978-11-20 1979-11-14 Colonne de detection de niveau et de commande pour accumulateurs aerohydrauliques

Country Status (9)

Country Link
JP (1) JPS5574422A (fr)
BR (1) BR7907482A (fr)
DE (1) DE2850238A1 (fr)
ES (1) ES484972A1 (fr)
FR (1) FR2441837A1 (fr)
GB (1) GB2036325B (fr)
IN (1) IN153398B (fr)
IT (1) IT1126331B (fr)
SE (1) SE7908638L (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126342A (en) * 1982-09-06 1984-03-21 Innovative Tech Ltd Liquid level detector
GB2177510A (en) * 1985-07-01 1987-01-21 Partridge Wilson And Company L Detecting the presence or absence of a liquid
GB8828282D0 (en) * 1988-12-03 1989-01-05 Sensotect Ltd Fluid level monitor
US5438868A (en) * 1993-11-01 1995-08-08 Zevex, Inc. Noninvasive ultrasonic liquid level indicator
DE10159359A1 (de) * 2001-12-04 2003-06-12 Tetra Laval Holdings & Finance Vorrichtung zum Messen der Füllhöhe einer Flüssigkeit in einem abgeschlossenen Raum
NO344122B1 (en) * 2018-09-20 2019-09-09 4Subsea As Flooded Member Detection by means of ultrasound
CN113687437A (zh) * 2021-08-13 2021-11-23 美福特(徐州)数字工程有限公司 一种反循环钻机真空泵传感器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5026225A (fr) * 1973-07-10 1975-03-19

Also Published As

Publication number Publication date
BR7907482A (pt) 1980-08-05
GB2036325A (en) 1980-06-25
JPS5574422A (en) 1980-06-05
IT1126331B (it) 1986-05-21
IN153398B (fr) 1984-07-14
IT7927411A0 (it) 1979-11-19
ES484972A1 (es) 1980-06-16
GB2036325B (en) 1983-05-11
FR2441837A1 (fr) 1980-06-13
DE2850238A1 (de) 1980-05-22
SE7908638L (sv) 1980-05-21

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Legal Events

Date Code Title Description
ST Notification of lapse