SE7810105L - Enligt ekoprincipen arbetande ultraljudsnivaomkopplare - Google Patents

Enligt ekoprincipen arbetande ultraljudsnivaomkopplare

Info

Publication number
SE7810105L
SE7810105L SE7810105A SE7810105A SE7810105L SE 7810105 L SE7810105 L SE 7810105L SE 7810105 A SE7810105 A SE 7810105A SE 7810105 A SE7810105 A SE 7810105A SE 7810105 L SE7810105 L SE 7810105L
Authority
SE
Sweden
Prior art keywords
eco
level switch
principle working
ultrasound level
working ultrasound
Prior art date
Application number
SE7810105A
Other languages
English (en)
Other versions
SE443233B (sv
Inventor
G Wetzel
Original Assignee
Endress Hauser Gmbh Co
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 Endress Hauser Gmbh Co filed Critical Endress Hauser Gmbh Co
Publication of SE7810105L publication Critical patent/SE7810105L/sv
Publication of SE443233B publication Critical patent/SE443233B/sv

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S367/00—Communications, electrical: acoustic wave systems and devices
    • Y10S367/908—Material level detection, e.g. liquid level

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
SE7810105A 1977-09-27 1978-09-26 Enligt ekoprincipen arbetande ultraljudsnivaomkopplare SE443233B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2743409A DE2743409C3 (de) 1977-09-27 1977-09-27 Ve rstärkeranordnung für einen nach dem Echoprinzip arbeitenden Ultraschall-Füllstandgrenzschalter

Publications (2)

Publication Number Publication Date
SE7810105L true SE7810105L (sv) 1979-03-28
SE443233B SE443233B (sv) 1986-02-17

Family

ID=6020001

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7810105A SE443233B (sv) 1977-09-27 1978-09-26 Enligt ekoprincipen arbetande ultraljudsnivaomkopplare

Country Status (9)

Country Link
US (1) US4202049A (sv)
JP (1) JPS5940275B2 (sv)
CH (1) CH634919A5 (sv)
DE (1) DE2743409C3 (sv)
FR (1) FR2404208A1 (sv)
GB (1) GB1599725A (sv)
IT (1) IT1098959B (sv)
NL (1) NL7809264A (sv)
SE (1) SE443233B (sv)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341116A (en) * 1980-03-06 1982-07-27 Baxter Travenol Laboratories, Inc. Liquid absence detector
US5155472A (en) * 1983-07-29 1992-10-13 Introtek International, Inc. Contact type liquid level sensing system
JPS614986A (ja) * 1984-06-20 1986-01-10 Nissan Motor Co Ltd 超音波距離測定装置
US4944335A (en) * 1984-12-20 1990-07-31 The Coca-Cola Company Automatic control system for filling beverage containers
DE3435989C2 (de) * 1984-10-01 1987-03-26 Nukem Gmbh, 6450 Hanau Verfahren zur Wanddickenmessung von Körpern mittels Ultraschallimpulsen und Vorrichtung zur Durchführung des Verfahrens
US4740726A (en) * 1986-07-21 1988-04-26 Nohken Inc. Vibrator-type level sensor
DE3835406A1 (de) * 1988-10-18 1990-04-19 Danfoss As Vorrichtung zum messen eines fuellstandes
DE4042575C2 (de) * 1989-10-17 1996-05-30 Mitsubishi Electric Corp Ultraschallsensor zur Hinderniserfassung
US5131271A (en) * 1990-04-16 1992-07-21 Magnetrol International, Inc. Ultrasonic level detector
US5192933A (en) * 1990-06-14 1993-03-09 Rodriguez Al W Field-adjustable ultrasonic detector
JP3008991B2 (ja) * 1991-02-14 2000-02-14 株式会社ノーケン 振動式レベル検出装置
US5394732A (en) * 1993-09-10 1995-03-07 Cobe Laboratories, Inc. Method and apparatus for ultrasonic detection of air bubbles
US5573041A (en) * 1994-08-01 1996-11-12 Electro-Pro, Inc. Dispenser control with ultrasonic position detection
DE19538331A1 (de) * 1995-10-14 1997-04-17 Sonotec Dr Zur Horst Meyer & M Verfahren und Vorrichtung zur Kontrolle des Eisstandes bei der Kaltwassererzeugung
DE19538680C2 (de) * 1995-10-17 1998-10-08 Endress Hauser Gmbh Co Anordnung zur Überwachung eines vorbestimmten Füllstands einer Flüssigkeit in einem Behälter
US6323441B1 (en) * 2000-03-10 2001-11-27 Honeywell International Inc. Ultrasonic distance measuring system for monitoring railroad car loads
US8353321B2 (en) * 2006-04-12 2013-01-15 Sensotech Inc. Method and system for short-range ultrasonic location sensing
US8033157B2 (en) 2007-10-01 2011-10-11 Baxter International Inc. Medical fluid air bubble detection apparatus and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2711531A (en) * 1951-01-15 1955-06-21 Gen Electric Automatic gain control circuit
BE659053A (sv) * 1964-01-30
FR1453956A (fr) * 1965-07-30 1966-07-22 British Petroleum Co Sonde ultrasonore à étages multiples pour la détection de niveaux de liquide prédéterminés
FR1435831A (fr) * 1964-11-25 1966-04-22 Realisations Ultrasoniques Sa Dispositif de mesure d'épaisseur ou de distance au moyen d'ultra-sons
US3456715A (en) * 1966-08-16 1969-07-22 Gen Dynamics Corp Apparatus for the measurement of levels of high temperature materials
US3656134A (en) * 1970-07-27 1972-04-11 Union Tank Car Co Liquid level detector
GB1377054A (en) * 1973-07-24 1974-12-11 Ford Motor Co Vehicle fuel level indicating systems

Also Published As

Publication number Publication date
NL7809264A (nl) 1979-03-29
FR2404208A1 (fr) 1979-04-20
GB1599725A (en) 1981-10-07
JPS5489656A (en) 1979-07-16
FR2404208B1 (sv) 1984-10-12
DE2743409B2 (de) 1979-12-20
JPS5940275B2 (ja) 1984-09-28
IT7828148A0 (it) 1978-09-27
US4202049A (en) 1980-05-06
DE2743409C3 (de) 1980-09-04
SE443233B (sv) 1986-02-17
DE2743409A1 (de) 1979-03-29
IT1098959B (it) 1985-09-18
CH634919A5 (de) 1983-02-28

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