IT7828148A0 - Interruttore limite di livello ad ultrasuoni lavorante secondo il principio dell'eco. - Google Patents

Interruttore limite di livello ad ultrasuoni lavorante secondo il principio dell'eco.

Info

Publication number
IT7828148A0
IT7828148A0 IT7828148A IT2814878A IT7828148A0 IT 7828148 A0 IT7828148 A0 IT 7828148A0 IT 7828148 A IT7828148 A IT 7828148A IT 2814878 A IT2814878 A IT 2814878A IT 7828148 A0 IT7828148 A0 IT 7828148A0
Authority
IT
Italy
Prior art keywords
limit switch
working according
level limit
ultrasonic level
switch working
Prior art date
Application number
IT7828148A
Other languages
English (en)
Other versions
IT1098959B (it
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 IT7828148A0 publication Critical patent/IT7828148A0/it
Application granted granted Critical
Publication of IT1098959B publication Critical patent/IT1098959B/it

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)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
IT28148/78A 1977-09-27 1978-09-27 Interruttore limite di livello ad ultrasuoni lavorante secondo il principio dell'eco IT1098959B (it)

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
IT7828148A0 true IT7828148A0 (it) 1978-09-27
IT1098959B IT1098959B (it) 1985-09-18

Family

ID=6020001

Family Applications (1)

Application Number Title Priority Date Filing Date
IT28148/78A IT1098959B (it) 1977-09-27 1978-09-27 Interruttore limite di livello ad ultrasuoni lavorante secondo il principio dell'eco

Country Status (9)

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

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 (it) * 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
SE7810105L (sv) 1979-03-28
DE2743409A1 (de) 1979-03-29
DE2743409C3 (de) 1980-09-04
GB1599725A (en) 1981-10-07
CH634919A5 (de) 1983-02-28
FR2404208A1 (fr) 1979-04-20
NL7809264A (nl) 1979-03-29
FR2404208B1 (it) 1984-10-12
US4202049A (en) 1980-05-06
SE443233B (sv) 1986-02-17
DE2743409B2 (de) 1979-12-20
IT1098959B (it) 1985-09-18
JPS5940275B2 (ja) 1984-09-28
JPS5489656A (en) 1979-07-16

Similar Documents

Publication Publication Date Title
IT7828148A0 (it) Interruttore limite di livello ad ultrasuoni lavorante secondo il principio dell'eco.
NL7900145A (nl) Slaggereedschap.
IT7824092A0 (it) Compresa di detersivo.
NO781628L (no) Flytende rensemiddel.
NO783469L (no) Flytende vaskemiddel.
BR7807135A (pt) Aparelho depurador por impacto
NL7712579A (nl) Ultrasone omzettereenheid.
IT7828661A0 (it) Composizioni detergenti.
NL7806612A (nl) Zeeplatform.
NL7901031A (nl) Wasmiddelen.
IT7825093A0 (it) Composizioni detergenti.
DK524279A (da) Rensende,bloedgoerende midler
DD129817A5 (de) Selbstfahrbare gleisbaumaschine,insbesondere schotterbett-reinigungsmaschine fuer weichen
IT7925977A0 (it) Trasduttori di spostamento.
NL7810975A (nl) Ultrasone windmeter.
IT7927894A0 (it) Trasduttore magnetoresistivo identificatore di posizione.
NL7902223A (nl) Discetteloopwerk.
IT7824309A0 (it) Composizione detergente.
NO153813C (no) Ferrittisk fe-mn legering for kryogene formaal.
IT7827674A0 (it) Attrezzo per l'impiego di unamacchina utensile.
IT7827117A0 (it) Composizione detergenti.
NL7704079A (nl) Volgens de puls-echomethode werkende ultrasone beeldinrichting.
NL7804276A (nl) Wasmiddelen.
IT8025852A0 (it) Perfezionamenti relativi alle unita' di catalizzatore.
IT7921406A0 (it) Perfezionamenti ad apparecchi di pulitura.