IT1089038B - LEVEL DETECTOR DEVICE OF A MATERIAL IN A CONTAINER - Google Patents

LEVEL DETECTOR DEVICE OF A MATERIAL IN A CONTAINER

Info

Publication number
IT1089038B
IT1089038B IT2997477A IT2997477A IT1089038B IT 1089038 B IT1089038 B IT 1089038B IT 2997477 A IT2997477 A IT 2997477A IT 2997477 A IT2997477 A IT 2997477A IT 1089038 B IT1089038 B IT 1089038B
Authority
IT
Italy
Prior art keywords
container
level detector
detector device
level
detector
Prior art date
Application number
IT2997477A
Other languages
Italian (it)
Original Assignee
Kkf Corp
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 Kkf Corp filed Critical Kkf Corp
Application granted granted Critical
Publication of IT1089038B publication Critical patent/IT1089038B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/036—Analysing fluids by measuring frequency or resonance of acoustic 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
    • G01F23/2966—Acoustic waves making use of acoustical resonance or standing waves
    • G01F23/2967—Acoustic waves making use of acoustical resonance or standing waves for discrete levels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H13/00—Measuring resonant frequency
    • 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
    • G01N2291/025—Change of phase or condition
    • G01N2291/0256—Adsorption, desorption, surface mass change, e.g. on biosensors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Measuring Fluid Pressure (AREA)
  • Geophysics And Detection Of Objects (AREA)
IT2997477A 1976-12-09 1977-11-24 LEVEL DETECTOR DEVICE OF A MATERIAL IN A CONTAINER IT1089038B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74913276A 1976-12-09 1976-12-09

Publications (1)

Publication Number Publication Date
IT1089038B true IT1089038B (en) 1985-06-10

Family

ID=25012398

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2997477A IT1089038B (en) 1976-12-09 1977-11-24 LEVEL DETECTOR DEVICE OF A MATERIAL IN A CONTAINER

Country Status (4)

Country Link
JP (1) JPS5372650A (en)
DE (1) DE2749077C2 (en)
GB (1) GB1581291A (en)
IT (1) IT1089038B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55114981A (en) * 1979-02-28 1980-09-04 Tdk Corp Object detection method and its unit
JPS55125581U (en) * 1979-03-01 1980-09-05
JPS6227893Y2 (en) * 1979-03-16 1987-07-17
JPS55133369U (en) * 1979-03-16 1980-09-20
JPS57199881U (en) * 1981-06-17 1982-12-18
GB2245736B (en) * 1990-05-30 1994-07-20 Hydraulics Res Ltd Monitoring a bed underlying water
CH683375A5 (en) * 1991-10-01 1994-02-28 Vibro Meter Ag Detecting presence, level or condition of fluid - using evaluation circuit to register frequency of diaphragm inserted flush into wall of vessel
EP0762088A3 (en) * 1995-09-11 1997-11-05 Georg Fischer Rohrleitungssysteme AG Method and device for detecting critical level for fluids and bulk materials
US6044694A (en) * 1996-08-28 2000-04-04 Videojet Systems International, Inc. Resonator sensors employing piezoelectric benders for fluid property sensing
DE59712748D1 (en) * 1997-04-30 2006-11-23 Endress & Hauser Gmbh & Co Kg Device for detecting and / or monitoring a predetermined level in a container
US5844491A (en) * 1997-04-30 1998-12-01 Endress + Hauser Gmbh + Co. Apparatus for establishing and/or monitoring a predetermined filling level in a container
DE10050299A1 (en) * 2000-10-10 2002-04-11 Endress Hauser Gmbh Co Medium viscosity determination and monitoring arrangement has stimulation and reception unit, which excites vibrating unit and receives vibrations of vibrating unit for viscosity determination
DE102012100728A1 (en) * 2012-01-30 2013-08-01 Endress + Hauser Gmbh + Co. Kg Device for determining and / or monitoring at least one process variable
CN102645465B (en) * 2012-04-23 2015-04-08 宁波大学 Electrochemiluminescence analysis and detection device with interference-free precise self-cleaning mechanism

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3010318A (en) * 1959-04-02 1961-11-28 Charles E Mongan Method and apparatus for measuring liquid level
US3379901A (en) * 1965-01-08 1968-04-23 James R. Richards Fetal heart transducer and method of manufacture
DE1773815C3 (en) * 1968-07-10 1984-05-30 Endress U. Hauser Gmbh U. Co, 7867 Maulburg Device for determining when a predetermined fill level has been reached in a container
GB1361052A (en) * 1971-07-09 1974-07-24 Radun Controls Ltd Transducer devices

Also Published As

Publication number Publication date
DE2749077A1 (en) 1978-06-15
DE2749077C2 (en) 1986-12-04
JPS5372650A (en) 1978-06-28
GB1581291A (en) 1980-12-10

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