CA2281455A1 - Apparatus for establishing and/or monitoring a predetermined filling level in a container - Google Patents

Apparatus for establishing and/or monitoring a predetermined filling level in a container Download PDF

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Publication number
CA2281455A1
CA2281455A1 CA002281455A CA2281455A CA2281455A1 CA 2281455 A1 CA2281455 A1 CA 2281455A1 CA 002281455 A CA002281455 A CA 002281455A CA 2281455 A CA2281455 A CA 2281455A CA 2281455 A1 CA2281455 A1 CA 2281455A1
Authority
CA
Canada
Prior art keywords
container
establishing
monitoring
oscillating element
filling level
Prior art date
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.)
Granted
Application number
CA002281455A
Other languages
French (fr)
Other versions
CA2281455C (en
Inventor
Sergej Lopatin
Helmut Pfeiffer
Alexander Muller
Volker Dreyer
Wolfgang Brutschin
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.)
Endress and Hauser SE and Co KG
Original Assignee
Endress and Hauser SE and Co KG
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 and Hauser SE and Co KG filed Critical Endress and Hauser SE and Co KG
Publication of CA2281455A1 publication Critical patent/CA2281455A1/en
Application granted granted Critical
Publication of CA2281455C publication Critical patent/CA2281455C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01F23/2966—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

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)

Abstract

An apparatus for establishing and/or monitoring a predetermined filling level in a container is described, which apparatus can be used in a wide range of applications, that is to say in many different media, which apparatus comprises: a housing (1), an oscillating element projecting into the container, a diaphragm (5), which is fixedly clamped into the housing (1) at its edge and to which the oscillating element is fastened, and an electromechanical transducer for exciting the diaphragm (5) to produce oscillations in dependence on a transmission signal (S) present at the transducer and for receiving and converting oscillations thereof into an electrical reception signal (E), in which a percentage interval between a resonant frequency f r and an antiresonant frequency far referring to the resonant frequency f r exceeds 20% when the oscillating element oscillates in air.
CA002281455A 1998-09-09 1999-09-08 Apparatus for establishing and/or monitoring a predetermined filling level in a container Expired - Fee Related CA2281455C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98117077A EP0985916B1 (en) 1998-09-09 1998-09-09 Device for detecting and/or monitoring a predetermined level in a container
EP98117077.2 1998-09-09

Publications (2)

Publication Number Publication Date
CA2281455A1 true CA2281455A1 (en) 2000-03-09
CA2281455C CA2281455C (en) 2002-02-05

Family

ID=8232599

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002281455A Expired - Fee Related CA2281455C (en) 1998-09-09 1999-09-08 Apparatus for establishing and/or monitoring a predetermined filling level in a container

Country Status (5)

Country Link
EP (1) EP0985916B1 (en)
JP (1) JP3217770B2 (en)
CA (1) CA2281455C (en)
DE (1) DE59814061D1 (en)
HU (1) HU223359B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101517382B (en) * 2006-07-19 2011-11-16 恩德莱斯和豪瑟尔两合公司 System for determining and/or monitoring a process quantity of a medium
WO2018015157A1 (en) * 2016-07-21 2018-01-25 Vega Grieshaber Kg Vibration sensor and method for optimising a piezoelectric drive

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6799820B1 (en) * 1999-05-20 2004-10-05 Seiko Epson Corporation Liquid container having a liquid detecting device
DE10022891A1 (en) * 2000-05-10 2001-11-15 Endress Hauser Gmbh Co Appliance for determining and/or monitoring filling level of liquids in container based on oscillating prongs induced to oscillate by piezoelectric membrane
DE10023302C2 (en) * 2000-05-15 2003-11-13 Grieshaber Vega Kg Piezoelectric excitable vibrating element
DE10161071A1 (en) 2001-12-12 2003-06-18 Endress & Hauser Gmbh & Co Kg Field electronic unit for process measurement technology in which a measurement sensor is provided with digital signal processing and control electronics to improve measurement accuracy and sensor reliability
DE10203461A1 (en) * 2002-01-28 2003-08-14 Grieshaber Vega Kg Vibration level sensor
DE10344741A1 (en) 2003-09-25 2005-04-14 Endress + Hauser Gmbh + Co. Kg Sound or ultrasonic transducer
DE102004036359B4 (en) * 2004-04-19 2008-11-06 Uwt Gmbh Method for determining the safety of a liquid level measurement carried out with a vibrating probe in a container
JP2006029918A (en) * 2004-07-14 2006-02-02 Seiko Epson Corp Liquid detecting method and system
DE102009028022A1 (en) * 2009-07-27 2011-02-03 Endress + Hauser Gmbh + Co. Kg Method for determining and / or monitoring at least one physical process variable of a medium
DE102011089010A1 (en) 2011-12-19 2013-06-20 Endress + Hauser Wetzer Gmbh + Co Kg Vibration probe for generating ultrasonic vibrations in apparatus of vibration system for determining or monitoring of fill level of medium in container, has reference element that undergoes temperature-dependent phase transition
DE102012102589A1 (en) 2012-03-26 2013-09-26 Endress + Hauser Gmbh + Co. Kg Device for monitoring a predetermined level
DE102012112577A1 (en) 2012-12-18 2014-06-18 Endress + Hauser Wetzer Gmbh + Co Kg Device for determining and / or monitoring a process variable
DE102012112576A1 (en) 2012-12-18 2014-06-18 Endress + Hauser Wetzer Gmbh + Co Kg Device for determining and / or monitoring a process variable
CN113405632A (en) * 2013-04-29 2021-09-17 高准公司 Sand separator interface detection
DE102013109331A1 (en) 2013-08-28 2015-03-05 Endress + Hauser Gmbh + Co. Kg Device for determining or monitoring a process variable in automation technology
DE102014118393A1 (en) 2014-12-11 2016-06-16 Endress + Hauser Gmbh + Co. Kg Device and a method for determining and / or monitoring at least one process variable
DE102015112055A1 (en) 2015-07-23 2017-01-26 Endress + Hauser Gmbh + Co. Kg Vibronic sensor for determining or monitoring a process variable
DE102015112544A1 (en) 2015-07-30 2017-02-02 Endress+Hauser Gmbh+Co. Kg Device for determining or monitoring a process variable
DE102015114286A1 (en) 2015-08-27 2017-03-02 Endress + Hauser Flowtec Ag Vibronic device for determining or monitoring a process variable
DE102017103001A1 (en) 2017-02-15 2018-08-16 Endress+Hauser SE+Co. KG Improved adhesive bond by microstructuring a surface
DE102021133927A1 (en) 2021-12-20 2023-06-22 Endress+Hauser SE+Co. KG Procedure for checking the functionality or plausibility check of a vibronic sensor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052644A (en) * 1963-08-12
GB1512233A (en) * 1974-03-20 1978-05-24 Matsushita Electric Ind Co Ltd Piezoelectric presence sensitive apparatus
GB2054853B (en) * 1979-07-12 1983-06-29 Bestobell Mobrey Ltd Device for sensing the presence of contents at a certain level in a container
DE3601704A1 (en) * 1986-01-22 1987-07-23 Endress Hauser Gmbh Co DEVICE FOR DETECTING AND / OR MONITORING A PREDICTED LEVEL IN A CONTAINER
DE4419617C2 (en) * 1994-06-03 1998-07-02 Endress Hauser Gmbh Co Arrangement for determining and / or monitoring a predetermined fill level in a container
DE19523461C1 (en) * 1995-06-28 1996-07-11 Endress Hauser Gmbh Co Level detecting device for checking whether container is filled or monitoring predetermined fill level
EP0875742B1 (en) * 1997-04-30 2007-12-19 Endress + Hauser GmbH + Co. KG Device for determining/monitoring of a predefined liquid level in a container
DE59712751D1 (en) * 1997-04-30 2006-11-30 Endress & Hauser Gmbh & Co Kg Device for detecting and / or monitoring a predetermined level in a container

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101517382B (en) * 2006-07-19 2011-11-16 恩德莱斯和豪瑟尔两合公司 System for determining and/or monitoring a process quantity of a medium
WO2018015157A1 (en) * 2016-07-21 2018-01-25 Vega Grieshaber Kg Vibration sensor and method for optimising a piezoelectric drive
US10677643B2 (en) 2016-07-21 2020-06-09 Vega Grieshaber Kg Vibration sensor and method for optimizing a piezoelectric drive

Also Published As

Publication number Publication date
HUP9903021A3 (en) 2000-06-28
EP0985916B1 (en) 2007-07-18
EP0985916A1 (en) 2000-03-15
HUP9903021A2 (en) 2000-04-28
JP2000131118A (en) 2000-05-12
CA2281455C (en) 2002-02-05
DE59814061D1 (en) 2007-08-30
JP3217770B2 (en) 2001-10-15
HU223359B1 (en) 2004-06-28
HU9903021D0 (en) 1999-11-29

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20190909