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WO2002027349A3 - Procede de detection de l'etat limite d'une matiere et dispositif associe - Google Patents

Procede de detection de l'etat limite d'une matiere et dispositif associe Download PDF

Info

Publication number
WO2002027349A3
WO2002027349A3 PCT/EP2001/010813 EP0110813W WO0227349A3 WO 2002027349 A3 WO2002027349 A3 WO 2002027349A3 EP 0110813 W EP0110813 W EP 0110813W WO 0227349 A3 WO0227349 A3 WO 0227349A3
Authority
WO
WIPO (PCT)
Prior art keywords
limit state
detecting
rods
device therefor
attained
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.)
Ceased
Application number
PCT/EP2001/010813
Other languages
German (de)
English (en)
Other versions
WO2002027349A2 (fr
Inventor
Herrmann Best
Markus Hertel
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
Priority claimed from DE20016962U external-priority patent/DE20016962U1/de
Application filed by Endress and Hauser SE and Co KG filed Critical Endress and Hauser SE and Co KG
Priority to AU2002218183A priority Critical patent/AU2002218183A1/en
Priority to CA002423781A priority patent/CA2423781C/fr
Priority to JP2002530876A priority patent/JP2004519661A/ja
Priority to EP01985756A priority patent/EP1322922A2/fr
Publication of WO2002027349A2 publication Critical patent/WO2002027349A2/fr
Publication of WO2002027349A3 publication Critical patent/WO2002027349A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • G01F23/284—Electromagnetic waves
    • G01F23/2845—Electromagnetic waves for discrete levels

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

Procédé et dispositif de détection de l'état limite d'une matière à constante diélectrique donnée. Ledit dispositif comporte un élément de support dans lequel sont placés deux tiges électriquement conductrices qui sont immergées dans la matière à surveiller lorsque l'état limite est atteint et qui sont connectées à un circuit électrique. Ce dernier produit des impulsions d'émission à haute fréquence qui sont transmises aux tiges par l'intermédiaire d'une ligne, selon le principe de la réflectométrie à dimension temporelle. Les signaux réfléchis par la couche constituant la limite entre la matière et l'air sont évalués à l'aide de leur forme de courbe.
PCT/EP2001/010813 2000-09-27 2001-09-19 Procede de detection de l'etat limite d'une matiere et dispositif associe Ceased WO2002027349A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2002218183A AU2002218183A1 (en) 2000-09-27 2001-09-19 Method for detecting the limit state of a material, and device therefor
CA002423781A CA2423781C (fr) 2000-09-27 2001-09-19 Procede de detection d'un niveau pre-determine d'une matiere, et dispositif associe
JP2002530876A JP2004519661A (ja) 2000-09-27 2001-09-19 材料のリミットレベルの捕捉検出方法およびこのための装置
EP01985756A EP1322922A2 (fr) 2000-09-27 2001-09-19 Procede de detection de l'etat limite d'une matiere et dispositif associe

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20016962.9 2000-09-27
DE20016962U DE20016962U1 (de) 2000-09-27 2000-09-27 Zeitbereichsreflektometer für den Einsatz als Grenzwertschalter zur Erfassung des Grenzstandes eines Gutes
DE10115150.0 2001-03-27
DE10115150A DE10115150A1 (de) 2000-09-27 2001-03-27 Verfahren zur Erfassung des Grenzstandes eines Gutes und Vorrichtung hierzu

Publications (2)

Publication Number Publication Date
WO2002027349A2 WO2002027349A2 (fr) 2002-04-04
WO2002027349A3 true WO2002027349A3 (fr) 2002-10-24

Family

ID=26008927

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/010813 Ceased WO2002027349A2 (fr) 2000-09-27 2001-09-19 Procede de detection de l'etat limite d'une matiere et dispositif associe

Country Status (6)

Country Link
EP (1) EP1322922A2 (fr)
JP (1) JP2004519661A (fr)
CN (1) CN1250944C (fr)
AU (1) AU2002218183A1 (fr)
CA (1) CA2423781C (fr)
WO (1) WO2002027349A2 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10360711A1 (de) * 2003-12-19 2005-07-14 Endress + Hauser Gmbh + Co. Kg Füllstandsmeßgerät und Verfahren zur Füllstandsmessung und -überwachung
DE102005057053A1 (de) 2005-11-30 2007-05-31 Vega Grieshaber Kg Referenzpulserzeugung
DE102007007024A1 (de) 2007-02-08 2008-08-21 KROHNE Meßtechnik GmbH & Co. KG Verwendung eines nach dem Radar-Prinzip arbeitenden Füllstandsmeßgeräts
GB0822283D0 (en) * 2008-12-06 2009-01-14 Mobrey Ltd Improvements in or relating to level sensors
CN102735313B (zh) * 2012-06-19 2014-07-30 郭云昌 一种确定连续式无源核子料位计中料位曲线的方法
DE102014103212A1 (de) * 2014-03-11 2015-09-17 Sick Ag Sensor und Verfahren zum Erkennen eines auf einer Rollenbahn befindlichen Objekts
DE102015100415A1 (de) * 2015-01-13 2016-07-14 Krohne Messtechnik Gmbh Vorrichtung zur Bestimmung des Füllstands eines Mediums
DE102015100417A1 (de) * 2015-01-13 2016-07-14 Krohne Messtechnik Gmbh Verfahren zur Bestimmung des Füllstands eines Mediums in einem Behälter
EP3054271B1 (fr) * 2015-02-03 2017-06-28 VEGA Grieshaber KG Détecteur de niveau doté d'un capteur de position intégré
DE102015202448A1 (de) * 2015-02-11 2016-08-11 Vega Grieshaber Kg Auswerteverfahren für einen TDR-Grenzstandschalter
DK3258296T3 (da) 2016-06-14 2023-09-04 Grieshaber Vega Kg Reflektionsmikrobølgeskranke
KR102195292B1 (ko) * 2016-11-11 2020-12-24 레오니 카벨 게엠베하 라인을 모니터링하기 위한 방법 및 측정 조립체
GB2569540A (en) * 2017-12-19 2019-06-26 Rosemount Measurement Ltd Improvements in or relating to interface detection
EP3527959B1 (fr) * 2018-02-14 2023-11-08 VEGA Grieshaber KG Radar de détection de niveau de remplissage pourvu de détecteur d'adhérence
DE102021201364A1 (de) * 2021-02-12 2022-08-18 Vega Grieshaber Kg Messeinrichtung mit Lagesensor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4407369A1 (de) * 1994-03-05 1995-09-14 Grieshaber Vega Kg Verfahren und Schaltungsanordnung zur Laufzeitmessung sowie deren Verwendung
EP0780665A2 (fr) * 1995-12-21 1997-06-25 Endress + Hauser GmbH + Co. Procédé et appareil de traitement de signaux de mesure dans des processus
US5943908A (en) * 1997-09-08 1999-08-31 Teleflex Incorporated Probe for sensing fluid level
US6085589A (en) * 1996-12-23 2000-07-11 Venture Measurement Company Llc Material level sensing system calibration

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1128169A1 (fr) * 1999-12-29 2001-08-29 Endress + Hauser GmbH + Co. Méthode et dispositif pour la détermination du niveau limite d'un produit dans un récipient

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4407369A1 (de) * 1994-03-05 1995-09-14 Grieshaber Vega Kg Verfahren und Schaltungsanordnung zur Laufzeitmessung sowie deren Verwendung
EP0780665A2 (fr) * 1995-12-21 1997-06-25 Endress + Hauser GmbH + Co. Procédé et appareil de traitement de signaux de mesure dans des processus
US6085589A (en) * 1996-12-23 2000-07-11 Venture Measurement Company Llc Material level sensing system calibration
US5943908A (en) * 1997-09-08 1999-08-31 Teleflex Incorporated Probe for sensing fluid level

Also Published As

Publication number Publication date
EP1322922A2 (fr) 2003-07-02
AU2002218183A1 (en) 2002-04-08
JP2004519661A (ja) 2004-07-02
CA2423781A1 (fr) 2003-03-26
CA2423781C (fr) 2009-02-24
WO2002027349A2 (fr) 2002-04-04
CN1250944C (zh) 2006-04-12
CN1466674A (zh) 2004-01-07

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