CA2423781A1 - Procede de detection d'un niveau pre-determine d'une matiere, et dispositif associe - Google Patents
Procede de detection d'un niveau pre-determine d'une matiere, et dispositif associe Download PDFInfo
- Publication number
- CA2423781A1 CA2423781A1 CA002423781A CA2423781A CA2423781A1 CA 2423781 A1 CA2423781 A1 CA 2423781A1 CA 002423781 A CA002423781 A CA 002423781A CA 2423781 A CA2423781 A CA 2423781A CA 2423781 A1 CA2423781 A1 CA 2423781A1
- Authority
- CA
- Canada
- Prior art keywords
- rods
- sensing
- predetermined level
- device therefor
- limit state
- 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
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000002310 reflectometry Methods 0.000 abstract 1
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.
Applications Claiming Priority (5)
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 |
DE10115150A DE10115150A1 (de) | 2000-09-27 | 2001-03-27 | Verfahren zur Erfassung des Grenzstandes eines Gutes und Vorrichtung hierzu |
DE10115150.0 | 2001-03-27 | ||
PCT/EP2001/010813 WO2002027349A2 (fr) | 2000-09-27 | 2001-09-19 | Procede de detection de l'etat limite d'une matiere et dispositif associe |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2423781A1 true CA2423781A1 (fr) | 2003-03-26 |
CA2423781C CA2423781C (fr) | 2009-02-24 |
Family
ID=26008927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002423781A Expired - Fee Related CA2423781C (fr) | 2000-09-27 | 2001-09-19 | Procede de detection d'un niveau pre-determine 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) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7639176B2 (en) | 2005-11-30 | 2009-12-29 | Vega Grieshaber Kg | Reference pulse generation |
US20110214502A1 (en) * | 2008-12-06 | 2011-09-08 | Jingdong Zhang | Level |
US8276443B2 (en) | 2007-02-08 | 2012-10-02 | Krohne Messetechnik GmbH & Co. KG | Method of using a level meter employing the radar principle |
US10704948B2 (en) | 2016-06-14 | 2020-07-07 | Vega Grieshaber Kg | Reflection microwave barrier |
Families Citing this family (10)
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 |
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 |
HUE036364T2 (hu) * | 2015-02-03 | 2018-07-30 | Grieshaber Vega Kg | Határszint kapcsoló integrált szintérzékelõvel |
DE102015202448A1 (de) * | 2015-02-11 | 2016-08-11 | Vega Grieshaber Kg | Auswerteverfahren für einen TDR-Grenzstandschalter |
WO2018086949A1 (fr) | 2016-11-11 | 2018-05-17 | Leoni Kabel Gmbh | Procédé et système de mesure servant à la surveillance d'une ligne |
DK3527959T3 (da) * | 2018-02-14 | 2024-01-15 | Grieshaber Vega Kg | Fyldeniveauradar med vedhæftningsdetektor |
DE102021201364A1 (de) * | 2021-02-12 | 2022-08-18 | Vega Grieshaber Kg | Messeinrichtung mit Lagesensor |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4407369C2 (de) * | 1994-03-05 | 1999-09-30 | Grieshaber Vega Kg | Verfahren und Schaltungsanordnung zur Laufzeitmessung sowie deren Verwendung |
US5884231A (en) * | 1995-12-21 | 1999-03-16 | Endress & Hauser Gmbh & Co. | Processor apparatus and method for a process measurement signal |
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 |
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 |
-
2001
- 2001-09-19 AU AU2002218183A patent/AU2002218183A1/en not_active Abandoned
- 2001-09-19 JP JP2002530876A patent/JP2004519661A/ja active Pending
- 2001-09-19 CN CN01816386.6A patent/CN1250944C/zh not_active Expired - Fee Related
- 2001-09-19 EP EP01985756A patent/EP1322922A2/fr not_active Withdrawn
- 2001-09-19 WO PCT/EP2001/010813 patent/WO2002027349A2/fr active Application Filing
- 2001-09-19 CA CA002423781A patent/CA2423781C/fr not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7639176B2 (en) | 2005-11-30 | 2009-12-29 | Vega Grieshaber Kg | Reference pulse generation |
US8276443B2 (en) | 2007-02-08 | 2012-10-02 | Krohne Messetechnik GmbH & Co. KG | Method of using a level meter employing the radar principle |
US20110214502A1 (en) * | 2008-12-06 | 2011-09-08 | Jingdong Zhang | Level |
US10704948B2 (en) | 2016-06-14 | 2020-07-07 | Vega Grieshaber Kg | Reflection microwave barrier |
Also Published As
Publication number | Publication date |
---|---|
CA2423781C (fr) | 2009-02-24 |
AU2002218183A1 (en) | 2002-04-08 |
WO2002027349A3 (fr) | 2002-10-24 |
JP2004519661A (ja) | 2004-07-02 |
WO2002027349A2 (fr) | 2002-04-04 |
CN1250944C (zh) | 2006-04-12 |
CN1466674A (zh) | 2004-01-07 |
EP1322922A2 (fr) | 2003-07-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |