SE447305B - Anordning for faststellande av pafyllningsnivan i en behallare - Google Patents
Anordning for faststellande av pafyllningsnivan i en behallareInfo
- Publication number
- SE447305B SE447305B SE8104632A SE8104632A SE447305B SE 447305 B SE447305 B SE 447305B SE 8104632 A SE8104632 A SE 8104632A SE 8104632 A SE8104632 A SE 8104632A SE 447305 B SE447305 B SE 447305B
- Authority
- SE
- Sweden
- Prior art keywords
- probe
- capacitance
- measuring
- frequency
- voltage
- Prior art date
Links
- 239000000523 sample Substances 0.000 claims description 106
- 238000012360 testing method Methods 0.000 claims description 58
- 238000011156 evaluation Methods 0.000 claims description 45
- 239000004020 conductor Substances 0.000 claims description 43
- 238000005259 measurement Methods 0.000 claims description 19
- 230000000737 periodic effect Effects 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 238000012937 correction Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 description 26
- 230000010355 oscillation Effects 0.000 description 25
- 239000000463 material Substances 0.000 description 10
- 238000004804 winding Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 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
- G01F23/26—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/266—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
- G01F25/24—Testing proper functioning of electronic circuits
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3029279 | 1980-08-01 | ||
| DE3127637A DE3127637C2 (de) | 1980-08-01 | 1981-07-13 | Anordnung zur Feststellung des Füllstands in einem Behälter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8104632L SE8104632L (sv) | 1982-02-02 |
| SE447305B true SE447305B (sv) | 1986-11-03 |
Family
ID=25787018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8104632A SE447305B (sv) | 1980-08-01 | 1981-07-31 | Anordning for faststellande av pafyllningsnivan i en behallare |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4412450A (de) |
| CH (1) | CH652499A5 (de) |
| DE (1) | DE3127637C2 (de) |
| FR (1) | FR2487976B1 (de) |
| GB (1) | GB2081452B (de) |
| IT (1) | IT1137773B (de) |
| NL (2) | NL187994C (de) |
| SE (1) | SE447305B (de) |
Families Citing this family (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57168169A (en) * | 1981-04-10 | 1982-10-16 | Nissan Motor Co Ltd | Electrostatic capacitance detector |
| US4525792A (en) * | 1982-03-29 | 1985-06-25 | Smiths Industries Public Limited Company | Unidirectional capacitive fluid-gauging systems |
| DE3322657A1 (de) * | 1983-06-23 | 1985-01-10 | VEGA Grieshaber GmbH & Co, 7620 Wolfach | Vorrichtung zur ueberwachung einer laenglichen, fuer die kapazitive fuellstandsmessung in einem behaelter vorgesehenen sonde auf abriss |
| US4528839A (en) * | 1984-04-27 | 1985-07-16 | The Foxboro Company | Transfer calibration system |
| GB8429727D0 (en) * | 1984-11-24 | 1985-01-03 | Bass Plc | Monitoring level of liquid |
| DE3610166A1 (de) * | 1985-04-03 | 1986-10-09 | Smiths Industries Public Ltd. Co., London | Fuellstandsmessgeraet |
| US5048335A (en) * | 1987-10-01 | 1991-09-17 | Bindicator Company | Capacitance-type material level indicator |
| EP0360405A3 (de) * | 1988-08-18 | 1990-04-11 | Texas Instruments Incorporated | Fühler des Kühlmittelniveaus mit zwei Drähten |
| DE3843339A1 (de) * | 1988-12-22 | 1990-06-28 | Vega Grieshaber Gmbh & Co | Anordnung zur kapazitiven fuellstandsmessung |
| EP0405835A3 (en) * | 1989-06-28 | 1991-05-02 | Texas Instruments Incorporated | Two wire coolant level sensor |
| CA2032384C (en) * | 1989-12-18 | 2000-06-20 | Drexelbrook Controls, Inc. | Remote instrument testing system |
| DE4232719C2 (de) * | 1992-09-30 | 1996-05-09 | Grieshaber Vega Kg | Füllstand-Grenzschalter |
| DE4244761C2 (de) * | 1992-09-30 | 1998-09-10 | Grieshaber Vega Kg | Füllstand-Grenzschalter |
| DE4232720C1 (de) * | 1992-09-30 | 1994-03-10 | Vega Grieshaber Gmbh & Co | Anordnung zur Funktionsüberwachung und Meßwertauswertung von Füllstands-Sensoren, insbesondere Vibrations-Füllstands-Grenzschaltern |
| US5635896A (en) * | 1993-12-27 | 1997-06-03 | Honeywell Inc. | Locally powered control system having a remote sensing unit with a two wire connection |
| DE4405238C2 (de) | 1994-02-18 | 1998-07-09 | Endress Hauser Gmbh Co | Anordnung zur Messung des Füllstands in einem Behälter |
| US5434774A (en) * | 1994-03-02 | 1995-07-18 | Fisher Controls International, Inc. | Interface apparatus for two-wire communication in process control loops |
| US5672975A (en) * | 1995-06-07 | 1997-09-30 | Rosemount Inc. | Two-wire level transmitter |
| FR2737297A1 (fr) * | 1995-07-27 | 1997-01-31 | Snecma | Dispositif capacitif de jaugeage et ensemble de mesure de niveau et de controle de la qualite d'un liquide contenu dans un reservoir |
| DE19728443C1 (de) * | 1997-07-03 | 1999-02-25 | Tuchenhagen Gmbh | Überwachungselektrode für die Füllstandsanzeige in Behältern zur Bevorratung elektrisch leitender Flüssigkeiten |
| US5940899A (en) * | 1997-12-31 | 1999-08-24 | Envision This, Inc. | System for preventing toilet overflows |
| DE59914913D1 (de) * | 1999-10-07 | 2009-01-08 | Endress Hauser Gmbh Co | Verfahren und eine Vorrichtung zur Funktionsüberprüfung eines Grenzschalters |
| EP1134562B1 (de) * | 2000-03-15 | 2009-11-18 | Endress + Hauser GmbH + Co. KG | Verfahren zur Übertragung eines Messignals zwischen einer Messeinheit und einer Steuereinheit |
| DE10119471A1 (de) * | 2001-04-20 | 2002-10-31 | Micronas Gmbh | Verfahren und Zweidrahtsensor zur Messung einer physikalischen Größe |
| US6522249B1 (en) * | 2001-08-30 | 2003-02-18 | United Electric Controls, Co. | Two wire output/power mechanism for remote devices |
| RU2239792C2 (ru) * | 2002-11-19 | 2004-11-10 | Лешков Владимир Васильевич | Индуктивный уровнемер |
| US7134330B2 (en) * | 2003-05-16 | 2006-11-14 | Endress + Hauser Gmbh + Co. Kg | Capacitive fill level meter |
| DE10324731A1 (de) | 2003-05-31 | 2004-12-16 | Braun Gmbh | Verfahren und Schaltungsanordnung zur Detektion eines Füllstands einer Flüssigkeit |
| DE102005032131A1 (de) * | 2005-07-07 | 2007-01-18 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung zur kapazitiven Bestimmung und/oder Überwachung des Füllstandes |
| US8936444B2 (en) * | 2007-12-07 | 2015-01-20 | Pentair Flow Technologies, Llc | Capacitive liquid level sensor |
| DE102008022373A1 (de) * | 2008-05-06 | 2009-11-12 | Endress + Hauser Flowtec Ag | Meßgerät sowie Verfahren zum Überwachen eines Meßgeräts |
| DE102008036552A1 (de) * | 2008-08-06 | 2010-02-18 | Endress + Hauser Gmbh + Co. Kg | Feldgerät der Prozessautomatisierung |
| CH702180B1 (de) | 2009-11-02 | 2015-02-13 | Tecan Trading Ag | Verfahren zum Testen eines Laborgeräts und entsprechendes Laborgerät. |
| DE102009046691B4 (de) * | 2009-11-13 | 2013-06-06 | Balluff Gmbh | Sensorvorrichtung |
| GB201116173D0 (en) * | 2011-09-20 | 2011-11-02 | Rolls Royce Plc | Oil sensor |
| DE102011089941A1 (de) * | 2011-12-27 | 2013-06-27 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung zur Bestimmung und/oder Überwachung eines Grenzwertes einer Prozessgröße |
| US9261395B2 (en) | 2012-02-13 | 2016-02-16 | Goodrich Corporation | Liquid level sensing system |
| US9574928B2 (en) | 2012-02-13 | 2017-02-21 | Goodrich Corporation | Liquid level sensing systems |
| GB2505190A (en) * | 2012-08-21 | 2014-02-26 | Schrader Electronics Ltd | Level sensing in a vehicle fuel tank using electromagnetic fields |
| WO2014103421A1 (ja) * | 2012-12-24 | 2014-07-03 | 新東工業株式会社 | 粉粒体の検出方法及び粉粒体検出装置 |
| DE102014107927A1 (de) * | 2014-06-05 | 2015-12-17 | Endress + Hauser Gmbh + Co. Kg | Verfahren und Vorrichtung zur Überwachung des Füllstandes eines Mediums in einem Behälter |
| DE102015122284A1 (de) * | 2015-12-18 | 2017-06-22 | Endress + Hauser Gmbh + Co. Kg | Elektronikeinheit mit Diagnosefunktion |
| DE102016107808B4 (de) * | 2016-04-27 | 2022-03-31 | Tdk-Micronas Gmbh | Verfahren und Anordnung zur Überwachung eines Zustands |
| DE102017012240B4 (de) * | 2017-11-17 | 2019-09-19 | BEDIA Motorentechnik GmbH & Co. KG | Vorrichtung und Verfahren zur kapazitiven Messung eines Füllstands eines Füllmediums |
| DE102017127145B4 (de) * | 2017-11-17 | 2021-03-04 | BEDIA Motorentechnik GmbH & Co. KG | Vorrichtung und Verfahren zur kapazitiven Messung eines Füllstands eines Füllmediums |
| CN111341243B (zh) * | 2020-04-10 | 2021-08-24 | Tcl华星光电技术有限公司 | 显示装置 |
| DE102022111828A1 (de) * | 2022-05-11 | 2023-11-16 | Endress+Hauser SE+Co. KG | Zustandsüberwachung eines vibronischen Sensors |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3042908A (en) * | 1959-09-02 | 1962-07-03 | Honeywell Regulator Co | Fluid level sensor |
| DE1573090B1 (de) * | 1966-05-25 | 1970-10-22 | Siemens Ag | Verfahren und Schaltungsanordnung zur Sicherung von Fluessigkeitstanks gegen UEberfuellung |
| DE1801772B1 (de) * | 1968-10-08 | 1970-05-21 | Endress Hauser Gmbh Co | Verfahren zur Eichung von kapazitiven Fuellstandsmessgeraeten |
| DE1908750B2 (de) * | 1969-02-18 | 1971-04-01 | Schaltung zur signalisierung von fuellstaenden | |
| US3543046A (en) * | 1969-04-14 | 1970-11-24 | Fisher Governor Co | Capacitance-measuring techniques |
| DE2050895A1 (de) * | 1970-10-16 | 1972-04-20 | Eppmann H | Elektronischer Inhaltsanzeiger für Flüssiggasbehälter |
| DE2259849C3 (de) * | 1972-12-07 | 1975-07-03 | Hoechst Ag, 6000 Frankfurt | Anordnung zur automatischen überprüfung der Funktionsfähigkeit einer kapazitiven Meßeinrichtung |
| DE2400723C2 (de) * | 1974-01-08 | 1985-06-27 | Pepperl & Fuchs Gmbh & Co Kg, 6800 Mannheim | Schaltvorrichtung |
| US3956760A (en) * | 1975-03-12 | 1976-05-11 | Liquidometer Corporation | Liquid level gauge |
| DE2701184A1 (de) * | 1977-01-13 | 1978-07-27 | Endress Hauser Gmbh Co | Schaltungsanordnung zur uebertragung von messwertsignalen |
| US4149412A (en) * | 1978-06-16 | 1979-04-17 | Fish Bobby L | Level measuring apparatus |
| DE2837377C3 (de) * | 1978-08-26 | 1981-07-02 | Vega Vertrieb und Fertigung elektronischer Geräte und Apparate Grieshaber KG, 7620 Wolfach | Verfahren und Anordnung zur Messung, Fernübertragung und Rückgewinnung von Meßgrößen |
-
1981
- 1981-07-13 DE DE3127637A patent/DE3127637C2/de not_active Expired
- 1981-07-22 US US06/285,763 patent/US4412450A/en not_active Expired - Lifetime
- 1981-07-23 GB GB8122761A patent/GB2081452B/en not_active Expired
- 1981-07-29 NL NLAANVRAGE8103569,A patent/NL187994C/xx not_active IP Right Cessation
- 1981-07-30 CH CH4931/81A patent/CH652499A5/de not_active IP Right Cessation
- 1981-07-31 SE SE8104632A patent/SE447305B/sv not_active IP Right Cessation
- 1981-07-31 FR FR8114916A patent/FR2487976B1/fr not_active Expired
- 1981-07-31 IT IT23318/81A patent/IT1137773B/it active
-
1992
- 1992-01-08 NL NL9200020A patent/NL9200020A/nl not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| IT1137773B (it) | 1986-09-10 |
| NL187994B (nl) | 1991-10-01 |
| DE3127637A1 (de) | 1982-03-25 |
| NL9200020A (nl) | 1992-04-01 |
| FR2487976A1 (fr) | 1982-02-05 |
| NL8103569A (nl) | 1982-03-01 |
| IT8123318A0 (it) | 1981-07-31 |
| SE8104632L (sv) | 1982-02-02 |
| CH652499A5 (de) | 1985-11-15 |
| FR2487976B1 (fr) | 1986-02-21 |
| NL187994C (nl) | 1992-03-02 |
| DE3127637C2 (de) | 1988-08-18 |
| GB2081452B (en) | 1985-06-26 |
| GB2081452A (en) | 1982-02-17 |
| US4412450A (en) | 1983-11-01 |
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