DE3871738D1 - Fluessigkeitsstandfuehleinrichtung. - Google Patents
Fluessigkeitsstandfuehleinrichtung.Info
- Publication number
- DE3871738D1 DE3871738D1 DE8888906582T DE3871738T DE3871738D1 DE 3871738 D1 DE3871738 D1 DE 3871738D1 DE 8888906582 T DE8888906582 T DE 8888906582T DE 3871738 T DE3871738 T DE 3871738T DE 3871738 D1 DE3871738 D1 DE 3871738D1
- Authority
- DE
- Germany
- Prior art keywords
- liquid level
- level detector
- detector
- liquid
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
-
- 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
-
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
- G01N2035/1025—Fluid level sensing
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical 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)
- Level Indicators Using A Float (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/067,183 US4912976A (en) | 1987-06-26 | 1987-06-26 | Liquid level sensing apparatus |
PCT/US1988/001987 WO1988010412A1 (en) | 1987-06-26 | 1988-06-09 | Liquid level sensing apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3871738D1 true DE3871738D1 (de) | 1992-07-09 |
DE3871738T2 DE3871738T2 (de) | 1992-12-10 |
Family
ID=22074259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888906582T Expired - Lifetime DE3871738T2 (de) | 1987-06-26 | 1988-06-09 | Fluessigkeitsstandfuehleinrichtung. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4912976A (de) |
EP (1) | EP0319573B1 (de) |
JP (1) | JPH0641140Y2 (de) |
AU (1) | AU598693B2 (de) |
DE (1) | DE3871738T2 (de) |
ES (1) | ES2009298A6 (de) |
WO (1) | WO1988010412A1 (de) |
Families Citing this family (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5083470A (en) * | 1990-01-18 | 1992-01-28 | E. I. Du Pont De Nemours And Company | Capacitive liquid level sensor |
US5159962A (en) * | 1991-04-05 | 1992-11-03 | Harcros Pigments, Inc. | Container filling machine, particularly for concentrated liquid pigment |
JPH04319624A (ja) * | 1991-04-18 | 1992-11-10 | Olympus Optical Co Ltd | 液面検知装置 |
AU2193492A (en) * | 1991-06-13 | 1993-01-12 | Abbott Laboratories | Automated specimen analyzing apparatus and method |
JPH0697246B2 (ja) * | 1991-07-25 | 1994-11-30 | 株式会社ジャルコ | Pll回路を用いた浮遊容量の変化検出方法 |
DE4203638A1 (de) * | 1992-02-08 | 1993-08-12 | Boehringer Mannheim Gmbh | Fluessigkeitstransfereinrichtung fuer ein analysegeraet |
CA2136630A1 (en) * | 1992-06-08 | 1993-12-23 | John E. Waylet, Jr. | Liquid dispensing system |
US5365783A (en) * | 1993-04-30 | 1994-11-22 | Packard Instrument Company, Inc. | Capacitive sensing system and technique |
AU674435B2 (en) * | 1993-07-09 | 1996-12-19 | Akzo Nobel N.V. | Memory control device for an assay apparatus |
US5493922A (en) * | 1993-07-09 | 1996-02-27 | Akzo N.V. | Liquid level sensing probe and control circuit |
US5416448A (en) * | 1993-08-18 | 1995-05-16 | Sandia Corporation | Oscillator circuit for use with high loss quartz resonator sensors |
US5602333A (en) * | 1994-06-17 | 1997-02-11 | Smiths Industries | Apparatus for measuring the level of a liquid in a tank |
DE69525570T2 (de) * | 1994-07-28 | 2002-08-22 | Hitachi, Ltd. | Probensammler für flüssige Proben |
NL9500217A (nl) * | 1995-02-06 | 1996-09-02 | Meridian Instr Bv | Capacitieve meetinrichting. |
US6378435B1 (en) * | 1995-04-03 | 2002-04-30 | General Dynamics Decision Systems, Inc. | Variable target transition detection capability and method therefor |
US5623252A (en) * | 1995-05-22 | 1997-04-22 | Cacciola; John A. | Liquid level detector using audio frequencies |
US5641006A (en) * | 1995-07-13 | 1997-06-24 | Chiron Diagnostics Corporation | Liquid supply apparatus and method of operation |
US5750881A (en) * | 1995-07-13 | 1998-05-12 | Chiron Diagnostics Corporation | Method and apparatus for aspirating and dispensing sample fluids |
US6158269A (en) * | 1995-07-13 | 2000-12-12 | Bayer Corporation | Method and apparatus for aspirating and dispensing sample fluids |
US5866426A (en) * | 1996-12-17 | 1999-02-02 | Akzo Nobel N.V. | Device and method for determining liquid-probe contact |
EP0918221B1 (de) | 1997-11-19 | 2006-09-06 | Grifols, S.A. | Vorrichtung zur automatischen Durchführung von Laboratoriumprüfungen |
ES2132034B1 (es) * | 1997-11-19 | 2000-03-01 | Grifols Grupo Sa | Dispositivo para la manipulacion y deteccion de nivel de liquidos. |
DE19919305A1 (de) | 1999-04-28 | 2000-11-02 | Roche Diagnostics Gmbh | Verfahren und Vorrichtung zum Flüssigkeitstransfer mit einem Analysegerät |
JP4497637B2 (ja) | 1999-11-01 | 2010-07-07 | 株式会社ノーケン | 静電容量式検知装置 |
CA2342023C (en) * | 2000-04-10 | 2007-07-03 | Randox Laboratories Ltd. | Paramagnetic particle detection |
US6581461B1 (en) | 2000-05-25 | 2003-06-24 | Trn Business Trust | Electro-optic sensor for levelmeter providing output signal with frequency modulated by surface level |
US6762679B1 (en) | 2000-11-06 | 2004-07-13 | Trn Business Trust | Remote monitoring adapter for levelmeter |
US20020106308A1 (en) * | 2001-02-02 | 2002-08-08 | Zweifel Ronald A. | Microdrop dispensing apparatus |
US6606906B2 (en) | 2001-09-06 | 2003-08-19 | Trn Business Trust | Digital conversion adapter for magnetically coupled level meters |
US6736006B2 (en) | 2001-12-31 | 2004-05-18 | Trn Business Trust | Level detector for a material in a container |
FR2838824B1 (fr) * | 2002-04-19 | 2005-02-04 | Sogem Fl | Procede et dispositif pour reguler automatiquement une quantite de produit deposee de maniere repetitive par un actionneur de depose, et l'installation de depose equipee d'un tel dispositif |
US6938478B2 (en) | 2002-11-14 | 2005-09-06 | Herman Diaz Arias | Impedance level meter for liquids in tanks |
US20040093939A1 (en) * | 2002-11-14 | 2004-05-20 | Arias Herman Diaz | Non-contact level detector for fluids in a container |
US7191647B2 (en) * | 2003-10-30 | 2007-03-20 | Perkinelmer Las, Inc. | Method and apparatus to reject electrical interference in a capacitive liquid level sensor system |
US8602744B2 (en) * | 2005-03-25 | 2013-12-10 | Diversitech Corporation | Condensate pump |
US8651824B2 (en) * | 2005-03-25 | 2014-02-18 | Diversitech Corporation | Condensate pump |
US7814788B2 (en) * | 2006-10-20 | 2010-10-19 | Abbott Laboratories, Inc. | Liquid level sensor |
CN101858770B (zh) * | 2009-04-09 | 2013-04-24 | 深圳迈瑞生物医疗电子股份有限公司 | 液面检测装置及加样系统 |
US8225654B2 (en) * | 2009-07-01 | 2012-07-24 | Tecan Trading Ag | Self-compensating capacitive liquid level detector |
CH702180B1 (de) * | 2009-11-02 | 2015-02-13 | Tecan Trading Ag | Verfahren zum Testen eines Laborgeräts und entsprechendes Laborgerät. |
CN103543282A (zh) | 2010-07-23 | 2014-01-29 | 贝克曼考尔特公司 | 用于处理化验盒的系统 |
US9907908B2 (en) | 2011-03-08 | 2018-03-06 | Baxter International Inc. | Non-invasive radio frequency medical fluid level and volume detection system and method |
WO2012162230A1 (en) * | 2011-05-20 | 2012-11-29 | Impulse Biomedical, Inc. | Feeding tube cleaning devices and methods |
WO2012169469A1 (ja) * | 2011-06-06 | 2012-12-13 | 株式会社日立ハイテクノロジーズ | 自動分析装置 |
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 |
JP2015087329A (ja) * | 2013-10-31 | 2015-05-07 | シスメックス株式会社 | 吸引部の位置調整方法及び検体処理装置 |
WO2017223214A1 (en) * | 2016-06-22 | 2017-12-28 | Abbott Laboratories | Liquid level sensing apparatus and related methods |
WO2018162968A1 (en) * | 2017-03-09 | 2018-09-13 | King Abdullah University Of Science And Technology | Fluid characteristic sensor, sensor system, and method |
US11069678B2 (en) * | 2017-08-29 | 2021-07-20 | Qorvo Us, Inc. | Logic gate cell structure |
EP3787468B1 (de) * | 2018-06-22 | 2024-06-19 | Bissell Inc. | Vorrichtung zur reinigung von oberflächen |
WO2023288032A1 (en) | 2021-07-15 | 2023-01-19 | Beckman Coulter, Inc. | Fluid handling systems with function checks |
CN113959523A (zh) * | 2021-09-22 | 2022-01-21 | 青岛海尔生物医疗科技有限公司 | 用于培养设备的液位检测装置及方法、培养设备及介质 |
EP4430409A1 (de) | 2021-11-09 | 2024-09-18 | Beckman Coulter, Inc. | Automatische pipettenspitzenorganisation für flüssigkeitshandhabungssysteme |
US11988540B2 (en) | 2022-08-15 | 2024-05-21 | Instrumentation Laboratory Co. | Liquid level detection based on tunable inductive-capacitive tank circuit |
Family Cites Families (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB663643A (en) * | 1947-11-01 | 1951-12-27 | George Henry Ennis | Improved system for regulating the quantity of liquid in a container |
US2657579A (en) * | 1952-02-04 | 1953-11-03 | Smith & Sons Ltd S | Liquid level indicating device |
US2792566A (en) * | 1953-12-11 | 1957-05-14 | William M Shanhouse | Liquid level detector |
US3277711A (en) * | 1963-05-24 | 1966-10-11 | Rowell A Roberge | Electronic liquid level indicator |
US3321971A (en) * | 1964-05-27 | 1967-05-30 | Varian Associates | Level indicating apparatus |
FR1568072A (de) * | 1968-01-24 | 1969-05-23 | ||
GB1287148A (en) * | 1969-06-11 | 1972-08-31 | Thomas Electronics Ltd | Improvements in or relating to water level detectors |
SE378452B (de) * | 1969-06-11 | 1975-09-01 | Thomas Electronics Ltd | |
US3687632A (en) * | 1969-07-30 | 1972-08-29 | Rohe Scientific Corp | System for transferring liquids between containers |
DE2041678A1 (de) * | 1969-09-06 | 1971-03-11 | Greiner Electronic Ag | Verfahren zum Betrieb einer Transferpipette |
US3641544A (en) * | 1970-06-22 | 1972-02-08 | Ford Motor Co | Low-liquid level indicator |
US3821900A (en) * | 1970-07-13 | 1974-07-02 | F Preikschat | Proportional bin level sensor |
US3662333A (en) * | 1970-09-08 | 1972-05-09 | Bendix Corp | Hydraulic accumulator charge detector and indicating system |
DE2055590A1 (de) * | 1970-11-12 | 1972-05-18 | Krauss Maffei Ag | Anordnung zum Anzeigen des Füllstandes in Behältern, insbesondere des Kühlwasserstandes bei Diesellokomotiven |
US3807231A (en) * | 1971-07-01 | 1974-04-30 | R Spaw | Automatic level measuring and control system |
US3793585A (en) * | 1972-02-02 | 1974-02-19 | M Wilska | Moisture monitor having a resistor between sensing capacitor and oscillator tuned input to improve oscillator response |
FR2208121B1 (de) * | 1972-11-29 | 1978-12-29 | Commissariat Energie Atomique | |
US4165641A (en) * | 1974-06-17 | 1979-08-28 | P. R. Mallory & Co. Inc. | Liquid level sensing means |
NL7413475A (nl) * | 1974-10-14 | 1976-04-20 | Mattheus Gijsbertus Jozef Arts | Niveauregeling. |
US4182176A (en) * | 1976-06-24 | 1980-01-08 | Westinghouse Electric Corporation | Liquid level sensor with improved linearity |
US4099167A (en) * | 1977-02-10 | 1978-07-04 | P.R. Mallory & Co. Inc. | Capacitive means for measuring the level of a liquid |
FR2386811A1 (fr) * | 1977-04-06 | 1978-11-03 | Elf Aquitaine | Detecteur de niveau de separation entre deux liquides |
US4170135A (en) * | 1978-09-26 | 1979-10-09 | The United States Of America As Represented By The United States Department Of Energy | Coaxial cavity for measuring level of liquid in a container |
US4389900A (en) * | 1979-06-14 | 1983-06-28 | The United States Of America As Represented By The Secretary Of The Interior | Capacitance probe sensor device |
US4276258A (en) * | 1980-01-28 | 1981-06-30 | Coulter Electronics, Inc. | Sample and stat feeding system and sample tray |
US4326851A (en) * | 1980-10-24 | 1982-04-27 | Coulter Electronics, Inc. | Level sensor apparatus and method |
JPH04279Y2 (de) * | 1981-05-21 | 1992-01-07 | ||
DE3128507C2 (de) * | 1981-07-18 | 1986-02-06 | Olaf A. 3504 Kaufungen Richter | Einrichtung zum Überwachen der Länge einer Flüssigkeitssäule |
US4482891A (en) * | 1981-09-21 | 1984-11-13 | Spencer John D | Robust electronic liquid level gauge |
JPS58180916A (ja) * | 1982-04-16 | 1983-10-22 | Nippon Soken Inc | 液レベル検出装置 |
US4543823A (en) * | 1982-04-28 | 1985-10-01 | General Motors Corporation | Microwave probe for detecting oil level |
AU571446B2 (en) * | 1982-08-25 | 1988-04-21 | Venture Measurement Company Llc | Self calibrating capacitance level sensor |
US4495807A (en) * | 1983-02-24 | 1985-01-29 | The United States Of America As Represented By The United States Department Of Energy | Precision liquid level sensor |
DE3323748A1 (de) * | 1983-07-01 | 1985-01-03 | Norddeutsche Affinerie AG, 2000 Hamburg | Verfahren zur messung und regelung des fuellstandes von in einem behaelter befindlichen stoffen |
JPS6057217A (ja) * | 1983-09-09 | 1985-04-03 | Nippon Kokan Kk <Nkk> | 渦流式モ−ルド湯面計 |
US4638305A (en) * | 1985-03-22 | 1987-01-20 | General Motors Corporation | Apparatus for detecting water in fuel |
US4736638A (en) * | 1985-12-20 | 1988-04-12 | Beckman Instruments, Inc. | Liquid level sensor |
-
1987
- 1987-06-26 US US07/067,183 patent/US4912976A/en not_active Expired - Lifetime
-
1988
- 1988-06-09 WO PCT/US1988/001987 patent/WO1988010412A1/en active IP Right Grant
- 1988-06-09 JP JP1989600010U patent/JPH0641140Y2/ja not_active Expired - Lifetime
- 1988-06-09 AU AU21326/88A patent/AU598693B2/en not_active Ceased
- 1988-06-09 EP EP88906582A patent/EP0319573B1/de not_active Expired
- 1988-06-09 DE DE8888906582T patent/DE3871738T2/de not_active Expired - Lifetime
- 1988-06-24 ES ES8801991A patent/ES2009298A6/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
WO1988010412A1 (en) | 1988-12-29 |
JPH02500020U (de) | 1990-04-26 |
US4912976A (en) | 1990-04-03 |
ES2009298A6 (es) | 1989-09-16 |
EP0319573B1 (de) | 1992-06-03 |
AU2132688A (en) | 1989-01-19 |
AU598693B2 (en) | 1990-06-28 |
DE3871738T2 (de) | 1992-12-10 |
JPH0641140Y2 (ja) | 1994-10-26 |
EP0319573A1 (de) | 1989-06-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |