DE69100755T2 - Kapazitiver Flüssigkeitssensor. - Google Patents

Kapazitiver Flüssigkeitssensor.

Info

Publication number
DE69100755T2
DE69100755T2 DE91100534T DE69100755T DE69100755T2 DE 69100755 T2 DE69100755 T2 DE 69100755T2 DE 91100534 T DE91100534 T DE 91100534T DE 69100755 T DE69100755 T DE 69100755T DE 69100755 T2 DE69100755 T2 DE 69100755T2
Authority
DE
Germany
Prior art keywords
liquid sensor
capacitive liquid
capacitive
sensor
liquid
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
Application number
DE91100534T
Other languages
English (en)
Other versions
DE69100755D1 (de
Inventor
James Edward Davis
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.)
Dade Behring Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of DE69100755D1 publication Critical patent/DE69100755D1/de
Application granted granted Critical
Publication of DE69100755T2 publication Critical patent/DE69100755T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01N35/1081—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices characterised by the means for relatively moving the transfer device and the containers in an horizontal plane
    • G01N35/109—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices characterised by the means for relatively moving the transfer device and the containers in an horizontal plane with two horizontal degrees of freedom
    • 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
    • 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
DE91100534T 1990-01-18 1991-01-18 Kapazitiver Flüssigkeitssensor. Expired - Fee Related DE69100755T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/466,937 US4977786A (en) 1990-01-18 1990-01-18 Capacitive liquid level sensor

Publications (2)

Publication Number Publication Date
DE69100755D1 DE69100755D1 (de) 1994-01-27
DE69100755T2 true DE69100755T2 (de) 1994-04-07

Family

ID=23853654

Family Applications (1)

Application Number Title Priority Date Filing Date
DE91100534T Expired - Fee Related DE69100755T2 (de) 1990-01-18 1991-01-18 Kapazitiver Flüssigkeitssensor.

Country Status (5)

Country Link
US (1) US4977786A (de)
EP (1) EP0438158B1 (de)
JP (1) JPH04218725A (de)
CA (1) CA2034549A1 (de)
DE (1) DE69100755T2 (de)

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US5610069A (en) 1992-03-27 1997-03-11 Abbott Laboratories Apparatus and method for washing clinical apparatus
US5646049A (en) 1992-03-27 1997-07-08 Abbott Laboratories Scheduling operation of an automated analytical system
US5578494A (en) 1992-03-27 1996-11-26 Abbott Laboratories Cap actuator for opening and closing a container
US5507410A (en) 1992-03-27 1996-04-16 Abbott Laboratories Meia cartridge feeder
US5376313A (en) * 1992-03-27 1994-12-27 Abbott Laboratories Injection molding a plastic assay cuvette having low birefringence
US5635364A (en) 1992-03-27 1997-06-03 Abbott Laboratories Assay verification control for an automated analytical system
US5960160A (en) 1992-03-27 1999-09-28 Abbott Laboratories Liquid heater assembly with a pair temperature controlled electric heating elements and a coiled tube therebetween
US6190617B1 (en) 1992-03-27 2001-02-20 Abbott Laboratories Sample container segment assembly
US5605665A (en) 1992-03-27 1997-02-25 Abbott Laboratories Reaction vessel
US5536471A (en) 1992-03-27 1996-07-16 Abbott Laboratories Syringe with bubble flushing
US5627522A (en) 1992-03-27 1997-05-06 Abbott Laboratories Automated liquid level sensing system
US5540890A (en) 1992-03-27 1996-07-30 Abbott Laboratories Capped-closure for a container
US5575978A (en) 1992-03-27 1996-11-19 Abbott Laboratories Sample container segment assembly
US5428997A (en) * 1992-07-20 1995-07-04 Pasteur Sanofi Diagnostics Method of and device for fluid surface detection using an ultrasonic transducer
US5461921A (en) * 1993-07-13 1995-10-31 Iowa State University Research Foundation, Inc. Direct-sequence spread-spectrum ultrasonic testing device
US5627304A (en) * 1994-05-23 1997-05-06 Smiths Industries System for automatic real-time calibration of remotely-located capacitive-type fuel quantity measurement probes
US5517867A (en) * 1994-07-15 1996-05-21 E. I. Du Pont De Nemours And Company Liquid extraction apparatus
US6158269A (en) * 1995-07-13 2000-12-12 Bayer Corporation Method and apparatus for aspirating and dispensing sample fluids
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
US5795784A (en) 1996-09-19 1998-08-18 Abbott Laboratories Method of performing a process for determining an item of interest in a sample
US5856194A (en) 1996-09-19 1999-01-05 Abbott Laboratories Method for determination of item of interest in a sample
DE19750642C2 (de) * 1996-11-19 1998-11-26 Hitachi Ltd Analysator mit Pipettiersonde
FR2759164A1 (fr) * 1997-01-31 1998-08-07 Canon Kk Procede et dispositif de determination de la quantite de produit present dans un reservoir, reservoir de produit et dispositif de traitement de signaux electriques destines a un tel dispositif de determination
US5973415A (en) * 1997-08-28 1999-10-26 Kay-Ray/Sensall, Inc. Capacitance level sensor
DE19813013C2 (de) * 1998-03-25 2000-04-06 Ifm Electronic Gmbh Verfahren zum Betreiben eines kapazitiven Näherungsschalters und Schaltungsanordnung eines kapazitiven Näherungsschalters
EP2230521A3 (de) 2000-02-29 2013-11-13 Gen-Probe Incorporated Fluidabgabe- und Flüssigkeitsoberflächenprüfungssystem und -methode
US20030010115A1 (en) * 2001-07-16 2003-01-16 Kelley Ronald J. Means for measuring the liquid level in a reservoir for a fuel cell
US7086593B2 (en) 2003-04-30 2006-08-08 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Magnetic field response measurement acquisition system
US20040249991A1 (en) * 2003-06-03 2004-12-09 Dell Products L.P. Cable detection using cable capacitance
US6925398B2 (en) 2003-07-07 2005-08-02 Colorado Vnet, Llc Water measurement apparatus and methods
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
US7275430B2 (en) * 2005-10-07 2007-10-02 Beckman Coulter, Inc. Method and apparatus for detecting liquid levels in liquid-storage containers
WO2008101333A1 (en) * 2007-02-23 2008-08-28 Warren Michael Levy Fluid level sensing device and methods of using same
DE102007023927B3 (de) * 2007-05-23 2009-01-08 Vega Grieshaber Kg Massekopplung an getakteten HF-Bauelementen
DE102007058707A1 (de) * 2007-12-06 2009-06-10 Infineon Technologies Ag Kapazitätssensor
US7880481B2 (en) 2007-12-19 2011-02-01 Infineon Technologies Ag Capacitive sensor and measurement system
US20090198458A1 (en) * 2008-01-29 2009-08-06 Mcdermid John Water measurement auto-networks
US7804599B2 (en) * 2008-07-24 2010-09-28 MGM Instruments, Inc. Fluid volume verification system
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.
US8692562B2 (en) 2011-08-01 2014-04-08 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Wireless open-circuit in-plane strain and displacement sensor requiring no electrical connections
AU2012305682B2 (en) 2011-09-09 2015-08-13 Gen-Probe Incorporated Automated sample handling instrumentation, systems, processes, and methods
US9329153B2 (en) 2013-01-02 2016-05-03 United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method of mapping anomalies in homogenous material
US9024808B2 (en) * 2013-03-07 2015-05-05 Rosemount Tank Radar Ab Filling level determination using transmit signals with different frequency steps
US9945883B2 (en) 2014-04-08 2018-04-17 Life Technologies Corporation Pipette system
WO2017223214A1 (en) * 2016-06-22 2017-12-28 Abbott Laboratories Liquid level sensing apparatus and related methods
CH712735A1 (de) * 2016-07-22 2018-01-31 Tecan Trading Ag Pipettiervorrichtung mit einem Flüssigkeitsvolumensensor und Flüssigkeitsbearbeitungssystem.
JP6660840B2 (ja) * 2016-07-27 2020-03-11 日本電子株式会社 自動分析装置及びプログラム
CN109030807A (zh) * 2018-08-09 2018-12-18 苏州长光华医生物医学工程有限公司 适用于清洗分离功能堵针的检测系统及方法
CN109669034B (zh) * 2018-12-21 2022-02-22 苏州长光华医生物医学工程有限公司 液瓶液量检测系统及其应用方法
CN116324422A (zh) 2020-10-07 2023-06-23 美国西门子医学诊断股份有限公司 多点滤波液体液位检测方法和装置

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DE2041678A1 (de) * 1969-09-06 1971-03-11 Greiner Electronic Ag Verfahren zum Betrieb einer Transferpipette
CH521574A (de) * 1970-12-08 1972-04-15 Endress Hauser Gmbh Co Füllstandsmessvorrichtung
US3939360A (en) * 1973-10-25 1976-02-17 John A. Jackson Liquid level sensor and electrode assembly therefor
JPS5339184A (en) * 1976-09-21 1978-04-10 Omron Tateisi Electronics Co Separately sampling apparatus of blood serum
JPS5339185A (en) * 1976-09-21 1978-04-10 Omron Tateisi Electronics Co Separately sampling apparatus of blood serum
US4099167A (en) * 1977-02-10 1978-07-04 P.R. Mallory & Co. Inc. Capacitive means for measuring the level of a liquid
GB2066961A (en) * 1979-12-28 1981-07-15 Cardno P G N Electronic capacitive liquid level gauge
US4326851A (en) * 1980-10-24 1982-04-27 Coulter Electronics, Inc. Level sensor apparatus and method
NO156305C (no) * 1982-09-17 1987-08-26 Tanksystem As Anordning for registrering av nivaa, overgangssoner og temperatur.
JPS60108754A (ja) * 1983-11-18 1985-06-14 Shimadzu Corp リンパ球液分取装置
US4736638A (en) * 1985-12-20 1988-04-12 Beckman Instruments, Inc. Liquid level sensor
JPH0833320B2 (ja) * 1986-03-20 1996-03-29 株式会社東芝 自動化学分析装置
US4873875A (en) * 1986-06-27 1989-10-17 Prism Technology, Inc. System for optically interrogating liquid samples and for withdrawing selected sample portions
US4829837A (en) * 1988-01-28 1989-05-16 Shell Oil Company Robotic liquid separation sensing using a cannula

Also Published As

Publication number Publication date
US4977786A (en) 1990-12-18
EP0438158B1 (de) 1993-12-15
JPH04218725A (ja) 1992-08-10
DE69100755D1 (de) 1994-01-27
CA2034549A1 (en) 1991-07-19
EP0438158A1 (de) 1991-07-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DADE CHEMISTRY SYSTEMS INC. (N.D.GES.D. STAATES DE

8327 Change in the person/name/address of the patent owner

Owner name: DADE BEHRING, INC.(N.D.GES.DES STAATES DELAWARE),

8339 Ceased/non-payment of the annual fee