DE69326921T2 - Verfahren und Schaltungen zum Messen der Leitfähigkeit von Lösungen - Google Patents

Verfahren und Schaltungen zum Messen der Leitfähigkeit von Lösungen

Info

Publication number
DE69326921T2
DE69326921T2 DE69326921T DE69326921T DE69326921T2 DE 69326921 T2 DE69326921 T2 DE 69326921T2 DE 69326921 T DE69326921 T DE 69326921T DE 69326921 T DE69326921 T DE 69326921T DE 69326921 T2 DE69326921 T2 DE 69326921T2
Authority
DE
Germany
Prior art keywords
solution
cell
current
capacitance
series capacitance
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 - Lifetime
Application number
DE69326921T
Other languages
English (en)
Other versions
DE69326921D1 (de
Inventor
Frederick K Blades
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.)
Hach Co
Original Assignee
Anatel Corp
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 Anatel Corp filed Critical Anatel Corp
Application granted granted Critical
Publication of DE69326921D1 publication Critical patent/DE69326921D1/de
Publication of DE69326921T2 publication Critical patent/DE69326921T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/22—Measuring resistance of fluids

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
DE69326921T 1992-07-14 1993-07-08 Verfahren und Schaltungen zum Messen der Leitfähigkeit von Lösungen Expired - Lifetime DE69326921T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/913,022 US5260663A (en) 1992-07-14 1992-07-14 Methods and circuits for measuring the conductivity of solutions

Publications (2)

Publication Number Publication Date
DE69326921D1 DE69326921D1 (de) 1999-12-09
DE69326921T2 true DE69326921T2 (de) 2000-06-15

Family

ID=25432858

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69326921T Expired - Lifetime DE69326921T2 (de) 1992-07-14 1993-07-08 Verfahren und Schaltungen zum Messen der Leitfähigkeit von Lösungen

Country Status (7)

Country Link
US (2) US5260663A (de)
EP (1) EP0580326B1 (de)
JP (1) JPH06186187A (de)
AT (1) ATE186405T1 (de)
CA (1) CA2100436C (de)
DE (1) DE69326921T2 (de)
IL (1) IL106196A (de)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5448178A (en) * 1993-11-05 1995-09-05 Nalco Chemical Company Transient technique to determine solution resistance for simple and accurate corrosion rate measurements
US5504430A (en) * 1994-06-29 1996-04-02 Andersson; Lars Method and apparatus of conductivity measurement
US5677190A (en) * 1994-12-14 1997-10-14 Anatel Corporation Cell and circuit for monitoring photochemical reactions
US5708363A (en) * 1995-10-16 1998-01-13 Signet Scientific Company Liquid conductivity measurement system using a variable-frequency AC voltage
JP3520669B2 (ja) * 1996-05-29 2004-04-19 日本インテック株式会社 電解流路水の導電率測定装置
CA2267281A1 (en) * 1996-10-03 1998-04-09 Ysi Incorporated Conductivity measuring apparatus and method
JP3631347B2 (ja) * 1997-01-17 2005-03-23 日本インテック株式会社 電解水の導電率測定制御回路
FR2766271B1 (fr) * 1997-07-16 1999-10-01 Zellweger Analytics Procede et dispositif de mesure de la conductivite d'une solution assurant le controle de la polarisation des electrodes
US5872454A (en) * 1997-10-24 1999-02-16 Orion Research, Inc. Calibration procedure that improves accuracy of electrolytic conductivity measurement systems
US20020004694A1 (en) * 1997-12-05 2002-01-10 Cameron Mcleod Modular automotive diagnostic system
WO1999054796A1 (en) * 1998-04-07 1999-10-28 Envirofoam Technologies, Inc. Automatic foam solution regulation for compressed-air-foam-systems
US6223129B1 (en) * 1998-05-13 2001-04-24 Diverseylever, Inc. Apparatus and method for conductivity measurement including probe contamination compensation
US6529841B2 (en) 1998-05-13 2003-03-04 Johnson Diversey, Inc. Apparatus and method for conductivity measurement including probe contamination compensation
DE19844489A1 (de) * 1998-09-29 2000-03-30 Conducta Endress & Hauser Verfahren zum Bestimmen der elektrischen Leitfähigkeit von Flüssigkeiten
AUPQ663600A0 (en) * 2000-04-03 2000-05-04 Accent Hydroponics Pty Ltd Electrical conductivity measurement circuit
US6451613B1 (en) 2000-09-06 2002-09-17 Anatel Corporation Instruments for measuring the total organic carbon content of water
US6741084B2 (en) 2000-10-26 2004-05-25 Millipore Corporation Device for measuring the oxidizable carbon of a liquid and a method for the use thereof
US6429660B1 (en) 2000-12-27 2002-08-06 Rosemount Analytical Inc. Process for minimizing cross-talk in diagnostic signals of a pH sensor
US6414493B1 (en) 2001-03-26 2002-07-02 Rosemount Analytical Inc. Toroid conductivity sensor
ATE412899T1 (de) * 2002-06-28 2008-11-15 November Ag Molekulare Medizin Vorrichtung und verfahren zum elektrochemischen nachweis
US7112304B2 (en) * 2003-04-11 2006-09-26 Therm-O-Disc, Incorporated Robust chemiresistor sensor
US20040224417A1 (en) * 2003-05-01 2004-11-11 Ziyi Wang Ultraviolet lamp performance measurement
JP4229885B2 (ja) * 2004-08-18 2009-02-25 株式会社デンソー 容量式物理量検出装置
US7372005B2 (en) * 2004-09-27 2008-05-13 Aos Holding Company Water storage device having a powered anode
WO2007010320A1 (en) * 2005-07-21 2007-01-25 Cnr Consiglio Nazionale Delle Ricerche Method and device for liquid conductivity measurement
CN1821763A (zh) * 2006-03-22 2006-08-23 黄伟忠 一种溶液电导率的测量方法
EP1860432B1 (de) * 2006-05-24 2017-12-13 Bionime GmbH Verfahren zum Betrieb eines Messgeräts und Messgerät
CN100541208C (zh) * 2006-08-30 2009-09-16 梅特勒-托利多仪器（上海）有限公司 溶液电导率的测量方法
US7550979B2 (en) * 2007-05-29 2009-06-23 Georg Fischer Signet Llc System and method for measuring conductivity of fluid
CA2619075A1 (en) * 2007-08-28 2009-02-28 Aos Holding Company Appliance having a safety string
JP4465725B2 (ja) * 2008-04-04 2010-05-19 株式会社デンソー 液体用濃度測定装置
FR2932893B1 (fr) * 2008-06-23 2010-12-10 Millipore Corp Procede et dispositif de mesure de conductivite d'un liquide pur ou ultrapur.
CN101629923B (zh) * 2008-07-14 2013-05-15 梅特勒-托利多仪器（上海）有限公司 电磁式溶液电导率的测量方法及装置
US8242792B2 (en) * 2008-10-30 2012-08-14 Bose Corporation Impedance measurement system and method
JP5201108B2 (ja) * 2008-10-31 2013-06-05 株式会社デンソー 液体性状検出装置
US8552750B2 (en) * 2009-01-29 2013-10-08 D-2, Inc. Apparatus and method for the measurement of electrical conductivity and dielectric constant of high impedance fluids
JP5136452B2 (ja) * 2009-02-10 2013-02-06 株式会社デンソー 液体用濃度測定装置
JP2010210241A (ja) * 2009-03-06 2010-09-24 Denso Corp 液体用濃度測定装置
US20100321036A1 (en) * 2009-06-22 2010-12-23 Delaware Capital Formation, Inc. Dual tone measurement of conductivity and dielectric properties
JP5424773B2 (ja) * 2009-08-06 2014-02-26 ユーテック株式会社 センサ及びこれを備えた浄水器
JP5158067B2 (ja) * 2009-12-22 2013-03-06 株式会社デンソー 液体用濃度測定装置
US9605307B2 (en) 2010-02-08 2017-03-28 Genia Technologies, Inc. Systems and methods for forming a nanopore in a lipid bilayer
US8324914B2 (en) 2010-02-08 2012-12-04 Genia Technologies, Inc. Systems and methods for characterizing a molecule
US9678055B2 (en) 2010-02-08 2017-06-13 Genia Technologies, Inc. Methods for forming a nanopore in a lipid bilayer
US20120052188A1 (en) 2010-02-08 2012-03-01 Genia Technologies, Inc. Systems and methods for assembling a lipid bilayer on a substantially planar solid surface
WO2011100253A2 (en) * 2010-02-11 2011-08-18 Hach Company Carbon quantifying apparatus and method
US8513956B2 (en) * 2010-07-26 2013-08-20 Mettler-Toledo Thornton, Inc. Calibration of conductivity measurement system
CN102087317B (zh) * 2010-11-11 2012-11-07 大连理工大学 电导率阻容网络参数的线性化实时估计方法
US8962242B2 (en) 2011-01-24 2015-02-24 Genia Technologies, Inc. System for detecting electrical properties of a molecular complex
US9354193B2 (en) * 2011-07-20 2016-05-31 Optek-Danulat Gmbh Apparatus for measuring the electrical conductivity of a liquid medium
US8665442B2 (en) 2011-08-18 2014-03-04 Li-Cor, Inc. Cavity enhanced laser based isotopic gas analyzer
US8986629B2 (en) * 2012-02-27 2015-03-24 Genia Technologies, Inc. Sensor circuit for controlling, detecting, and measuring a molecular complex
CN102818936B (zh) * 2012-08-24 2014-09-03 福建师范大学 三角波激励的电导池电极分布电容的动态测定方法
CN102798763B (zh) * 2012-08-24 2014-10-15 福建师范大学 采用两种波形激励信号的溶液电导率的测量方法
CN102809697B (zh) * 2012-08-24 2014-09-03 福建师范大学 三角波激励并对响应电流积分处理的溶液电导率测量方法
CN102830142A (zh) * 2012-08-24 2012-12-19 福建师范大学 一种三角波激励的溶液电导率的测量方法及关键电路
CN102830141B (zh) * 2012-08-24 2014-06-25 福建师范大学 三角波激励的闭式解耦阻容网络的溶液电导率测量方法
CN102890198B (zh) * 2012-10-11 2014-08-27 大连理工大学 电导率二阶阻容耦合网络参数估计方法
KR101412594B1 (ko) * 2012-11-13 2014-06-26 한국수력원자력 주식회사 전기 전도도 측정 방법 및 이를 이용한 전기 전도도 계측 시스템
US9116099B2 (en) * 2012-12-27 2015-08-25 General Electric Company Wide dynamic range conductivity measurements in water
CN103105538B (zh) * 2013-01-05 2015-03-11 大连理工大学 电导率一阶阻容系统参数的动态滤波估计方法
US9759711B2 (en) 2013-02-05 2017-09-12 Genia Technologies, Inc. Nanopore arrays
US9116047B2 (en) 2013-10-11 2015-08-25 Li-Cor, Inc. Systems and methods for controlling the optical path length between a laser and an optical cavity
US9551697B2 (en) 2013-10-17 2017-01-24 Genia Technologies, Inc. Non-faradaic, capacitively coupled measurement in a nanopore cell array
US9417203B2 (en) 2013-12-05 2016-08-16 Bourns, Inc. Conductive liquid property measurement using multiple charge transfer times
US8975610B1 (en) * 2013-12-23 2015-03-10 Intermolecular, Inc. Silicon based selector element
US11022587B2 (en) * 2017-07-07 2021-06-01 Shimadzu Corporation Electric conductivity detector and method for determining phase adjustment value
WO2019073396A1 (en) * 2017-10-11 2019-04-18 Anb Sensors Limited CALIBRATION ELECTRODE
CN112305026B (zh) * 2019-07-26 2023-05-05 佛山市顺德区美的饮水机制造有限公司 检测装置、检测方法、水质检测设备和净水装置
US10605642B1 (en) * 2019-11-27 2020-03-31 Altec Industries, Inc. Conductive liquid sensing system
US11733278B2 (en) 2020-08-27 2023-08-22 Jenariah, Llc Conductivity measurement device
CN114324489B (zh) * 2021-12-20 2024-05-14 中电科芯片技术(集团)有限公司 一种基于电导率测量的溶液离子浓度测量方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470465A (en) * 1966-04-21 1969-09-30 Ca Atomic Energy Ltd Method and means for measuring fluid conductivity including a three electrode arrangement
US3906353A (en) * 1973-10-09 1975-09-16 Westinghouse Electric Corp Oscillator circuit for providing a conductivity ratio of sea water
AT376045B (de) * 1980-09-18 1984-10-10 List Hans Verfahren zur zustandspruefung einer polarographischen messelektrode sowie einrichtung zur durchfuehrung des verfahrens
US4383221A (en) * 1980-10-21 1983-05-10 Millipore Corporation Water resistivity sensor
US4500840A (en) * 1982-10-28 1985-02-19 International Business Machines Corporation High speed, power potentiostat/galvanostat with IR compensation for use with an electrochemical cell
JPS59220638A (ja) * 1983-05-30 1984-12-12 Toshiba Corp 湿度検出装置
US4496454A (en) * 1983-10-19 1985-01-29 Hewlett-Packard Company Self cleaning electrochemical detector and cell for flowing stream analysis
US5275957A (en) 1984-01-10 1994-01-04 Anatel Corporation Instrument and method for measurement of the organic carbon content of water
US4683435A (en) * 1985-01-09 1987-07-28 Anatel Instrument Corporation Circuit for compensating non-linearities in electrolyte conductivity measurement system
FR2581196B1 (fr) 1985-04-26 1988-04-15 Centre Nat Rech Scient Procede et dispositif de mesure de resistivite, notamment pour liquides dielectriques de resistivite tres elevee.
US4825168A (en) * 1986-05-30 1989-04-25 Cobe Laboratories, Inc. Remote conductivity sensor using square wave excitation
US4808930A (en) * 1986-09-03 1989-02-28 Beckman Industrial Corporation Technique of compensating for capacitive effects in conductivity measurements
NL8700744A (nl) * 1987-03-30 1988-10-17 Yokogawa Electrofact Bv Werkwijze en inrichting voor het meten van het geleidingsvermogen van een vloeistof, waarmede de invloed van polarisatie wordt tegengegaan.
JP2546681B2 (ja) * 1987-08-01 1996-10-23 株式会社 堀場製作所 温度補償回路
JPH0429048A (ja) * 1990-05-24 1992-01-31 Kansai Ootomeishiyon Kk 導電率計
US5059908A (en) * 1990-05-31 1991-10-22 Capital Controls Company, Inc. Amperimetric measurement with cell electrode deplating
DE4113033A1 (de) * 1991-04-20 1992-10-22 Fraunhofer Ges Forschung Integrierbare leitfaehigkeitsmessvorrichtung

Also Published As

Publication number Publication date
JPH06186187A (ja) 1994-07-08
US5334940A (en) 1994-08-02
IL106196A0 (en) 1993-10-20
IL106196A (en) 1995-12-08
US5260663A (en) 1993-11-09
EP0580326B1 (de) 1999-11-03
CA2100436C (en) 2003-12-16
DE69326921D1 (de) 1999-12-09
CA2100436A1 (en) 1994-01-15
ATE186405T1 (de) 1999-11-15
EP0580326A1 (de) 1994-01-26

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Legal Events

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8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: FLUEGEL, PREISSNER, KASTEL, 81929 MUENCHEN

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

Owner name: HACH COMPANY,)N.D.GES D.STAATES DELAWARE), GRANTS