GB1517697A - Creation of Inventions and Patents with Artificial Intelligence

GB1517697A – Measuring cells for measuring electrical conductivity of liquids
– Google Patents

GB1517697A – Measuring cells for measuring electrical conductivity of liquids
– Google Patents
Measuring cells for measuring electrical conductivity of liquids

Info

Publication number
GB1517697A

GB1517697A
GB34210/74A
GB3421074A
GB1517697A
GB 1517697 A
GB1517697 A
GB 1517697A
GB 34210/74 A
GB34210/74 A
GB 34210/74A
GB 3421074 A
GB3421074 A
GB 3421074A
GB 1517697 A
GB1517697 A
GB 1517697A
Authority
GB
United Kingdom
Prior art keywords
electrode
electrodes
voltage
amplifier
liquid
Prior art date
1974-08-02
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

Application number
GB34210/74A
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.)

Elster Metering Holdings Ltd

Original Assignee
George Kent Ltd
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.)
1974-08-02
Filing date
1974-08-02
Publication date
1978-07-12

1974-08-02
Application filed by George Kent Ltd
filed
Critical
George Kent Ltd

1974-08-02
Priority to GB34210/74A
priority
Critical
patent/GB1517697A/en

1975-07-21
Priority to US05/597,915
priority
patent/US3993945A/en

1975-07-30
Priority to DE2533943A
priority
patent/DE2533943C2/en

1975-08-01
Priority to NLAANVRAGE7509233,A
priority
patent/NL188369C/en

1975-08-01
Priority to JP50093223A
priority
patent/JPS5846698B2/en

1978-07-12
Publication of GB1517697A
publication
Critical
patent/GB1517697A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

G—PHYSICS

G01—MEASURING; TESTING

G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means

G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance

G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance

G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid

G01N27/07—Construction of measuring vessels; Electrodes therefor

Abstract

1517697 Conductivity measurement GEORGE KENT Ltd 22 July 1975 [2 Aug 1974] 34210/74 Heading G1N Liquid conductivity is measured in a cell comprising co-axial annular electrodes by determining the alternating current between two electrodes 1, 4 necessary to maintain constant the voltage between electrodes 2, 3, a fifth electrode 5 being located on the side of electrode 1 remote from the voltage electrodes 2, 3 and connected to electrode 1 by an amplifier which presents a low impedance to electrode 5 and a high impedance to electrode 1. Leakage from the fifth electrode thus connected does not affect the measurement. Preferably a sixth electrode 6, placed on the side of electrode 5 remote from the other electrodes and connected to electrode 4 and earth is also provided as an earth return path for leakage from electrode 5. As shown, the voltage between electrodes 2 and 3 is compared at 26 with a reference 28 and the difference drives voltage controlled generator 16 to alter the current supplied between cell electrodes 1, 4 by secondary 12. The current passes through resistors 18, 20 and the voltage across these, which is a measure of the liquid conductivity is amplified at 36, 38, supplied to phase sensitive rectifier 40 which uses the reference voltage from amplifier 24 as a reference and the output is smoothed at 42. Temperature compensation. Thermistor 34, in parallel with resistor 20, is arranged in the liquid. Alternatively a temperature sensor in the liquid may control the gain of amplifier 36. Range limitation. A portion of the reference voltage may be tapped off from potentiometer 48 and applied to amplifier 38 which then functions as a difference amplifier. This permits improved sensitivity over a small range. Bell construction. The electrode surface is preferably flush with the insulating material of the cell wall. The axial separation between first and fourth, first and fifth, and, fifth and sixth electrodes is preferably equal. The second and third electrodes are preferably symmetrically located between the first and fourth electrodes and mutually spaced by half the first and fourth electrode separation.

GB34210/74A
1974-08-02
1974-08-02
Measuring cells for measuring electrical conductivity of liquids

Expired

GB1517697A
(en)

Priority Applications (5)

Application Number
Priority Date
Filing Date
Title

GB34210/74A

GB1517697A
(en)

1974-08-02
1974-08-02
Measuring cells for measuring electrical conductivity of liquids

US05/597,915

US3993945A
(en)

1974-08-02
1975-07-21
Measuring cells for measuring electrical conductivity of liquids

DE2533943A

DE2533943C2
(en)

1974-08-02
1975-07-30

Measuring cell for determining the electrical conductivity of liquids

NLAANVRAGE7509233,A

NL188369C
(en)

1974-08-02
1975-08-01

MEASURING DEVICE FOR THE ELECTRICAL CONDUCTIVITY OF LIQUIDS.

JP50093223A

JPS5846698B2
(en)

1974-08-02
1975-08-01

Liquid conductivity measuring device

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

GB34210/74A

GB1517697A
(en)

1974-08-02
1974-08-02
Measuring cells for measuring electrical conductivity of liquids

Publications (1)

Publication Number
Publication Date

GB1517697A
true

GB1517697A
(en)

1978-07-12

Family
ID=10362775
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB34210/74A
Expired

GB1517697A
(en)

1974-08-02
1974-08-02
Measuring cells for measuring electrical conductivity of liquids

Country Status (5)

Country
Link

US
(1)

US3993945A
(en)

JP
(1)

JPS5846698B2
(en)

DE
(1)

DE2533943C2
(en)

GB
(1)

GB1517697A
(en)

NL
(1)

NL188369C
(en)

Cited By (5)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2000299B
(en)

1977-06-24
1982-03-03
Bactomatic Inc
Detecting metabolic activity

GB2437174A
(en)

2006-04-11
2007-10-17
Futuretec Technologies Ltd
Measuring the conductivity of fluid flowing through a conduit

WO2008068484A1
(en)

2006-12-06
2008-06-12
Abb Limited
Conductivity sensor

GB2530601A
(en)

2014-09-29
2016-03-30
Iphase Ltd
Method and apparatus for monitoring of the multiphase flow in a pipe

RU2648974C1
(en)

2016-10-21
2018-03-28
Федеральное государственное бюджетное образовательное учреждение высшего образования “Башкирский государственный университет”
Method and device for recognition of different modes of gas-liquid flow in the horizontal pipeline

Families Citing this family (50)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4118663A
(en)

1977-10-11
1978-10-03
Thomas-Barben Instruments
Four electrode conductivity sensor

US4181880A
(en)

1978-03-22
1980-01-01
Teass Horace A Jr
Linear ground conductivity measuring system

US4275352A
(en)

1979-03-05
1981-06-23
Canadian Patents & Dev. Ltd.
Sea water conductivity cell

US4413505A
(en)

1981-03-09
1983-11-08
Environmental Sciences Associates, Inc.
Electrochemical flow cell, particularly use with liquid chromatography

US4404065A
(en)

1980-01-14
1983-09-13
Enviromental Sciences Associates, Inc.
Electrochemical detection system and method of analysis

US4297640A
(en)

1980-02-11
1981-10-27
The Dow Chemical Company
Apparatus for measuring the electric charge condition of non-conductive particles in a mildly conductive electrolyte

US4433299A
(en)

1980-03-07
1984-02-21
Kureha Kagaku Kogyo Kabushiki Kaisha
Method and apparatus for measuring interfacial electrokinetic phenomena

US4362994A
(en)

1980-07-14
1982-12-07
Chemed Corporation
Self alarming five single electrodes conductivity cell

US4497199A
(en)

1981-03-09
1985-02-05
Esa, Inc.
Liquid chromatography

US4446435A
(en)

1982-05-06
1984-05-01
Process Development, Inc.
Ultrasonic streaming current detector

US4511845A
(en)

1982-09-08
1985-04-16
Canadian Patents & Development Limited
Salinometer

JPS6016696U
(en)

1983-07-13
1985-02-04
株式会社　ゼニライトブイ

Top mark for buoy

DE3326397A1
(en)

1983-07-22
1985-01-31
Siemens AG, 1000 Berlin und 8000 München

MEASURING VALUE FOR ELECTROLYTE CONDUCTIVITY

US4751466A
(en)

1987-01-20
1988-06-14
Ford Motor Company
Instrument for on-line measurement of the absolute electrical conductivity of a liquid

US5223114A
(en)

1987-06-17
1993-06-29
Board Of Trustees Of The Leland Stanford Junior University
On-column conductivity detector for microcolumn electrokinetic separations

US4926702A
(en)

1987-09-18
1990-05-22
Beckman Instruments, Inc.
Sample presence detector for automatic sample injector

JPH01154452U
(en)

1988-04-14
1989-10-24

GB8820687D0
(en)

1988-09-01
1988-10-05
Chr Michelsen Inst
Three component ratio measuring instrument

JPH076536Y2
(en)

1988-09-06
1995-02-15
横河電機株式会社

Conductivity meter

JPH0718902B2
(en)

1988-10-19
1995-03-06
株式会社日立製作所

Electrical conductivity detector

DE4137628C1
(en)

1991-11-15
1992-12-03
Fresenius Ag, 6380 Bad Homburg, De

US6058934A
(en)

1995-11-02
2000-05-09
Chiron Diagnostics Corporation
Planar hematocrit sensor incorporating a seven-electrode conductivity measurement cell

JPH1033662A
(en)

1996-07-25
1998-02-10
Kanegafuchi Chem Ind Co Ltd
Ex vivo blood circulating device

US6107803A
(en)

1997-10-31
2000-08-22
Wang; Junli
Streaming current sensor

NL1011540C2
(en)

1999-03-12
2000-10-03
Nmi Van Swinden Lab B V

Measuring cell for measuring the conductivity of liquids and method for measuring the conductivity of a liquid.

EP1174710A4
(en)

2000-02-23
2005-05-04
Organo Corp
Multiple electric conductivity measuring apparatus

FR2806799B1
(en)

2000-03-22
2002-06-21
Schlumberger Services Petrol

DEVICES FOR CHARACTERIZING A CONTINUOUSLY CONDUCTIVE POLYPHASE FLUID

CN1193224C
(en)

2000-03-30
2005-03-16
奥甘诺株式会社
Ion concentration meter

US6404204B1
(en)

2000-05-01
2002-06-11
ARETé ASSOCIATES
Sensor and sensor system for liquid conductivity, temperature and depth

EP1174715A3
(en)

2000-07-13
2004-01-02
National Research Institute For Earth Science And Disaster Prevention
System for measuring amount of specific substance mixed in material under measurement and electrode rod for measurement

US6547529B2
(en)

2001-08-24
2003-04-15
Donald Gross
Dry tank shutdown system for pumps

US7130780B2
(en)

2002-12-13
2006-10-31
The United States Of America As Represented By The Secretary Of The Army
Method and instrument for electronically recording and imaging fluid washover via measuring characteristics of the fluid at multiple locations simultaneously

EP1621876A1
(en)

2004-07-30
2006-02-01
Metroglas AG
Conductivity sensor

WO2006027825A1
(en)

2004-09-06
2006-03-16
Innovative Design & Technology Inc.
Cooling water circulation system and method for removing scale from cooling water circulation system

DE202004019442U1
(en)

2004-12-16
2005-03-10
Bartec Gmbh

Device for determining the degree of filling of a fluid

US7279903B2
(en)

2005-05-02
2007-10-09
Invensys Systems, Inc.
Non-metallic flow-through electrodeless conductivity sensor with leak and temperature detection

US7405572B2
(en)

2005-05-02
2008-07-29
Invensys Systems, Inc.
Non-metallic flow-through electrodeless conductivity sensor and leak detector

DE102006025622A1
(en)

2006-05-24
2007-11-29
E.G.O. Elektro-Gerätebau GmbH

Sensor device for conductivity measurement and method for its operation

DE102006029416A1
(en)

2006-06-27
2008-01-03
Knick Elektronische Messgeräte GmbH & Co. KG
Liquid medium`s conductivity measurement device, has voltage electrodes coupled with one of analog inputs for measurement of electrode potential and determination of potential difference representative for conductivity of medium

WO2011019947A1
(en)

2009-08-14
2011-02-17
Boston Scientific Scimed, Inc.
Medical device comprising a catheter coupled to a conduct ive -fluid detector

DE102010028902A1
(en)

2010-05-11
2011-11-17
Fresenius Medical Care Deutschland Gmbh

Method and device for determining cellular and / or extracellular, in particular macromolecular portions of liquids, preferably of body fluids of living beings

US8525533B2
(en)

2010-09-16
2013-09-03
Fresenius Medical Care Holdings, Inc.
Conductivity detector for fluids

US8860415B2
(en)

2011-05-24
2014-10-14
Sondex Wireline Limited
Method and apparatus for measuring borehole mud resistivity

US9410910B1
(en)

2013-05-23
2016-08-09
D-2 Inc.
Hybrid conductivity sensor

JP6515634B2
(en)

2015-03-27
2019-05-22
東亜ディーケーケー株式会社

Electromagnetic induction type conductivity detector and electromagnetic induction type conductivity meter

DE102015006134A1
(en)

2015-05-12
2016-11-17
Hans-Jörg Wildanger

Leitwertmessystem

DE102015225502B3
(en)

2015-12-16
2016-06-23
Achenbach Buschhütten GmbH & Co. KG

Measuring device and method for measuring the electrical conductivity of a flowing fluid

DE102017116097A1
(en)

2017-07-18
2019-01-24
B. Braun Avitum Ag

Apparatus and method for performing isonatremic dialysis

NL2023979B1
(en)

2019-10-08
2021-04-13
R&R Mechatronics Int B V
Diluting device

CN113030193B
(en)

2021-02-24
2022-06-14
中国核动力研究设计院
High-temperature and high-pressure resistant online conductivity sensor and measurement system

Family Cites Families (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3283240A
(en)

1962-10-22
1966-11-01
Honeywell Inc
Electrical conductivity cell and measuring apparatus

US3701006A
(en)

1970-11-05
1972-10-24
Schlumberger Technology Corp
Methods and apparatus for measuring the electrical resistivity of flowing drilling muds

US3714555A
(en)

1971-05-25
1973-01-30
Honeywell Inc
Conductivity sensor

1974

1974-08-02
GB
GB34210/74A
patent/GB1517697A/en
not_active
Expired

1975

1975-07-21
US
US05/597,915
patent/US3993945A/en
not_active
Expired – Lifetime

1975-07-30
DE
DE2533943A
patent/DE2533943C2/en
not_active
Expired

1975-08-01
JP
JP50093223A
patent/JPS5846698B2/en
not_active
Expired

1975-08-01
NL
NLAANVRAGE7509233,A
patent/NL188369C/en
not_active
IP Right Cessation

Cited By (11)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2000299B
(en)

1977-06-24
1982-03-03
Bactomatic Inc
Detecting metabolic activity

GB2437174A
(en)

2006-04-11
2007-10-17
Futuretec Technologies Ltd
Measuring the conductivity of fluid flowing through a conduit

WO2008068484A1
(en)

2006-12-06
2008-06-12
Abb Limited
Conductivity sensor

CN101636653B
(en)

2006-12-06
2014-07-16
Abb有限公司
Conductivity sensor

US9086357B2
(en)

2006-12-06
2015-07-21
Abb Limited
Conductivity sensor

US9651511B2
(en)

2006-12-06
2017-05-16
Abb Limited
Conductivity sensor

GB2530601A
(en)

2014-09-29
2016-03-30
Iphase Ltd
Method and apparatus for monitoring of the multiphase flow in a pipe

GB2534337A
(en)

2014-09-29
2016-07-27
Iphase Ltd
Method and apparatus for monitoring of the multiphase flow in a pipe

GB2530601B
(en)

2014-09-29
2017-10-18
Iphase Ltd
Method and apparatus for monitoring of the multiphase flow in a pipe

GB2534337B
(en)

2014-09-29
2017-10-18
Iphase Ltd
Method and apparatus for monitoring of the multiphase flow in a pipe

RU2648974C1
(en)

Also Published As

Publication number
Publication date

JPS5139096A
(en)

1976-04-01

NL188369C
(en)

1992-06-01

DE2533943A1
(en)

1976-02-19

DE2533943C2
(en)

1985-03-21

US3993945A
(en)

1976-11-23

NL7509233A
(en)

1976-02-04

NL188369B
(en)

1992-01-02

JPS5846698B2
(en)

1983-10-18

Contact information