GB2529538A8 - Conductivity sensing - Google Patents

Conductivity sensing

Info

Publication number
GB2529538A8
GB2529538A8 GB1511636.1A GB201511636A GB2529538A8 GB 2529538 A8 GB2529538 A8 GB 2529538A8 GB 201511636 A GB201511636 A GB 201511636A GB 2529538 A8 GB2529538 A8 GB 2529538A8
Authority
GB
United Kingdom
Prior art keywords
fluid
flanges
detector
inductor
flange
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.)
Granted
Application number
GB1511636.1A
Other versions
GB2529538B (en
GB2529538A (en
GB201511636D0 (en
Inventor
David Harmer
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.)
SOLUMETRIX Ltd
Original Assignee
SOLUMETRIX 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.)
Filing date
Publication date
Application filed by SOLUMETRIX Ltd filed Critical SOLUMETRIX Ltd
Publication of GB201511636D0 publication Critical patent/GB201511636D0/en
Publication of GB2529538A publication Critical patent/GB2529538A/en
Publication of GB2529538A8 publication Critical patent/GB2529538A8/en
Application granted granted Critical
Publication of GB2529538B publication Critical patent/GB2529538B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • G01N27/023—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil
    • G01N27/025—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil a current being generated within the material by induction
    • 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
    • G01N27/08—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid which is flowing continuously
    • 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

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

Measurement of electrical conductivity of a fluid comprises directing fluid along an insulating bore 2 between first and second conductive flanges 3, 4 in contact with the fluid which are coupled by a low impedance pathway 6. A voltage is induced in the fluid via a toroidal inductor 7 at a first position between the flanges, and the current induced in a toroidal detector 8, at a second position between the flanges, by current in the fluid is measured. The inductor and detector are coaxial with the bore. The voltage within the fluid between two electrodes 9, 10 is calculated. The first electrode is located between the first flange and the inductor, the second electrode is located between the detector and the second flange, both electrodes being located sufficiently far from its respective flange to be unaffected by electrical field disturbances in the vicinity of the flanges. A temperature sensor is also disclosed to enable temperature compensation to conductivity measurements when used for calculating dissolved solids content in the fluid.
GB1511636.1A 2014-07-02 2015-07-02 Conductivity sensing Active GB2529538B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1411837.6A GB201411837D0 (en) 2014-07-02 2014-07-02 Conductivity sensing

Publications (4)

Publication Number Publication Date
GB201511636D0 GB201511636D0 (en) 2015-08-19
GB2529538A GB2529538A (en) 2016-02-24
GB2529538A8 true GB2529538A8 (en) 2016-06-01
GB2529538B GB2529538B (en) 2018-04-04

Family

ID=51410551

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1411837.6A Ceased GB201411837D0 (en) 2014-07-02 2014-07-02 Conductivity sensing
GB1511636.1A Active GB2529538B (en) 2014-07-02 2015-07-02 Conductivity sensing

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB1411837.6A Ceased GB201411837D0 (en) 2014-07-02 2014-07-02 Conductivity sensing

Country Status (1)

Country Link
GB (2) GB201411837D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113552176A (en) * 2016-08-19 2021-10-26 埃科莱布美国股份有限公司 Conductivity sensor with void correction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11796362B2 (en) * 2017-03-03 2023-10-24 Schlumberger Technology Corporation Conductivity probe fluid property measurement systems and related methods

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09329633A (en) * 1996-06-07 1997-12-22 Dkk Corp Conductivity meter
DE29813783U1 (en) * 1998-08-01 1998-12-03 Conducta Endress & Hauser Device for measuring conductivity in pipelines with small diameters
FR2806799B1 (en) * 2000-03-22 2002-06-21 Schlumberger Services Petrol DEVICES FOR CHARACTERIZING A CONTINUOUSLY CONDUCTIVE POLYPHASE FLUID

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113552176A (en) * 2016-08-19 2021-10-26 埃科莱布美国股份有限公司 Conductivity sensor with void correction
CN113552176B (en) * 2016-08-19 2024-05-28 埃科莱布美国股份有限公司 Conductivity sensor with void correction

Also Published As

Publication number Publication date
GB2529538B (en) 2018-04-04
GB201411837D0 (en) 2014-08-13
GB2529538A (en) 2016-02-24
GB201511636D0 (en) 2015-08-19

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