GB1501890A - Conductivity monitoring system - Google Patents

Conductivity monitoring system

Info

Publication number
GB1501890A
GB1501890A GB43684/75A GB4368475A GB1501890A GB 1501890 A GB1501890 A GB 1501890A GB 43684/75 A GB43684/75 A GB 43684/75A GB 4368475 A GB4368475 A GB 4368475A GB 1501890 A GB1501890 A GB 1501890A
Authority
GB
United Kingdom
Prior art keywords
amplifier
fed
thermistor
conductivity
electrodes
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
Application number
GB43684/75A
Other languages
English (en)
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.)
Baxter International Inc
Original Assignee
Baxter Travenol Laboratories Inc
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
Priority claimed from US05/547,319 external-priority patent/US3979665A/en
Priority claimed from US05/547,320 external-priority patent/US3953790A/en
Application filed by Baxter Travenol Laboratories Inc filed Critical Baxter Travenol Laboratories Inc
Publication of GB1501890A publication Critical patent/GB1501890A/en
Expired 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
    • 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
    • G01N27/10—Investigation or analysis specially adapted for controlling or monitoring operations or for signalling

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (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)
  • Investigating Or Analysing Biological Materials (AREA)
GB43684/75A 1974-10-31 1975-10-23 Conductivity monitoring system Expired GB1501890A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US51972974A 1974-10-31 1974-10-31
US05/547,319 US3979665A (en) 1975-02-05 1975-02-05 Conductivity monitoring system
US05/547,320 US3953790A (en) 1974-10-31 1975-02-05 Conductivity monitoring system

Publications (1)

Publication Number Publication Date
GB1501890A true GB1501890A (en) 1978-02-22

Family

ID=27414736

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43684/75A Expired GB1501890A (en) 1974-10-31 1975-10-23 Conductivity monitoring system

Country Status (14)

Country Link
JP (1) JPS5167193A (it)
AR (1) AR207791A1 (it)
AU (1) AU8622375A (it)
BR (1) BR7507188A (it)
CH (1) CH600348A5 (it)
DE (1) DE2546553A1 (it)
DK (1) DK482875A (it)
FR (1) FR2289918A1 (it)
GB (1) GB1501890A (it)
IE (1) IE41733B1 (it)
IL (1) IL48202A (it)
IT (1) IT1045493B (it)
NL (1) NL7512811A (it)
SE (1) SE7512196L (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2297843A (en) * 1995-02-13 1996-08-14 Spirax Sarco Ltd Conductivity sensing apparatus
WO2019068166A1 (en) * 2017-10-04 2019-04-11 Packers Plus Energy Services, Inc. ADVANCED INPUT FLOW CONTROL SYSTEM

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2537872C2 (de) * 1975-08-26 1985-01-17 Kieninger & Obergfell, Fabrik für technische Laufwerke und Apparate GmbH & Co, 7742 St Georgen Drehpendel
JP2006138737A (ja) * 2004-11-12 2006-06-01 Fanuc Ltd 比抵抗検出器及び比抵抗検出装置
DE102013108505A1 (de) * 2013-08-07 2015-03-05 Emitec Denmark A/S Verfahren zum Bestimmen der Qualität von Reduktionsmittel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2297843A (en) * 1995-02-13 1996-08-14 Spirax Sarco Ltd Conductivity sensing apparatus
GB2297843B (en) * 1995-02-13 1998-08-12 Spirax Sarco Ltd Conductivity sensing apparatus
WO2019068166A1 (en) * 2017-10-04 2019-04-11 Packers Plus Energy Services, Inc. ADVANCED INPUT FLOW CONTROL SYSTEM

Also Published As

Publication number Publication date
IL48202A0 (en) 1975-11-25
IT1045493B (it) 1980-05-10
AU8622375A (en) 1977-05-05
NL7512811A (nl) 1976-05-04
CH600348A5 (it) 1978-06-15
DE2546553A1 (de) 1976-05-06
FR2289918A1 (fr) 1976-05-28
IL48202A (en) 1978-08-31
BR7507188A (pt) 1976-08-31
DK482875A (da) 1976-05-01
IE41733L (en) 1976-04-30
IE41733B1 (en) 1980-03-12
JPS5167193A (it) 1976-06-10
SE7512196L (sv) 1976-06-24
AR207791A1 (es) 1976-10-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee