GB1501890A - Conductivity monitoring system - Google Patents
Conductivity monitoring systemInfo
- 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
Links
- 238000012544 monitoring process Methods 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 230000003321 amplification Effects 0.000 abstract 1
- 230000002950 deficient Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
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)
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 (enExample) |
| AR (1) | AR207791A1 (enExample) |
| AU (1) | AU8622375A (enExample) |
| BR (1) | BR7507188A (enExample) |
| CH (1) | CH600348A5 (enExample) |
| DE (1) | DE2546553A1 (enExample) |
| DK (1) | DK482875A (enExample) |
| FR (1) | FR2289918A1 (enExample) |
| GB (1) | GB1501890A (enExample) |
| IE (1) | IE41733B1 (enExample) |
| IL (1) | IL48202A (enExample) |
| IT (1) | IT1045493B (enExample) |
| NL (1) | NL7512811A (enExample) |
| SE (1) | SE7512196L (enExample) |
Cited By (3)
| 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 |
| CN116203320A (zh) * | 2023-01-14 | 2023-06-02 | 富柯斯(深圳)科技有限公司 | 一种四电极电导值检测电路 |
Families Citing this family (3)
| 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 |
-
1975
- 1975-01-01 AR AR260856A patent/AR207791A1/es active
- 1975-09-26 IE IE2107/75A patent/IE41733B1/en unknown
- 1975-09-29 IL IL48202A patent/IL48202A/xx unknown
- 1975-10-15 CH CH1337475A patent/CH600348A5/xx not_active IP Right Cessation
- 1975-10-17 DE DE19752546553 patent/DE2546553A1/de not_active Withdrawn
- 1975-10-22 FR FR7532274A patent/FR2289918A1/fr not_active Withdrawn
- 1975-10-23 GB GB43684/75A patent/GB1501890A/en not_active Expired
- 1975-10-23 IT IT28632/75A patent/IT1045493B/it active
- 1975-10-27 DK DK482875A patent/DK482875A/da unknown
- 1975-10-29 JP JP50130947A patent/JPS5167193A/ja active Pending
- 1975-10-30 SE SE7512196A patent/SE7512196L/xx unknown
- 1975-10-31 NL NL7512811A patent/NL7512811A/xx not_active Application Discontinuation
- 1975-10-31 AU AU86223/75A patent/AU8622375A/en not_active Expired
- 1975-10-31 BR BR7507188A patent/BR7507188A/pt unknown
Cited By (4)
| 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 |
| CN116203320A (zh) * | 2023-01-14 | 2023-06-02 | 富柯斯(深圳)科技有限公司 | 一种四电极电导值检测电路 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5167193A (enExample) | 1976-06-10 |
| AR207791A1 (es) | 1976-10-29 |
| IE41733L (en) | 1976-04-30 |
| IE41733B1 (en) | 1980-03-12 |
| IL48202A (en) | 1978-08-31 |
| FR2289918A1 (fr) | 1976-05-28 |
| BR7507188A (pt) | 1976-08-31 |
| DK482875A (da) | 1976-05-01 |
| IT1045493B (it) | 1980-05-10 |
| SE7512196L (sv) | 1976-06-24 |
| NL7512811A (nl) | 1976-05-04 |
| CH600348A5 (enExample) | 1978-06-15 |
| DE2546553A1 (de) | 1976-05-06 |
| AU8622375A (en) | 1977-05-05 |
| IL48202A0 (en) | 1975-11-25 |
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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 |