FR2354563A1 - Procede et appareil de mesure du courant de corrosion d'une structure immergee munie d'un dispositif de protection cathodique - Google Patents
Procede et appareil de mesure du courant de corrosion d'une structure immergee munie d'un dispositif de protection cathodiqueInfo
- Publication number
- FR2354563A1 FR2354563A1 FR7617601A FR7617601A FR2354563A1 FR 2354563 A1 FR2354563 A1 FR 2354563A1 FR 7617601 A FR7617601 A FR 7617601A FR 7617601 A FR7617601 A FR 7617601A FR 2354563 A1 FR2354563 A1 FR 2354563A1
- Authority
- FR
- France
- Prior art keywords
- measuring
- protection device
- cathodic protection
- magnetic circuit
- corrosion current
- 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
Links
- 238000004210 cathodic protection Methods 0.000 title abstract 2
- 238000005260 corrosion Methods 0.000 title abstract 2
- 230000007797 corrosion Effects 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000012530 fluid Substances 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
- 238000012544 monitoring process Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/04—Controlling or regulating desired parameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/08—Measuring current density
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Ecology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Immunology (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
Procédé et appareil de mesure du courant de corrosion d'une structure de forme allongée immergée dans un fluide et munie d'un dispositif de protection cathodique. L'appareil comprend au moins un circuit magnétique fermé 3 immergé dans le fluide et orienté de manière à pouvoir être traversé par une certaine quantité de courant électrique 6, un enroulement 4 sur ce circuit magnétique, des moyens de mesure 8 branchés aux bornes de cet enroulement et des moyens de modulation (disque tournant percé 5) pour faire varier périodiquement dans le temps la quantité du courant électrique circulant à travers le circuit magnétique 3. L'invention s'applique notamment à la surveillance de pipelines sous-marins.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7617601A FR2354563A1 (fr) | 1976-06-10 | 1976-06-10 | Procede et appareil de mesure du courant de corrosion d'une structure immergee munie d'un dispositif de protection cathodique |
US05/804,315 US4134059A (en) | 1976-06-10 | 1977-06-07 | Method and apparatus for measuring the corrosion current of an immersed structure provided with a cathodic protection device |
NO772004A NO144942C (no) | 1976-06-10 | 1977-06-08 | Em fremgangsmaate og apparat for maaling av en korrosjons-stro |
GB23985/77A GB1584593A (en) | 1976-06-10 | 1977-06-08 | Method and apparatus for measuring the corrosion current of an immersed structure provided with a cathodic protection device |
NL7706329A NL7706329A (nl) | 1976-06-10 | 1977-06-09 | Werkwijze voor het meten van de corrosiestroom en daartoe geschikte inrichting. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7617601A FR2354563A1 (fr) | 1976-06-10 | 1976-06-10 | Procede et appareil de mesure du courant de corrosion d'une structure immergee munie d'un dispositif de protection cathodique |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2354563A1 true FR2354563A1 (fr) | 1978-01-06 |
FR2354563B1 FR2354563B1 (fr) | 1980-10-31 |
Family
ID=9174216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7617601A Granted FR2354563A1 (fr) | 1976-06-10 | 1976-06-10 | Procede et appareil de mesure du courant de corrosion d'une structure immergee munie d'un dispositif de protection cathodique |
Country Status (5)
Country | Link |
---|---|
US (1) | US4134059A (fr) |
FR (1) | FR2354563A1 (fr) |
GB (1) | GB1584593A (fr) |
NL (1) | NL7706329A (fr) |
NO (1) | NO144942C (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0077757A1 (fr) * | 1981-10-16 | 1983-04-27 | Battelle Memorial Institute | Procédé pour détecter les défauts d'un revêtement diélectrique à la surface d'un substrat électriquement conducteur |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4280124A (en) * | 1978-10-12 | 1981-07-21 | Wuertele James W | Corrosion detector |
US4511844A (en) * | 1982-12-10 | 1985-04-16 | Panhandle Eastern Pipe Line Company | E-Log I field computer |
US4536713A (en) * | 1983-03-03 | 1985-08-20 | Nl Industries, Inc. | Electrical resistivity measurement of a flowing drilling fluid using eddy currents generated therein |
US4644285A (en) * | 1984-10-09 | 1987-02-17 | Wayne Graham & Associates International, Inc. | Method and apparatus for direct measurement of current density |
US5202638A (en) * | 1991-04-01 | 1993-04-13 | The United States Of America As Represented By The Secretary Of Agriculture | Power density measuring apparatus and method |
US5156298A (en) * | 1991-04-11 | 1992-10-20 | Eastman Kodak Company | Method and apparatus for detecting a limit of the usable portion of a batch of fluent material flowing in a conduit |
WO2019156584A1 (fr) * | 2018-02-07 | 2019-08-15 | Baker Hughes, A Ge Company, Llc | Procédé de mesure de courant de protection cathodique |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2297568A (en) * | 1939-02-25 | 1942-09-29 | Schlumberger Well Surv Corp | Spontaneous potential by induction |
US2802182A (en) * | 1954-02-01 | 1957-08-06 | Fox Prod Co | Current density responsive apparatus |
US2820947A (en) * | 1955-04-29 | 1958-01-21 | Gunn Ross | Electric field meter |
US2839722A (en) * | 1955-12-21 | 1958-06-17 | Pure Oil Co | Method and apparatus for detecting stray current corrosion |
-
1976
- 1976-06-10 FR FR7617601A patent/FR2354563A1/fr active Granted
-
1977
- 1977-06-07 US US05/804,315 patent/US4134059A/en not_active Expired - Lifetime
- 1977-06-08 GB GB23985/77A patent/GB1584593A/en not_active Expired
- 1977-06-08 NO NO772004A patent/NO144942C/no unknown
- 1977-06-09 NL NL7706329A patent/NL7706329A/xx not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0077757A1 (fr) * | 1981-10-16 | 1983-04-27 | Battelle Memorial Institute | Procédé pour détecter les défauts d'un revêtement diélectrique à la surface d'un substrat électriquement conducteur |
WO1983001514A1 (fr) * | 1981-10-16 | 1983-04-28 | Vermot-Gaud, Jacques | Procede pour detecter les defauts d'un revetement dielectrique a la surface d'un substrat electriquement conducteur |
US4584521A (en) * | 1981-10-16 | 1986-04-22 | Battelle Memorial Institute | Method of detecting the defects in a dielectric coating at the surface of an electrically conductive underlayer |
Also Published As
Publication number | Publication date |
---|---|
NO144942B (no) | 1981-08-31 |
NO772004L (no) | 1977-12-13 |
FR2354563B1 (fr) | 1980-10-31 |
NO144942C (no) | 1981-12-09 |
US4134059A (en) | 1979-01-09 |
GB1584593A (en) | 1981-02-11 |
NL7706329A (nl) | 1977-12-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
TP | Transmission of property | ||
ST | Notification of lapse |