[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

FR2430608A1 - Procede et appareil pour la mesure de la resistance a la corrosion d'une protection recouvrant un corps metallique - Google Patents

Procede et appareil pour la mesure de la resistance a la corrosion d'une protection recouvrant un corps metallique

Info

Publication number
FR2430608A1
FR2430608A1 FR7820166A FR7820166A FR2430608A1 FR 2430608 A1 FR2430608 A1 FR 2430608A1 FR 7820166 A FR7820166 A FR 7820166A FR 7820166 A FR7820166 A FR 7820166A FR 2430608 A1 FR2430608 A1 FR 2430608A1
Authority
FR
France
Prior art keywords
admittance
phase
variable frequency
quadrature components
digital techniques
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
FR7820166A
Other languages
English (en)
Other versions
FR2430608B1 (fr
Inventor
Claude Guebin
Raymond Perrier
Michel Keddam
Hisasi Takenouti
Claude Gabriel Gabrielli
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.)
Airbus Group SAS
Original Assignee
Airbus Group SAS
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 Airbus Group SAS filed Critical Airbus Group SAS
Priority to FR7820166A priority Critical patent/FR2430608A1/fr
Publication of FR2430608A1 publication Critical patent/FR2430608A1/fr
Application granted granted Critical
Publication of FR2430608B1 publication Critical patent/FR2430608B1/fr
Granted legal-status Critical Current

Links

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

Procédé et appareil pour la mesure de la résistance à la corrosion d'une protection recouvrant un corps métallique dans lesquels le corps est plongé dans une solution électrolytique corrosive de composition déterminée et soumis à un potentiel électrique correspondant à son potentiel de corrosion à courant nul et selon lequel on mesure pour différentes fréquences d'une tension alternative d'amplitude constante une caractéristique électrique de l'interface métal-électrolyte. Selon l'invention, on effectue la mesure de l'admittance de ladite interface métal-électrolyte pour chacune desdites fréquences après quoi pour chaque mesure effectuée on détermine les parties réelle et imaginaire de ladite admittance, puis on extrapole à partir des couples de valeurs réelle et imaginaire ainsi obtenus la valeur de ladite admittance à fréquence nulle. Mesure de la résistance à la corrosion des alliages légers protégés par anodisation.
FR7820166A 1978-07-06 1978-07-06 Procede et appareil pour la mesure de la resistance a la corrosion d'une protection recouvrant un corps metallique Granted FR2430608A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7820166A FR2430608A1 (fr) 1978-07-06 1978-07-06 Procede et appareil pour la mesure de la resistance a la corrosion d'une protection recouvrant un corps metallique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7820166A FR2430608A1 (fr) 1978-07-06 1978-07-06 Procede et appareil pour la mesure de la resistance a la corrosion d'une protection recouvrant un corps metallique

Publications (2)

Publication Number Publication Date
FR2430608A1 true FR2430608A1 (fr) 1980-02-01
FR2430608B1 FR2430608B1 (fr) 1981-07-31

Family

ID=9210406

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7820166A Granted FR2430608A1 (fr) 1978-07-06 1978-07-06 Procede et appareil pour la mesure de la resistance a la corrosion d'une protection recouvrant un corps metallique

Country Status (1)

Country Link
FR (1) FR2430608A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293155A (en) * 1965-07-12 1966-12-20 Ford Motor Co Method for determining the corrosion resistance of anodized aluminum parts
US3331021A (en) * 1962-12-31 1967-07-11 Union Oil Co A. c. corrosion-rate meter and method
US3746975A (en) * 1971-08-20 1973-07-17 Drexelbrook Controls Measuring characteristics of materials by using susceptive and conductive components of admittance
GB1493695A (en) * 1975-10-11 1977-11-30 Texaco Belgium Nv Sa Measurement of corrosion protection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331021A (en) * 1962-12-31 1967-07-11 Union Oil Co A. c. corrosion-rate meter and method
US3293155A (en) * 1965-07-12 1966-12-20 Ford Motor Co Method for determining the corrosion resistance of anodized aluminum parts
US3746975A (en) * 1971-08-20 1973-07-17 Drexelbrook Controls Measuring characteristics of materials by using susceptive and conductive components of admittance
GB1493695A (en) * 1975-10-11 1977-11-30 Texaco Belgium Nv Sa Measurement of corrosion protection

Also Published As

Publication number Publication date
FR2430608B1 (fr) 1981-07-31

Similar Documents

Publication Publication Date Title
Kosterich et al. Dielectric properties of fluid-saturated bone-the effect of variation in conductivity of immersion fluid
ATE40753T1 (de) Verfahren zur bestimmung der konzentration elektrochemisch umsetzbarer stoffe.
JPS57192855A (en) Oxygen concentration detector
ES437984A1 (es) Procedimiento e instalacion para la determinacion en conti- nuo de la resistencia interna de una cuba electrolitica.
FR2430608A1 (fr) Procede et appareil pour la mesure de la resistance a la corrosion d'une protection recouvrant un corps metallique
JPS5644858A (en) Voltage measuring device
Cummings et al. Construction, operation and evaluation of a rapid-response potentiostat
EP0061544A1 (fr) Méthode et appareil pour la mesure du contenu en liquide d'un mélange de fluides
Paatsch New Results of Reflection Spectroscopy on Metallic Electrodes
SU1562824A1 (ru) Устройство дл определени импеданса электротехнических асбестовых материалов
JPS5712359A (en) Enzyme electrode
JPS5461983A (en) Measurement method of oxidation-reduction potentials and electrode used for the same
JPS5486378A (en) Surface electrometer
JPS56162042A (en) Liquid resistance compensating circuit in polarization measuring circuit
SU714267A1 (ru) Способ контрол удельного электрического сопротивлени издели
JPS54147878A (en) Lower noise preamplifier of ac type surface electrometer
SU669284A1 (ru) Вихретоковый дефектоскоп
SU819665A1 (ru) Способ определени коррозионнойАКТиВНОСТи ВлАжНыХ гАзОВ
JPS56150363A (en) Frequency voltage convertion circuit
SU752564A1 (ru) Способ определени внутренних утечек электрохимического источника тока
SU1694698A1 (ru) Устройство дл измерени максимальной скорости коррозии магистральных трубопроводов
SU728066A1 (ru) Устройство дл измерени потенциала электрода при электрохимических исследовани х
Číhal Potentiodynamic methods of following up intercrystalline corrosion
JPS56126759A (en) Impressed-voltage compensation type electrolytic analysis device
JPS54121777A (en) Current applying voltage measuring circuit

Legal Events

Date Code Title Description
ST Notification of lapse