FR2300341A1 - Procede et appareil de detection de pailles par courants de foucault - Google Patents

Procede et appareil de detection de pailles par courants de foucault

Info

Publication number
FR2300341A1
FR2300341A1 FR7603347A FR7603347A FR2300341A1 FR 2300341 A1 FR2300341 A1 FR 2300341A1 FR 7603347 A FR7603347 A FR 7603347A FR 7603347 A FR7603347 A FR 7603347A FR 2300341 A1 FR2300341 A1 FR 2300341A1
Authority
FR
France
Prior art keywords
fault
feed
eddy currents
straws
detection
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
FR7603347A
Other languages
English (en)
French (fr)
Other versions
FR2300341B1 (show.php
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan 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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of FR2300341A1 publication Critical patent/FR2300341A1/fr
Application granted granted Critical
Publication of FR2300341B1 publication Critical patent/FR2300341B1/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
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals
    • 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
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
FR7603347A 1975-02-07 1976-02-06 Procede et appareil de detection de pailles par courants de foucault Granted FR2300341A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50015369A JPS5190875A (en) 1975-02-07 1975-02-07 Karyutanshoho oyobi sonosochi

Publications (2)

Publication Number Publication Date
FR2300341A1 true FR2300341A1 (fr) 1976-09-03
FR2300341B1 FR2300341B1 (show.php) 1979-08-24

Family

ID=11886863

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7603347A Granted FR2300341A1 (fr) 1975-02-07 1976-02-06 Procede et appareil de detection de pailles par courants de foucault

Country Status (3)

Country Link
JP (1) JPS5190875A (show.php)
DE (1) DE2604498A1 (show.php)
FR (1) FR2300341A1 (show.php)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940265B2 (ja) * 1978-02-13 1984-09-28 日本鋼管株式会社 熱ビレツト渦流探傷装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2300341B1 (show.php) 1979-08-24
JPS5190875A (en) 1976-08-09
DE2604498A1 (de) 1976-08-19

Similar Documents

Publication Publication Date Title
GB1374717A (en) Method and apparatus for determing moisture content of tobacco
ES445837A1 (es) Un sistema indicador de humedad.
ATE30642T1 (de) Schaltung mit magnetfeldsensor zum messen eines magnetfeldes.
GB1130870A (en) Method and apparatus for detecting and measuring cracks in metal structures
FR2300341A1 (fr) Procede et appareil de detection de pailles par courants de foucault
GB1161106A (en) An Electroinductive Sensing Device.
GB1468852A (en) Method and device for eddy-current detection of a change in magnetic behaviour of a material
JPS55113949A (en) Flaw detector for cast iron pipe
GB1372109A (en) Electromagnetic flaw detector
GB910496A (en) Improvements in or relating to the detection of electrical discontinuities in weldedjoints
SU136941A1 (ru) Способ измерени давлени газов
SU148533A1 (ru) Прибор с датчиком дл бесконтактного контрол размеров металлических изделий способом вихревых токов
JPS56122938A (en) Flaw detecting method and defectoscope
JPS5640754A (en) Cavitation detecting method using ae sensor
SU896528A1 (ru) Устройство дл измерени ширины трещины в стальной ленте
JPS5739344A (en) Eddy current flaw detector
DE3783869D1 (de) Flusskompensierter stromwandler.
JPS5574472A (en) Device for measuring conductivity of fluid
SU130191A1 (ru) Электромагнитный прибор дл контрол толщины металлических изделий
SU1677605A1 (ru) Вихретоковый структуроскоп
JPS55144557A (en) Surface potentiometer
JPS5269393A (en) Bacteria inspecting device
GB1380249A (en) Method and circuit for eddy-current testing
SU669284A1 (ru) Вихретоковый дефектоскоп
JPS5385449A (en) Zero point detecting system

Legal Events

Date Code Title Description
ST Notification of lapse