FI62906C - Foerfarande och anordning foer magnetisk inspektion - Google Patents

Foerfarande och anordning foer magnetisk inspektion Download PDF

Info

Publication number
FI62906C
FI62906C FI771785A FI771785A FI62906C FI 62906 C FI62906 C FI 62906C FI 771785 A FI771785 A FI 771785A FI 771785 A FI771785 A FI 771785A FI 62906 C FI62906 C FI 62906C
Authority
FI
Finland
Prior art keywords
workpiece
magnetic
current
alternating current
direct current
Prior art date
Application number
FI771785A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI771785A (da
FI62906B (fi
Inventor
Amos Earl Holt
William Eugene Lawrie
Albert Stingel Birks
Original Assignee
Babcock & Wilcox Co
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 Babcock & Wilcox Co filed Critical Babcock & Wilcox Co
Publication of FI771785A publication Critical patent/FI771785A/fi
Publication of FI62906B publication Critical patent/FI62906B/fi
Application granted granted Critical
Publication of FI62906C publication Critical patent/FI62906C/fi

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
    • G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
    • 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

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)
  • Measuring Magnetic Variables (AREA)
FI771785A 1976-06-04 1977-06-03 Foerfarande och anordning foer magnetisk inspektion FI62906C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/693,021 US4058762A (en) 1976-06-04 1976-06-04 Method and apparatus for magnetic inspection through adjustable pulsed alternating and direct current magnetic fields
US69302176 1976-06-04

Publications (3)

Publication Number Publication Date
FI771785A FI771785A (da) 1977-12-05
FI62906B FI62906B (fi) 1982-11-30
FI62906C true FI62906C (fi) 1983-03-10

Family

ID=24782990

Family Applications (1)

Application Number Title Priority Date Filing Date
FI771785A FI62906C (fi) 1976-06-04 1977-06-03 Foerfarande och anordning foer magnetisk inspektion

Country Status (15)

Country Link
US (1) US4058762A (da)
JP (1) JPS5316685A (da)
AU (1) AU512325B2 (da)
BE (1) BE855396A (da)
CA (1) CA1096941A (da)
DE (1) DE2725306B2 (da)
DK (1) DK247377A (da)
FI (1) FI62906C (da)
FR (1) FR2353851A1 (da)
GB (1) GB1584671A (da)
IN (1) IN148533B (da)
IT (1) IT1077222B (da)
NL (1) NL7706147A (da)
NO (1) NO771923L (da)
SE (1) SE7706471L (da)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1499209A1 (ru) * 1986-07-02 1989-08-07 Белорусский Политехнический Институт Намагничивающее устройство дл магнитографического контрол изделий
DE4034751A1 (de) * 1990-10-30 1991-05-23 Michael Schulz Verfahren und vorrichtung zur magnetischen risspruefung von nur einseitig zugaenglichen bohrungslaibungen in behaeltnissen der dampf- und druckerzeugungstechnik
US6316845B1 (en) 1999-11-05 2001-11-13 Parker Research Corporation Battery powered AC electromagnetic yoke for magnetic particle inspection
US20080258719A1 (en) * 2007-04-18 2008-10-23 The University Of Houston Apparatus and methods for ferromagnetic wall inspection of tubulars
DE102007024058A1 (de) * 2007-05-22 2008-11-27 Illinois Tool Works Inc., Glenview Vorrichtung und Verfahren zur Prüfmittel-Kontrolle
DE102007024060A1 (de) * 2007-05-22 2008-11-27 Illinois Tool Works Inc., Glenview Vorrichtung und Verfahren zur Prüfmittel-Kontrolle
DE102008048592B4 (de) * 2008-09-23 2010-08-26 Mr-Chemie Gmbh Verstellbarer Handmagnet
UA117542C2 (uk) 2017-06-16 2018-08-10 Олександр Григорович Калениченко Система для визначення структури електромагнітного поля і матеріалу об'єкта і спосіб визначення структури електромагнітного поля і матеріалу об'єкта
US11402352B1 (en) 2019-08-20 2022-08-02 Scan Systems Corp. Apparatus, systems, and methods for inspecting tubulars employing flexible inspection shoes
US11307173B1 (en) 2019-08-20 2022-04-19 Scan Systems Corp. Apparatus, systems, and methods for inspection of tubular goods
US11402351B1 (en) 2019-08-20 2022-08-02 Scan Systems Corp. Apparatus, systems, and methods for discriminate high-speed inspection of tubulars

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA447838A (en) * 1948-04-13 Magnaflux Corporation Method of and apparatus for magnetic testing
US1782462A (en) * 1925-07-06 1930-11-25 Firm Neufeldt & Kuhnke Betr Sg Arrangement for testing magnetizable objects
US1910770A (en) * 1928-02-27 1933-05-23 Kinsley Carl Magnetic testing of masses
US3378762A (en) * 1967-07-05 1968-04-16 Phillip J. Parker Magnetic particle inspection probe with adjustable probe legs and self-contained circuitry for a.c. or d.c. testing

Also Published As

Publication number Publication date
IN148533B (da) 1981-03-28
IT1077222B (it) 1985-05-04
BE855396A (fr) 1977-12-05
JPS5316685A (en) 1978-02-15
AU512325B2 (en) 1980-10-02
FI771785A (da) 1977-12-05
NO771923L (no) 1977-12-06
FR2353851A1 (fr) 1977-12-30
GB1584671A (en) 1981-02-18
FI62906B (fi) 1982-11-30
US4058762A (en) 1977-11-15
DE2725306B2 (de) 1979-06-28
DK247377A (da) 1977-12-05
AU2581777A (en) 1978-12-07
SE7706471L (sv) 1977-12-05
DE2725306A1 (de) 1977-12-08
FR2353851B1 (da) 1981-12-18
CA1096941A (en) 1981-03-03
NL7706147A (nl) 1977-12-06

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MM Patent lapsed

Owner name: THE BABCOCK & WILCOX COMPANY