GB1403734A - Testing of materials - Google Patents

Testing of materials

Info

Publication number
GB1403734A
GB1403734A GB3956472A GB3956472A GB1403734A GB 1403734 A GB1403734 A GB 1403734A GB 3956472 A GB3956472 A GB 3956472A GB 3956472 A GB3956472 A GB 3956472A GB 1403734 A GB1403734 A GB 1403734A
Authority
GB
United Kingdom
Prior art keywords
signal
phase
aug
subtracted
coupled
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
Application number
GB3956472A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1403734A publication Critical patent/GB1403734A/en
Expired 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
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/023—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil

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)
  • Measurement Of Resistance Or Impedance (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
GB3956472A 1971-08-24 1972-08-24 Testing of materials Expired GB1403734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712142351 DE2142351C3 (de) 1971-08-24 1971-08-24 Vorrichtung zur Verwechslungs- und Gefugeprüfung von ferromagnetischen Werkstoffen

Publications (1)

Publication Number Publication Date
GB1403734A true GB1403734A (en) 1975-08-28

Family

ID=5817630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3956472A Expired GB1403734A (en) 1971-08-24 1972-08-24 Testing of materials

Country Status (2)

Country Link
DE (1) DE2142351C3 (de)
GB (1) GB1403734A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5210492A (en) * 1991-04-22 1993-05-11 Tokyo Gas Co., Ltd. Remote field eddy current flaw detector for metal pipes having a pair of receiver coils providing a differential offset amplitude signal
GB2281398A (en) * 1991-04-22 1995-03-01 Tokyo Gas Co Ltd Eddy current flaw detector
US5689183A (en) * 1994-08-11 1997-11-18 Kaisei Engineer Co., Ltd. Electromagnetic-induction type inspection device employing two induction coils connected in opposite phase relation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3435442A1 (de) * 1984-09-27 1986-03-27 Nukem Gmbh, 6450 Hanau Verfahren und vorrichtung zur zerstoerungsfreien pruefung ferromagnetischer koerper mittels magnetisierung
DE3935130A1 (de) * 1989-10-19 1991-05-02 Mannesmann Ag Verfahren zur verwechslungspruefung von werkstuecken aus stahl

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5210492A (en) * 1991-04-22 1993-05-11 Tokyo Gas Co., Ltd. Remote field eddy current flaw detector for metal pipes having a pair of receiver coils providing a differential offset amplitude signal
US5365169A (en) * 1991-04-22 1994-11-15 Tokyo Gas Co., Ltd. Remote field eddy current flaw detector for metal material including attenuator, adder, phase shiftery and phase comparator
GB2281398A (en) * 1991-04-22 1995-03-01 Tokyo Gas Co Ltd Eddy current flaw detector
GB2281398B (en) * 1991-04-22 1995-08-16 Tokyo Gas Co Ltd Flaw detector for metal material
GB2255184B (en) * 1991-04-22 1995-08-16 Tokyo Gas Co Ltd Flaw detector for metal material
US5461312A (en) * 1991-04-22 1995-10-24 Tokyo Gas Co., Ltd. Remote field eddy current sensor for detecting flaws in metal material
US5689183A (en) * 1994-08-11 1997-11-18 Kaisei Engineer Co., Ltd. Electromagnetic-induction type inspection device employing two induction coils connected in opposite phase relation

Also Published As

Publication number Publication date
DE2142351A1 (de) 1973-03-08
DE2142351B2 (de) 1978-09-07
DE2142351C3 (de) 1979-05-03

Similar Documents

Publication Publication Date Title
GB1066517A (en) Static and dynamic magnetic reaction testing apparatus
GB1401689A (en) Level gauge of liquid metal
GB1403734A (en) Testing of materials
PT68092A (en) Process for measuring and measuring equipment to. determine the homogeneity of magnetic dispersions
GB573182A (en) Improvements in or relating to the detection of faults in articles of non-magnetic material
CA1000360A (en) Method of measuring magnetic fields and magnetometer for performing the method
GB526805A (en) Improvements in and relating to devices for detecting magnetic metal
GB715750A (en) Improvements in and relating to measuring instruments
JPS5753604A (en) Thickness gauge
SU564513A1 (ru) Способ измерени толщины крупногабаритных немагнитных изделий
GB1184663A (en) Improvements in or relating to Magnetic Detecting Apparatus.
JPS5739344A (en) Eddy current flaw detector
GB1067677A (en) Improvements in and relating to magnetic transducers
SU587424A1 (ru) Способ измерени коэрцитивной силы ферромагнитных изделий
SU373511A1 (ru) Способ измерения геометрических параметров изделий из ферромагнитных материалов
PRUETT UK-4 flight spacecraft magnetic tests(Magnetic tests of UK 4 spacecraft to determine magnetic characteristics and to provide desirable magnetic conditions)
GB866202A (en) An electromagnetic extensometer
AU231359B2 (en) Arrangement for measuring the hysteresis and eddy current losses of sheets of ferromagnetic material
GB1063639A (en) Improvements in or relating to a method and device for measuring forces by application of the hall effect
CA476495A (en) Means for the detection and measurement of magnetic fields
JPS5740606A (en) Bearing indicator
AU4579759A (en) Arrangement for measuring the hysteresis and eddy current losses of sheets of ferromagnetic material
JPS5273780A (en) Stress measuring device
FR1002010A (fr) Perfectionnements aux appareils de mesure et d'enregistrement de champs électromagnétiques
Cabannes Visualization of the Impedance Diagram for a Study of Materials by Means of Eddy Currents

Legal Events

Date Code Title Description
PS Patent sealed