FR1403958A - Method and apparatus for measuring the hardness of a ferro-magnetic material - Google Patents

Method and apparatus for measuring the hardness of a ferro-magnetic material

Info

Publication number
FR1403958A
FR1403958A FR978104A FR978104A FR1403958A FR 1403958 A FR1403958 A FR 1403958A FR 978104 A FR978104 A FR 978104A FR 978104 A FR978104 A FR 978104A FR 1403958 A FR1403958 A FR 1403958A
Authority
FR
France
Prior art keywords
ferro
hardness
measuring
magnetic material
magnetic
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
FR978104A
Other languages
French (fr)
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.)
Assembly Products Inc
Original Assignee
Assembly Products Inc
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 Assembly Products Inc filed Critical Assembly Products Inc
Priority to FR978104A priority Critical patent/FR1403958A/en
Application granted granted Critical
Publication of FR1403958A publication Critical patent/FR1403958A/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
    • G01N27/72—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

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)
FR978104A 1964-06-12 1964-06-12 Method and apparatus for measuring the hardness of a ferro-magnetic material Expired FR1403958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR978104A FR1403958A (en) 1964-06-12 1964-06-12 Method and apparatus for measuring the hardness of a ferro-magnetic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR978104A FR1403958A (en) 1964-06-12 1964-06-12 Method and apparatus for measuring the hardness of a ferro-magnetic material

Publications (1)

Publication Number Publication Date
FR1403958A true FR1403958A (en) 1965-06-25

Family

ID=8832261

Family Applications (1)

Application Number Title Priority Date Filing Date
FR978104A Expired FR1403958A (en) 1964-06-12 1964-06-12 Method and apparatus for measuring the hardness of a ferro-magnetic material

Country Status (1)

Country Link
FR (1) FR1403958A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488576A (en) * 1967-06-23 1970-01-06 Hoy O Mcintire Ferromagnetic ball magnetizer and remanence detector
US3488575A (en) * 1967-06-23 1970-01-06 Hoy O Mcintire Ferromagnetic ball magnetizer and remanence detector
FR2478313A1 (en) * 1980-02-07 1981-09-18 Inst Prikladnoi Fiziki Akademi Non-destructive electromagnetic tester for ferromagnetic object - provides magnetisation pulses to test object and measures logarithm of normal components of residual magnetic field gradient
FR2529341A1 (en) * 1982-06-23 1983-12-30 Inst Prikladnoi Fiziki Akademi Ferromagnetic object mechanical characteristics monitor - integrates signal of coil sensing residual field due to two opposed pulsed coils located along object
FR2533703A1 (en) * 1982-09-23 1984-03-30 Inst Prikladnoi Fiziki Akademi Method and device serving to determine the mechanical properties of products in ferromagnetic material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488576A (en) * 1967-06-23 1970-01-06 Hoy O Mcintire Ferromagnetic ball magnetizer and remanence detector
US3488575A (en) * 1967-06-23 1970-01-06 Hoy O Mcintire Ferromagnetic ball magnetizer and remanence detector
FR2478313A1 (en) * 1980-02-07 1981-09-18 Inst Prikladnoi Fiziki Akademi Non-destructive electromagnetic tester for ferromagnetic object - provides magnetisation pulses to test object and measures logarithm of normal components of residual magnetic field gradient
FR2529341A1 (en) * 1982-06-23 1983-12-30 Inst Prikladnoi Fiziki Akademi Ferromagnetic object mechanical characteristics monitor - integrates signal of coil sensing residual field due to two opposed pulsed coils located along object
FR2533703A1 (en) * 1982-09-23 1984-03-30 Inst Prikladnoi Fiziki Akademi Method and device serving to determine the mechanical properties of products in ferromagnetic material

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