FR888093A - Improvements to magnetic control devices, in particular for measuring the thickness of a non-magnetic layer on a magnetic metal support - Google Patents

Improvements to magnetic control devices, in particular for measuring the thickness of a non-magnetic layer on a magnetic metal support

Info

Publication number
FR888093A
FR888093A FR888093DA FR888093A FR 888093 A FR888093 A FR 888093A FR 888093D A FR888093D A FR 888093DA FR 888093 A FR888093 A FR 888093A
Authority
FR
France
Prior art keywords
magnetic
measuring
thickness
control devices
metal support
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
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.)
GEN MECANIQUE APPLIQUEE SOC IN
Industrielle Generale de Mecanique Appliquee SIGMA SA
Original Assignee
GEN MECANIQUE APPLIQUEE SOC IN
Industrielle Generale de Mecanique Appliquee SIGMA SA
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 GEN MECANIQUE APPLIQUEE SOC IN, Industrielle Generale de Mecanique Appliquee SIGMA SA filed Critical GEN MECANIQUE APPLIQUEE SOC IN
Application granted granted Critical
Publication of FR888093A publication Critical patent/FR888093A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
    • G01B7/105—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance for measuring thickness of coating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR888093D 1942-03-31 1942-03-31 Improvements to magnetic control devices, in particular for measuring the thickness of a non-magnetic layer on a magnetic metal support Expired FR888093A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR888093T 1942-03-31

Publications (1)

Publication Number Publication Date
FR888093A true FR888093A (en) 1943-12-02

Family

ID=9376542

Family Applications (1)

Application Number Title Priority Date Filing Date
FR888093D Expired FR888093A (en) 1942-03-31 1942-03-31 Improvements to magnetic control devices, in particular for measuring the thickness of a non-magnetic layer on a magnetic metal support

Country Status (1)

Country Link
FR (1) FR888093A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091429A1 (en) * 1981-10-14 1983-10-19 Combustion Eng Clad thickness measuring device.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091429A1 (en) * 1981-10-14 1983-10-19 Combustion Eng Clad thickness measuring device.
EP0091429A4 (en) * 1981-10-14 1984-05-17 Combustion Eng Clad thickness measuring device.
US4507609A (en) * 1981-10-14 1985-03-26 Combustion Engineering, Inc. Apparatus for nondestructively measuring the thickness of a magnetic flux conductive clad material over a magnetic flux conductive base material of a different permeability

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