GB790429A - Method of and apparatus for gauging cross-sectional areas of ferromagnetic materials - Google Patents

Method of and apparatus for gauging cross-sectional areas of ferromagnetic materials

Info

Publication number
GB790429A
GB790429A GB5733/55A GB573355A GB790429A GB 790429 A GB790429 A GB 790429A GB 5733/55 A GB5733/55 A GB 5733/55A GB 573355 A GB573355 A GB 573355A GB 790429 A GB790429 A GB 790429A
Authority
GB
United Kingdom
Prior art keywords
cross
coils
thickness
energizing
yokes
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
GB5733/55A
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.)
VILLAMOSIPARI KOZPONTI KUTATO
Original Assignee
VILLAMOSIPARI KOZPONTI KUTATO
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 VILLAMOSIPARI KOZPONTI KUTATO filed Critical VILLAMOSIPARI KOZPONTI KUTATO
Publication of GB790429A publication Critical patent/GB790429A/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
    • 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
    • G01B7/32—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring areas

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

790,429. Electric thickness gauges. VILLAMOSIPARI KOZPONTI KUTATO LABORATORIUM. Feb. 25, 1955 [Feb. 27, 1954], No. 5733/55. Class 37. Apparatus for determining the thickness or cross-sectional area of elongated ferromagnetic material comprises A.C.-fed solenoids 46<SP>1</SP> 46<SP>11</SP> (Figs. 1, 3) through which the test material 45 is fed, a meter connected across a predetermined portion 47 of the coils, where the energizing field is homogeneous, giving indications of the thickness or area. The magnetic field may be constrained by U-shaped yokes 48<SP>1</SP>, 48<SP>11</SP>, the shape and number being dependent on the shape of the test material, e.g. six yokes 48<SP>1</SP> to 48<SP>v1</SP> (Fig. 4) for a hexagonal cross-section rod 45, the six energizing coils 461 to 46<SP>v1</SP> being connected in series. The yokes 48 may be displaced laterally over the surface of the material, measurements being taken from a central energizing coil, or the average of the readings from each yoke unit may be obtained. In one embodiment two bell-shaped yokes are used, one on each side of the test material. The measuring instrument may be connected to a separate pick-up coil located in the region of homogeneous field instead of being connected across a portion of the energizing coils. Variations in thickness or cross-sectional area may be determined by duplicating the apparatus, using a standard test piece in the second measuring unit, and connecting the pick-up coils in opposition.
GB5733/55A 1954-02-27 1955-02-25 Method of and apparatus for gauging cross-sectional areas of ferromagnetic materials Expired GB790429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU790429X 1954-02-27

Publications (1)

Publication Number Publication Date
GB790429A true GB790429A (en) 1958-02-12

Family

ID=10980331

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5733/55A Expired GB790429A (en) 1954-02-27 1955-02-25 Method of and apparatus for gauging cross-sectional areas of ferromagnetic materials

Country Status (1)

Country Link
GB (1) GB790429A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124778A (en) * 1982-08-04 1984-02-22 Pa Inc Method and apparatus for magnetically checking the wall thickness of a ferromagnetic element
CN117583219A (en) * 2023-12-04 2024-02-23 江苏甬怡紧固件有限公司 Method and system for coating bolt auxiliary nut by using molybdenum disulfide dry film lubricant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124778A (en) * 1982-08-04 1984-02-22 Pa Inc Method and apparatus for magnetically checking the wall thickness of a ferromagnetic element
CN117583219A (en) * 2023-12-04 2024-02-23 江苏甬怡紧固件有限公司 Method and system for coating bolt auxiliary nut by using molybdenum disulfide dry film lubricant

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