BR8601197A - Transdutor magnetico aperfeicoado de exploracao,eletromagneticamente controlado e processo do seu controle - Google Patents

Transdutor magnetico aperfeicoado de exploracao,eletromagneticamente controlado e processo do seu controle

Info

Publication number
BR8601197A
BR8601197A BR8601197A BR8601197A BR8601197A BR 8601197 A BR8601197 A BR 8601197A BR 8601197 A BR8601197 A BR 8601197A BR 8601197 A BR8601197 A BR 8601197A BR 8601197 A BR8601197 A BR 8601197A
Authority
BR
Brazil
Prior art keywords
exploration
control
magnetic transducer
electromagnetically controlled
perfected
Prior art date
Application number
BR8601197A
Other languages
English (en)
Inventor
Beverley R Gooch
Original Assignee
Ampex
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 Ampex filed Critical Ampex
Publication of BR8601197A publication Critical patent/BR8601197A/pt

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track
    • G11B5/4907—Details for scanning
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
    • G11B5/2452—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track where the dimensions of the effective gap are controlled
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track
    • G11B5/4969—Details for track selection or addressing

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Measuring Magnetic Variables (AREA)
BR8601197A 1985-03-22 1986-03-18 Transdutor magnetico aperfeicoado de exploracao,eletromagneticamente controlado e processo do seu controle BR8601197A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71521185A 1985-03-22 1985-03-22

Publications (1)

Publication Number Publication Date
BR8601197A true BR8601197A (pt) 1986-11-25

Family

ID=24873101

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8601197A BR8601197A (pt) 1985-03-22 1986-03-18 Transdutor magnetico aperfeicoado de exploracao,eletromagneticamente controlado e processo do seu controle

Country Status (5)

Country Link
EP (1) EP0195590B1 (pt)
JP (1) JPS61267904A (pt)
BR (1) BR8601197A (pt)
DE (1) DE3689238T2 (pt)
MX (1) MX162252A (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904530A1 (de) * 1989-02-15 1990-08-16 Konrad Dipl Phys Jaeger Anordnung und verfahren zur magnetischen informations-speicherung
FR2648607B1 (fr) * 1989-06-16 1995-12-15 Thomson Csf Tete magnetique integree d'enregistrement

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL270049A (pt) * 1960-10-25
US3188399A (en) * 1960-11-28 1965-06-08 Ampex Magnetic transducing assembly
US3391254A (en) * 1964-10-15 1968-07-02 William M. Honig Magnetic head with means for producing a shiftable high permeability region in a magnetic permeable material
US3495230A (en) * 1966-04-04 1970-02-10 Sperry Rand Corp Plated wire recording head with selective electronic switching to individual tracks
GB1141726A (en) * 1966-11-11 1969-01-29 Standard Telephones Cables Ltd A magnetic recording head
GB1174175A (en) * 1967-07-14 1969-12-17 Standard Telephones Cables Ltd A magnetic recording apparatus
US3555204A (en) * 1968-01-12 1971-01-12 Ibm Electronic sweep magnetic scanning transducer
JPS5746127B2 (pt) * 1972-09-22 1982-10-01
JPS538209B2 (pt) * 1972-12-19 1978-03-27
JPS568408B2 (pt) * 1973-07-06 1981-02-24
SU1065876A1 (ru) * 1981-12-05 1984-01-07 Грозненский Ордена Трудового Красного Знамени Нефтяной Институт Им.Акад.М.Д.Миллионщикова Способ магнитной записи и воспроизведени с немеханическим сканированием носител и сканирующа универсальна магнитна головка
DE3418853A1 (de) * 1984-05-21 1985-11-21 Konrad Dipl.-Phys. 5300 Bonn Jäger Anordnung zur magnetischen signal-aufzeichnung und -wiedergabe
EP0171957B1 (en) * 1984-08-16 1993-10-20 Ampex Systems Corporation Electromagnetically controlled scanning magnetic transducer

Also Published As

Publication number Publication date
EP0195590B1 (en) 1993-11-03
EP0195590A3 (en) 1989-02-08
JPS61267904A (ja) 1986-11-27
DE3689238T2 (de) 1994-03-03
EP0195590A2 (en) 1986-09-24
MX162252A (es) 1991-04-18
DE3689238D1 (de) 1993-12-09

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