FR2122181A5 - - Google Patents

Info

Publication number
FR2122181A5
FR2122181A5 FR7200780A FR7200780A FR2122181A5 FR 2122181 A5 FR2122181 A5 FR 2122181A5 FR 7200780 A FR7200780 A FR 7200780A FR 7200780 A FR7200780 A FR 7200780A FR 2122181 A5 FR2122181 A5 FR 2122181A5
Authority
FR
France
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
FR7200780A
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.)
Fulmer Research Institute Ltd
Original Assignee
Fulmer Research Institute Ltd
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 Fulmer Research Institute Ltd filed Critical Fulmer Research Institute Ltd
Application granted granted Critical
Publication of FR2122181A5 publication Critical patent/FR2122181A5/fr
Expired legal-status Critical Current

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
    • G11B5/40—Protective measures on heads, e.g. against excessive temperature 
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/56—Investigating resistance to wear or abrasion
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
FR7200780A 1971-01-15 1972-01-11 Expired FR2122181A5 (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB208071 1971-01-15

Publications (1)

Publication Number Publication Date
FR2122181A5 true FR2122181A5 (OSRAM) 1972-08-25

Family

ID=9733232

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7200780A Expired FR2122181A5 (OSRAM) 1971-01-15 1972-01-11

Country Status (5)

Country Link
US (1) US3753093A (OSRAM)
BE (1) BE778050A (OSRAM)
DE (1) DE2201658C2 (OSRAM)
FR (1) FR2122181A5 (OSRAM)
GB (1) GB1320122A (OSRAM)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974443A (en) * 1975-01-02 1976-08-10 International Business Machines Corporation Conductive line width and resistivity measuring system
US4091654A (en) * 1977-04-18 1978-05-30 Memorex Corporation Magnetic recording member abrasion tester
US4780664A (en) * 1986-10-10 1988-10-25 Frank Asuini Corrosion sensor for measuring the corrosion loss and the instantaneous corrosion rate
US4899051A (en) * 1988-12-19 1990-02-06 Eastman Kodak Company Method and device for simulating thermal effects at the interface of a magnetic head and a recording medium
KR200152011Y1 (ko) * 1995-04-29 1999-07-15 전주범 핀치롤러 내마모성 시험기
DE10205435C1 (de) * 2002-02-08 2003-08-14 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Bestimmung der Verschleißresistenz einer Oberfläche
US7509833B2 (en) * 2004-06-29 2009-03-31 International Business Machines Corporation Wear gauge and method of use
US7090560B2 (en) * 2004-07-28 2006-08-15 3M Innovative Properties Company System and method for detecting abrasive article orientation
US20060025047A1 (en) * 2004-07-28 2006-02-02 3M Innovative Properties Company Grading system and method for abrasive article
US20060025048A1 (en) * 2004-07-28 2006-02-02 3M Innovative Properties Company Abrasive article detection system and method
US20060025046A1 (en) * 2004-07-28 2006-02-02 3M Innovative Properties Company Abrasive article splicing system and methods
US7549215B2 (en) * 2007-03-28 2009-06-23 Hitachi Global Storage Technologies Netherlands B.V. Method for manufacturing a magnetic head for perpendicular magnetic data recording
US9293152B2 (en) 2012-01-25 2016-03-22 International Business Machines Corporation Abrasion test methods and devices
US8994933B2 (en) * 2013-01-09 2015-03-31 Defelsko Corporation Apparatus and method for characterizing a replica tape
US9638614B2 (en) 2013-12-12 2017-05-02 International Business Machines Corporation Measuring tape abrasivity and wear of a tape head-type structure
US9865300B1 (en) 2017-03-30 2018-01-09 International Business Machines Corporation Magnetic tape abrasivity measurement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1049599B (de) * 1959-01-29 Loewe Opta Aktiengesellschaft, Berlin-Steglitz Verfahren zur Herstellung von Magnetköpfen für Magnettongeräte

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811691A (en) * 1954-01-07 1957-10-29 Lockheed Aircraft Corp Film resistance measuring device
DE972132C (de) * 1955-01-01 1959-05-27 Emag Elek Zitaets Ges M B H Verfahren zur Untersuchung des Verschleisses an Oberflaechen fester Koerper
US2856582A (en) * 1955-05-24 1958-10-14 Gen Electric Method and apparatus for measuring thickness
NL279482A (OSRAM) * 1961-06-15
FR1416129A (fr) * 1964-01-18 1965-10-29 Wintershall Ag Dispositif pour la mesure de l'usure, aux points de frottement et procédé pour l'exécution de la mesure du frottement
BE655226A (OSRAM) * 1964-11-04 1965-05-04
US3359783A (en) * 1966-04-04 1967-12-26 Scheiman Jack Magnetic tape wear simulator
GB1186513A (en) * 1966-05-13 1970-04-02 Agfa Gevaert Nv Method for Measuring the Resistance of Electrically Conductive Materials
US3495049A (en) * 1968-03-08 1970-02-10 Michigan Magnetics Inc Magnetic transducer wear indicator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1049599B (de) * 1959-01-29 Loewe Opta Aktiengesellschaft, Berlin-Steglitz Verfahren zur Herstellung von Magnetköpfen für Magnettongeräte

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/69 *

Also Published As

Publication number Publication date
GB1320122A (en) 1973-06-13
US3753093A (en) 1973-08-14
DE2201658A1 (de) 1972-07-20
BE778050A (fr) 1972-05-02
DE2201658C2 (de) 1983-09-08

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Legal Events

Date Code Title Description
ST Notification of lapse