JPS5814616B2 - ジキキロクタンタイトクニジキエンバンノ ザンリユウジソクミツドノヒハカイソクテイソウチ - Google Patents

ジキキロクタンタイトクニジキエンバンノ ザンリユウジソクミツドノヒハカイソクテイソウチ

Info

Publication number
JPS5814616B2
JPS5814616B2 JP50108123A JP10812375A JPS5814616B2 JP S5814616 B2 JPS5814616 B2 JP S5814616B2 JP 50108123 A JP50108123 A JP 50108123A JP 10812375 A JP10812375 A JP 10812375A JP S5814616 B2 JPS5814616 B2 JP S5814616B2
Authority
JP
Japan
Prior art keywords
record carrier
read
head
magnetic
write
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
JP50108123A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5154404A (en
Inventor
エーベハルト・ケステル
カール・ウール
ゲオルク・フーベル
パウル・ダイグネル
ローラント・フアルク
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.)
BASF SE
Original Assignee
BASF SE
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
Priority claimed from DE19742446488 external-priority patent/DE2446488C3/de
Application filed by BASF SE filed Critical BASF SE
Publication of JPS5154404A publication Critical patent/JPS5154404A/ja
Publication of JPS5814616B2 publication Critical patent/JPS5814616B2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
    • G01R33/1207—Testing individual magnetic storage devices, e.g. records carriers or digital storage elements

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Measuring Magnetic Variables (AREA)
JP50108123A 1974-09-28 1975-09-08 ジキキロクタンタイトクニジキエンバンノ ザンリユウジソクミツドノヒハカイソクテイソウチ Expired JPS5814616B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742446488 DE2446488C3 (de) 1974-09-28 Anordnung zur zerstörungsfreien Messung der remanenten Magnetflußdichte von Magnetaufzeichnungsträgern, insbesondere von Magnetplatten

Publications (2)

Publication Number Publication Date
JPS5154404A JPS5154404A (en) 1976-05-13
JPS5814616B2 true JPS5814616B2 (ja) 1983-03-19

Family

ID=5927043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50108123A Expired JPS5814616B2 (ja) 1974-09-28 1975-09-08 ジキキロクタンタイトクニジキエンバンノ ザンリユウジソクミツドノヒハカイソクテイソウチ

Country Status (4)

Country Link
US (1) US3984763A (enExample)
JP (1) JPS5814616B2 (enExample)
FR (1) FR2286388A1 (enExample)
GB (1) GB1512690A (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578622U (enExample) * 1980-02-28 1982-01-16
JPS5888675A (ja) * 1981-11-24 1983-05-26 Hitachi Ltd 磁気デイスク媒体のテスト方法
US4485451A (en) * 1982-01-28 1984-11-27 Obedineni Zavodi Za Zapametyavashti Ustroystva System for monitoring dynamic parameters of magnetic heads
US4863039A (en) * 1983-12-23 1989-09-05 Three Phoenix Company Apparatus and method for handling a flexible disk for testing
GB8504765D0 (en) * 1985-02-25 1985-03-27 Gardner J P Magnetic recordings
US4627288A (en) * 1985-08-12 1986-12-09 Guzik Technical Enterprises Bearing unloading mechanism for disc clamping unit
ATE100942T1 (de) * 1987-07-02 1994-02-15 Seagate Technology Unschaedliches verfahren fuer die magnetische messung von aufzeichnungsplatten.
DE3843100A1 (de) * 1988-12-21 1990-06-28 Inst Prikladnoj Fiz Akademii N Einrichtung zur messung der parameter von beweglichen ferromagnetischen erzeugnissen
US5093751A (en) * 1990-03-21 1992-03-03 Hitachi Electronics Engineering Co., Ltd. Carry noise measuring system for magnetic recording medium
JPH04137511U (ja) * 1991-06-18 1992-12-22 セイコー精機株式会社 ハードデイスク検査装置
GB2268272B (en) * 1992-06-29 1995-09-20 Orb Electrical Steels Ltd Monitoring apparatus and method
US6330122B1 (en) 1999-05-24 2001-12-11 International Business Machines Corporation Magnetic tester for disk surface scan
US8559122B2 (en) * 2006-12-22 2013-10-15 HGST Netherlands B.V. Integrated spiral certification head for media magnetic testing including PMR and LMR media

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922106A (en) * 1956-08-01 1960-01-19 Texas Instruments Inc Method and apparatus for testing a record element

Also Published As

Publication number Publication date
DE2446488B2 (de) 1977-04-14
JPS5154404A (en) 1976-05-13
DE2446488A1 (de) 1976-04-08
GB1512690A (en) 1978-06-01
FR2286388B3 (enExample) 1978-05-12
US3984763A (en) 1976-10-05
FR2286388A1 (fr) 1976-04-23

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