JPS563436A - Intensity evaluating method of magnetic disk - Google Patents

Intensity evaluating method of magnetic disk

Info

Publication number
JPS563436A
JPS563436A JP7689279A JP7689279A JPS563436A JP S563436 A JPS563436 A JP S563436A JP 7689279 A JP7689279 A JP 7689279A JP 7689279 A JP7689279 A JP 7689279A JP S563436 A JPS563436 A JP S563436A
Authority
JP
Japan
Prior art keywords
head
magnetic disk
disk
css
opposite direction
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.)
Granted
Application number
JP7689279A
Other languages
Japanese (ja)
Other versions
JPH0143365B2 (en
Inventor
Akira Isori
Masahiko Miyake
Hiroyasu Oda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7689279A priority Critical patent/JPS563436A/en
Publication of JPS563436A publication Critical patent/JPS563436A/en
Publication of JPH0143365B2 publication Critical patent/JPH0143365B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/10—Indicating arrangements; Warning arrangements
    • 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
    • G11B5/82—Disk carriers

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To secure a quick evaluation for the durable intensity of the magnetic disk, by attaching the low-floatup head in the opposite direction to the normal way onto the magnetic disk of the magnetic disk device of contact start-stop (CSS) system and then repeating the CSS of the magnetic disk. CONSTITUTION:Low-floatup head 1 having about 0.3-0.1mum floating amount is used. Then head 1 is attached onto magnetic disk 4 in the opposite direction to the normal way and so that air flow-in end 3 of slider taper part 2 of head 1 may be at the flow-out side. Under these conditions, the contact start-stop (CSS) of disk 4 is repeated to give the evaluation to the durable intensity of disk 4. In that case, the rotational direction of disk 4 is shown by the arrow. When head 1 is attached in the opposite direction to the normal way, the floating position of head 1 becomes unsteady. Thus head 1 hits frequently the surface of disk 4. In such way, the durable intensity of the magnetic disk can be evaluated in about 1/10 the conventional time.
JP7689279A 1979-06-20 1979-06-20 Intensity evaluating method of magnetic disk Granted JPS563436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7689279A JPS563436A (en) 1979-06-20 1979-06-20 Intensity evaluating method of magnetic disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7689279A JPS563436A (en) 1979-06-20 1979-06-20 Intensity evaluating method of magnetic disk

Publications (2)

Publication Number Publication Date
JPS563436A true JPS563436A (en) 1981-01-14
JPH0143365B2 JPH0143365B2 (en) 1989-09-20

Family

ID=13618287

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7689279A Granted JPS563436A (en) 1979-06-20 1979-06-20 Intensity evaluating method of magnetic disk

Country Status (1)

Country Link
JP (1) JPS563436A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6497021B2 (en) 1999-01-14 2002-12-24 International Business Machines Corporation Method and apparatus for providing a low cost contact burnish slider
US7171845B2 (en) 2005-02-16 2007-02-06 Hitachi Global Storage Technologies Netherlands B.V. Apparatus for measurement of friction force at the interface of a slider and rotating disk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6497021B2 (en) 1999-01-14 2002-12-24 International Business Machines Corporation Method and apparatus for providing a low cost contact burnish slider
US7171845B2 (en) 2005-02-16 2007-02-06 Hitachi Global Storage Technologies Netherlands B.V. Apparatus for measurement of friction force at the interface of a slider and rotating disk

Also Published As

Publication number Publication date
JPH0143365B2 (en) 1989-09-20

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