KR20040013130A - 저밀도 가스를 함유한 디스크 드라이브용 초기 누출 검출시스템 - Google Patents
저밀도 가스를 함유한 디스크 드라이브용 초기 누출 검출시스템 Download PDFInfo
- Publication number
- KR20040013130A KR20040013130A KR10-2004-7000255A KR20047000255A KR20040013130A KR 20040013130 A KR20040013130 A KR 20040013130A KR 20047000255 A KR20047000255 A KR 20047000255A KR 20040013130 A KR20040013130 A KR 20040013130A
- Authority
- KR
- South Korea
- Prior art keywords
- disk drive
- signal
- disk
- helium
- concentration
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title description 13
- 238000000034 method Methods 0.000 claims abstract description 40
- 230000008859 change Effects 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 230000004044 response Effects 0.000 claims abstract description 9
- 231100001261 hazardous Toxicity 0.000 claims 1
- 239000001307 helium Substances 0.000 abstract description 75
- 229910052734 helium Inorganic materials 0.000 abstract description 75
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract description 75
- 239000007789 gas Substances 0.000 abstract description 34
- 230000003252 repetitive effect Effects 0.000 description 21
- 238000012360 testing method Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
- G11B33/1486—Control/regulation of the pressure, e.g. the pressure inside the housing of a drive
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
- G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
-
- 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
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
-
- 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
- G11B5/58—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 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
Description
Claims (10)
- 공기 이외의 저밀도 가스를 포함하는 디스크 드라이브에서, 상기 디스크 드라이브의 가스 농도가 용인할 수 없는 레벨에 다다른 위험한 상태인지를 검출하는 방법으로서,(a) 상기 디스크 드라이브의 가스 농도 변화에 응답하여 변화하는 신호를 모니터링하는 단계;(b) 상기 모니터링된 신호에 기초하여 표준을 결정하는 단계; 및- 상기 표준은 상기 디스크 드라이브가 상기 디스크 드라이브의 가스의 저농도로 인해 만족할 만하게 동작하지 않는 위험한 상태임을 나타냄 -(c) 상기 표준이 부합될 경우 플래그를 설정하는 단계를 포함하는 검출 방법.
- 제1항에 있어서,상기 디스크 드라이브는 회전 디스크, 및 상기 디스크의 자기 특성을 판독하는 헤드를 포함하며, 상기 모니터링 단계(a)는 상기 디스크의 트랙 위에 배치된 상기 디스크 드라이브의 헤드를 사용하여 디스크를 회전시키는 동안 상기 신호를 수신하는 단계를 포함하는 것을 특징으로 하는 검출 방법.
- 제2항에 있어서,상기 신호는 상기 디스크 상의 트랙과 관련한 상기 헤드의 위치를 나타내는 위치 에러 신호인 것을 특징으로 하는 검출 방법.
- 제2항에 있어서,상기 신호는 상기 디스크 위의 헤드의 비행 높이를 나타내는 판독 신호인 것을 특징으로 하는 검출 방법.
- 제1항에 있어서,상기 디스크 드라이브는 디스크를 회전시키는 스핀들 모터를 포함하며, 상기 신호는 상기 스핀들 모터의 실행 전류를 나타내는 것을 특징으로 하는 검출 방법.
- 제1항에 있어서, 상기 디스크 드라이브는 가속도계를 포함하며, 상기 신호는 상기 가속도계에 의해 측정된 디스크 모드의 크기를 나타내는 것을 특징으로 하는 검출 방법.
- 제1항에 있어서, 상기 표준은 상기 신호의 선택된 값에 대응하는 것을 특징으로 하는 검출 방법.
- 제1항에 있어서,상기 표준은 상기 신호의 값들의 추세를 나타내는 것을 특징으로 하는 검출방법.
- 제1항에 있어서, 상기 표준은 상기 디스크 드라이브의 가스 레벨이 미리 정해진 시간 주기 내에서 용인할 수 없는 레벨에 도달할 것을 나타내는 것을 특징으로 하는 검출 방법.
- 제1항에 있어서, 상기 모니터링 단계(a)는 상기 신호를 주기적으로 모니터링하는 단계를 더 포함하는 것을 특징으로 하는 검출 방법.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30409301P | 2001-07-09 | 2001-07-09 | |
US60/304,093 | 2001-07-09 | ||
US33763501P | 2001-11-01 | 2001-11-01 | |
US60/337,635 | 2001-11-01 | ||
PCT/US2002/003839 WO2003007302A1 (en) | 2001-07-09 | 2002-02-07 | Early leak detection system for a disc drive containing a low-density gas |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040013130A true KR20040013130A (ko) | 2004-02-11 |
KR100838877B1 KR100838877B1 (ko) | 2008-06-16 |
Family
ID=26973805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020047000255A KR100838877B1 (ko) | 2001-07-09 | 2002-02-07 | 저밀도 가스를 함유한 디스크 드라이브용 초기 누출 검출시스템 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6646821B2 (ko) |
JP (1) | JP2004535647A (ko) |
KR (1) | KR100838877B1 (ko) |
CN (1) | CN1524266A (ko) |
WO (1) | WO2003007302A1 (ko) |
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-
2002
- 2002-02-07 WO PCT/US2002/003839 patent/WO2003007302A1/en active Application Filing
- 2002-02-07 JP JP2003512980A patent/JP2004535647A/ja active Pending
- 2002-02-07 CN CNA028136861A patent/CN1524266A/zh active Pending
- 2002-02-07 US US10/071,011 patent/US6646821B2/en not_active Expired - Lifetime
- 2002-02-07 KR KR1020047000255A patent/KR100838877B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100838877B1 (ko) | 2008-06-16 |
WO2003007302A1 (en) | 2003-01-23 |
CN1524266A (zh) | 2004-08-25 |
US6646821B2 (en) | 2003-11-11 |
US20030007280A1 (en) | 2003-01-09 |
JP2004535647A (ja) | 2004-11-25 |
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Termination category: Default of registration fee Termination date: 20160509 |