JPH0799614B2 - Recording medium surface contamination measuring device - Google Patents
Recording medium surface contamination measuring deviceInfo
- Publication number
- JPH0799614B2 JPH0799614B2 JP18092587A JP18092587A JPH0799614B2 JP H0799614 B2 JPH0799614 B2 JP H0799614B2 JP 18092587 A JP18092587 A JP 18092587A JP 18092587 A JP18092587 A JP 18092587A JP H0799614 B2 JPH0799614 B2 JP H0799614B2
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- air
- dust
- measuring device
- contamination
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、磁気ディスクなどの記録媒体の表面汚染測定
装置に係り、特に非破壊で定量的に汚染を測定し得る表
面汚染測定装置に関する。TECHNICAL FIELD The present invention relates to a surface contamination measuring device for a recording medium such as a magnetic disk, and more particularly to a surface contamination measuring device capable of nondestructively quantitatively measuring contamination.
従来の技術は特公昭57−4028に記載の如く、磁気ディス
クに接触して起動、停止を行なう磁気ヘッドスライダー
の起動、停止時の発生ダストを吸引し、吸引したダスト
をダストカウンタで計測し、磁気ディスクとスライダの
境界潤滑の良否を評価する方法であった。すなわち、ス
ライダ又はコーティングの一部が摺動し、摺動による材
料の微粉が発生する。そこでスライダの磁気ディスクの
回転方向に対して後部に吸塵管を設け、微粉を計測する
ダストカウンタに接続し、ダストを計測するものであ
る。As described in Japanese Patent Publication No. 57-4028, the conventional technique is to start and stop a magnetic head slider that starts and stops by contacting a magnetic disk, sucks dust generated at the time of stopping, and measures the sucked dust with a dust counter. This was a method of evaluating the quality of the boundary lubrication between the magnetic disk and the slider. That is, a part of the slider or the coating slides, and fine particles of the material are generated by the sliding. Therefore, a dust suction tube is provided at the rear of the slider in the direction of rotation of the magnetic disk and is connected to a dust counter for measuring fine powder to measure dust.
また他の従来の技術は、特開昭60−43284に記載の如
く、磁気ディスクを清掃するためにスライダを磁気ディ
スクの上に置き、ディスクを低速回転させる方法であ
る。Another conventional technique is a method of placing a slider on a magnetic disk for cleaning the magnetic disk and rotating the disk at a low speed, as described in JP-A-60-43284.
上記特公昭57−4028に記載の従来技術は、磁気ディスク
と磁気ヘッドとの組合せに関係する評価方法であり、磁
気ディスクの汚染を評価する方法でなく、また磁気ディ
スクを回転しながら測定するため、ディスクのどの部分
が汚染されているか分からず、汚染位置を確認すること
が出来ないという問題があった。また磁気ヘッドの浮上
は、磁気ディスクを回転させることによりヘッドとディ
スクの間に空気流が入り込み、加圧され、この力により
生ずるものである。加圧された空気は磁気ヘッドの後部
（ディスクの回転方向に対して）にくると常圧となり、
微粉は磁気ヘッドの後端部にまき上げられるが、一部は
磁気ヘットに付着する。従って微粉がすべて吸塵管に吸
収されないという問題があった。The conventional technique described in JP-B-57-4028 is an evaluation method related to the combination of a magnetic disk and a magnetic head, and is not a method for evaluating contamination of a magnetic disk, and is also measured while rotating the magnetic disk. However, there is a problem that it is not possible to confirm the contaminated position by not knowing which part of the disc is contaminated. The levitation of the magnetic head is caused by the force caused by the air flow entering between the head and the disk when the magnetic disk is rotated and being pressurized. When the pressurized air reaches the rear of the magnetic head (with respect to the rotation direction of the disk), it becomes normal pressure,
The fine powder is rolled up to the rear end of the magnetic head, but part of it adheres to the magnetic head. Therefore, there is a problem that all the fine powder is not absorbed by the dust suction tube.
また上記特開昭60−43284に記載の従来技術は、磁気デ
ィスクの清掃方法であって、ディスクの汚染を定量的に
測定することが出来ないという問題があった。Further, the conventional technique described in JP-A-60-43284 is a method for cleaning a magnetic disk, and there is a problem that the contamination of the disk cannot be quantitatively measured.
本発明の目的は、記録媒体の表面汚染を定量的に、かつ
汚染位置をも含めて測定し得る記録媒体表面汚染測定装
置を提供することにある。An object of the present invention is to provide a recording medium surface contamination measuring device capable of quantitatively measuring the surface contamination of a recording medium and including the contamination position.
上記の目的は、記録媒体を載置し、回転するための取付
台と、載置された該記録媒体表面にエアを噴出、吸入す
るためのエア噴出、吸入手段と、該エア噴出、吸入手段
を上記記録媒体上で移動させるキャリッジと、エアの吸
入によって集塵された塵埃の量を計測する計測手段とを
有し、上記記録媒体の表面の汚染量を測定することを特
徴とする記録媒体表面汚染測定装置によって達成され
る。The above-mentioned object is to mount a recording medium and rotate the mounting table, air jetting and sucking means for jetting and sucking air on the surface of the mounted recording medium, and air jetting and sucking means. A recording medium having a carriage for moving the recording medium on the recording medium and a measuring unit for measuring the amount of dust collected by inhaling air, and measuring the amount of contamination on the surface of the recording medium. Achieved by a surface contamination measuring device.
なお、汚染が静電気の帯電により、塵埃が付着している
場合があるが、噴射エアをイオン化することによってこ
のような汚染もより容易に集塵することができる。It should be noted that dust may be attached due to electrostatic charge, but such contamination can be more easily collected by ionizing the air jet.
加圧したエアをノズルより吹き付けることにより、媒体
表面上の汚染は飛び散り、これを回収し、測定すること
によって所定部分の汚染量を知ることができる。By blowing the pressurized air from the nozzle, the contamination on the surface of the medium scatters, and by collecting and measuring it, the amount of contamination of a predetermined portion can be known.
本発明の一実施例を第１図に示す。本装置は、円板３を
取付ける取付台４、円板３を固定するためのキャップ1
3、エア噴射ノズル21、集塵ノズル22を備えたエア噴射
・集塵啌２、エア吹き付けのためのエア圧縮器５、集塵
ノズル22から送られてくる塵埃を含んだエアの微粒子を
定量化する塵埃測定装置６、エア噴射・集塵啌２を半径
方向に移動するためのキャリッジ機構１、円板３を回転
させ、円周方向をスキャンするための駆動モータ８、こ
れらを制御するためのキャリッジ制御部９、スピンドル
モータ回転制御部７、エアジェット圧を制御するための
エア圧制御部11、塵埃測定装置６より送られるデータ及
び制御処理する測定結果編集／制御部12、これらを総括
する制御部10からなる。なお第１図（ｂ）はエア噴射・
集塵啌２付近の拡大図である。One embodiment of the present invention is shown in FIG. This device consists of a mount 4 for mounting the disc 3 and a cap 1 for fixing the disc 3.
3, air injection / dust collection device 2 equipped with air injection nozzle 21, dust collection nozzle 22, air compressor 5 for air blowing, and fine particles of air containing dust sent from dust collection nozzle 22 A dust measuring device 6 that changes, a carriage mechanism 1 for moving the air jetting / dust collecting unit 2 in the radial direction, a drive motor 8 for rotating the disk 3 and scanning in the circumferential direction, and for controlling these Carriage control unit 9, spindle motor rotation control unit 7, air pressure control unit 11 for controlling the air jet pressure, data sent from the dust measuring device 6 and measurement result editing / control unit 12 for control processing. It comprises a control unit 10. It should be noted that FIG.
It is an enlarged view near the dust collecting bin 2.
以下この装置の操作について説明する。測定する円板３
をスピンドル上部に付いている取付台４にセットし、キ
ャップ13で固定する。第２図のAB間の汚染を測定するも
のとすると、エア噴射・集塵啌２をキャリッジ機構１に
より移動させ目的のＡ点に位置付ける、ここよりエア圧
縮器５によりエアをエア噴射ノズル21より噴射させ、集
塵動作を開始させる。この状態で円板３をＤ方向に90°
回転を加える。Ｂまで一定の速度で回転したのち、キャ
リッジ機構１によりエア噴射・集塵啌２をB1に移動す
る。移動後円板をＣ方向に一定の速度で90°回転させA1
で止める。キャリッジ機構１でエア噴射・集塵啌２をA2
まで移動させる。このくり返しをBnまで実施することに
より、AB間の面を前面走査出来たことになる。この時に
集められた汚染量を塵埃量とし測定する。尚ＡからA1、
ＢからB1のシーク間隔は任意とする。これらの事からキ
ャリッジ移動による半径方向走査と円板回転による円周
方向の走査により任意の場所、範囲の測定が可能であ
る。The operation of this device will be described below. Disc 3 to measure
Is set on the mount 4 attached to the upper part of the spindle, and fixed with the cap 13. Assuming that contamination between points A and B in FIG. 2 is to be measured, the air jetting / dust collecting pit 2 is moved by the carriage mechanism 1 and positioned at the target point A. From here, air is blown by the air compressor 5 from the air jet nozzle 21 Spray and start dust collection operation. In this state, rotate the disk 3 90 ° in the D direction.
Add rotation. After rotating at a constant speed up to B, the carriage mechanism 1 moves the air jetting / dust collecting chamber 2 to B 1 . After moving, rotate the disc in the C direction at a constant speed by 90 ° A 1
Stop with. Carriage mechanism 1 for air injection and dust collection 2 A 2
Move to. By repeating this process up to Bn, it is possible to perform front scanning on the surface between AB. The amount of pollution collected at this time is measured as the amount of dust. A to A 1 ,
The seek interval from B to B 1 is arbitrary. From these facts, it is possible to measure an arbitrary place and range by scanning in the radial direction by moving the carriage and scanning in the circumferential direction by rotating the disk.
また圧縮機を制御することにより、汚れ除去のレンジの
切替が可能となり、頑固な汚れ、さらっとした汚れも除
去可能にし、クリーニング効果も有することが出来た。Also, by controlling the compressor, it was possible to switch the range of dirt removal, which made it possible to remove stubborn dirt and dry dirt, and to have a cleaning effect.
本発明によれば、円板上の任意の場所の汚染を個別に測
定することが出来る。また非破壊検査が可能である。According to the present invention, it is possible to individually measure the contamination at any place on the disk. In addition, nondestructive inspection is possible.
第１図（ａ）は、本発明の一実施例の記録媒体表面汚染
測定装置の構成図、第１図（ｂ）は、その部分拡大図、
第２図は、測定方法を説明するための説明図である。 １……キャリッジ機構、２……エア噴射・集塵啌 ３……円板、４……取付台 ５……エア圧縮器、６……塵埃測定装置 ７……スピンドルモータ回転制御部 ８……駆動モータ、９……キャリッジ制御部 10……制御部、11……エア圧制御部 12……測定結果編集／制御部 13……キャップ、14……汚染 21……エア噴射ノズル、22……集塵ノズルFIG. 1 (a) is a block diagram of a recording medium surface contamination measuring device according to an embodiment of the present invention, and FIG. 1 (b) is a partially enlarged view thereof.
FIG. 2 is an explanatory diagram for explaining the measuring method. 1 ... Carriage mechanism, 2 ... Air jetting / dust collecting unit 3 ... Disc, 4 ... Mounting base 5 ... Air compressor, 6 ... Dust measuring device 7 ... Spindle motor rotation control unit 8 ... Drive motor, 9 ... Carriage control unit 10 ... Control unit, 11 ... Air pressure control unit 12 ... Measurement result editing / control unit 13 ... Cap, 14 ... Contamination 21 ... Air injection nozzle, 22 ... Dust collection nozzle
Claims (1)
と、載置された該記録媒体表面にエアを噴出、吸入する
ためのエア噴出、吸入手段と、該エア噴出、吸入手段を
上記記録媒体上で移動させるキャリッジと、エアの吸入
によって集塵された塵埃の量を計測する計測手段とを有
し、上記記録媒体の表面の汚染量を測定することを特徴
とする記録媒体表面汚染測定装置。1. A mounting base for placing and rotating a recording medium, an air jetting and sucking means for jetting and sucking air to and from the mounted recording medium surface, and the air jetting and sucking means. A recording medium having a carriage for moving the recording medium on the recording medium and a measuring unit for measuring the amount of dust collected by inhaling air, and measuring the amount of contamination on the surface of the recording medium. Surface contamination measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18092587A JPH0799614B2 (en) | 1987-07-22 | 1987-07-22 | Recording medium surface contamination measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18092587A JPH0799614B2 (en) | 1987-07-22 | 1987-07-22 | Recording medium surface contamination measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6425385A JPS6425385A (en) | 1989-01-27 |
| JPH0799614B2 true JPH0799614B2 (en) | 1995-10-25 |
Family
ID=16091678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18092587A Expired - Lifetime JPH0799614B2 (en) | 1987-07-22 | 1987-07-22 | Recording medium surface contamination measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0799614B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03187092A (en) * | 1989-12-15 | 1991-08-15 | Nec Corp | Magnetic disk device |
| US7597012B2 (en) | 2006-06-15 | 2009-10-06 | Hitachi Global Storage Technologies Netherlands B.V. | System and method for using a spray/liquid particle count (LPC) to measure particulate contamination |
-
1987
- 1987-07-22 JP JP18092587A patent/JPH0799614B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6425385A (en) | 1989-01-27 |
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