JPH0397101A - Disk testing device - Google Patents
Disk testing deviceInfo
- Publication number
- JPH0397101A JPH0397101A JP1236556A JP23655689A JPH0397101A JP H0397101 A JPH0397101 A JP H0397101A JP 1236556 A JP1236556 A JP 1236556A JP 23655689 A JP23655689 A JP 23655689A JP H0397101 A JPH0397101 A JP H0397101A
- Authority
- JP
- Japan
- Prior art keywords
- measurement
- execution
- executing
- module group
- measuring module
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 113
- 238000000605 extraction Methods 0.000 claims abstract description 14
- 239000000284 extract Substances 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Tests Of Electronic Circuits (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はディスク試験装置に関し、特にコンピュータ等
の外部記憶装置に用いられる信号記憶用ディスク装置を
試験するためのディスク試験装置に関する．
〔技術環境〕
近年のディスク試験装置は、対象とするディスク装置の
高密度化，大容量化に伴って測定データが大容量化する
傾向にあり、記憶媒体の種類およびディスクサイズの多
様化とディスク装置の高信頼性化とに伴って、試験条件
，試験シーケンスが多様化し試験の種類も増加する傾向
にある。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disk testing device, and more particularly to a disk testing device for testing a signal storage disk device used in an external storage device such as a computer. [Technological environment] In recent years, disk testing equipment has tended to produce larger volumes of measurement data as the target disk devices have become more dense and large in capacity. As equipment becomes more reliable, test conditions and test sequences tend to become more diverse and the number of types of tests increases.
一般に、ディスク試験装置により行われる測定は、ディ
スク上の任意の位置における以下に示す３種類の測定に
大別される。In general, measurements performed by a disc testing device are broadly classified into the following three types of measurements at arbitrary positions on the disc.
（ａ）再生信号の振幅に影響を与えるディスク表面の物
理定数の変動を測定する物理特性測定。(a) Physical property measurement that measures variations in physical constants on the disk surface that affect the amplitude of the reproduced signal.
この測定には、ディスクの面振れ測定、磁気ディスクの
ディスク表面精度測定、光ディスクのプリグループトラ
ックの偏心の測定、光ディスクの反射率の測定等がある
．
（ｂ）ディスクに無記録，記録，再生の少なくとも一つ
を行った後の再生信号測定．
この測定には、記録強度（光ディスクでは媒体への入力
光パワー、磁気ディスクでは磁性媒体に加わる磁束密度
等〉を変化させて記録した後の再生信号振幅を測定する
媒体記録感度測定、消去強度（光磁気ディスクでは媒体
入力光パワーと入力磁束密度、磁気ディスクでは磁性媒
体に加わる磁束密度等〉を変化させて消去した後の再生
信号振幅を測定する媒体消去感度測定、キャリア周波数
で記録した後の再生信号のキャリア周波数成分と他の周
波数におけるノイズ成分の比であるＣ／Ｎ比の測定等が
ある．
（Ｃ）ディスクに無記録，記録，再生の少なくとも一つ
を行った後の媒体欠陥に起因する再生信号の振幅変化を
検出する欠陥測定．
この測定には、媒体の欠陥に起因する無記録時の再生信
号に含まれる疑似記録信号を測定するエクストラエラー
測定、記録時の再生信号に含まれる媒体欠陥に起因する
再生信号振幅の落ち込みを測定するドロップアウトエラ
ー測定等がある。These measurements include measuring the surface runout of a disk, measuring the disk surface accuracy of a magnetic disk, measuring the eccentricity of a pregroup track of an optical disk, and measuring the reflectance of an optical disk. (b) Measurement of reproduced signal after performing at least one of no recording, recording, and reproduction on the disc. This measurement includes medium recording sensitivity measurement, which measures the reproduced signal amplitude after recording while changing the recording intensity (input optical power to the medium for optical disks, magnetic flux density applied to the magnetic medium for magnetic disks, etc.), and erase intensity ( Medium erasure sensitivity measurement, which measures the reproduced signal amplitude after erasing by changing the media input optical power and input magnetic flux density for magneto-optical disks, and the magnetic flux density applied to the magnetic medium for magnetic disks, and measuring the reproduced signal amplitude after recording at the carrier frequency. Measurement of the C/N ratio, which is the ratio of the carrier frequency component of the reproduced signal to the noise component at other frequencies, etc. Defect measurement to detect amplitude changes in the reproduced signal due to defects in the medium. There is a dropout error measurement that measures the drop in reproduced signal amplitude due to media defects.
信号記憶用ディスクの試験は、ディスク上の任意の位置
，ディスクと記録再生を行うヘッドとの間の相対速度，
記録周波数，記録強度，消去強度および欠陥測定時の検
出条件の少なくとも一つをそれぞれパラメータ，主変数
にして、上述した物理特性測定，再生信号測定および欠
陥測定を組み合わせて行うものである．
〔従来の技術〕
第２図は従来のディスク試験装置の一例を示すブロック
図である。Tests for signal storage disks are performed at any position on the disk, the relative speed between the disk and the head that performs recording and playback, and
The above-mentioned physical property measurements, reproduction signal measurements, and defect measurements are performed in combination, with at least one of recording frequency, recording intensity, erasing intensity, and detection conditions during defect measurement as parameters or main variables. [Prior Art] FIG. 2 is a block diagram showing an example of a conventional disk testing device.
第２図に示す従来のディスク試験装置は、上述した物理
特性測定，再生信号測定および欠陥測定に関して各種デ
ィスクに対する単位測定の内容を個別に記述した測定モ
ジュールを多数格納した測定モジュール群記憶部４ａと
、主記憶５ａと、測定を実行する測定実行手段７と、こ
れらを制御する測定実行制御手段６ａとで構成されてい
る．測定実行制御手段６ａは、測定モジュール群記憶部
４ａの内容を主記憶５ａ上に測定モジュール群１ｌとし
て展開し、その中の実際に測定を実行する測定モジュー
ルから測定制御信号１０ａを作成して測定実行手段７に
送出している．すなわち、ディスク試験装置内の不揮発
性の測定モジュール群記憶部４ａの内容をすべていった
ん主記憶上に展開し、その中から測定実行制御手段６ａ
が実行しようとする測定の測定モジュールを検索して測
定制御信号１０ａを作成し、測定実行手段７が各種のデ
ィスク試験を実行するように構成されている．
〔発明が解決しようとする課題〕
上述した従来のディスク試験装置は、主記憶上にすべて
の測定モジュールを展開し、その中の実行すべき測定モ
ジュールから測定制御信号を作成しているため、測定モ
ジュールが多種多様化して多くなると、主記憶の構成に
より測定モジュール数が制約される欠点がある．
本発明の目的は、主記憶の構成に制約されず、測定モジ
ュールの多種多様化に対応できるディスク試験装置を提
供することである．
〔課題を解決するための手段〕
本発明のディスク試験装置は、信号記憶用ディスクの試
験に使用する各種の単位測定の内容を゜記述した測定モ
ジュールを多数収録した測定モジュール群記憶ファイル
と実施しようとする試験に必要な測定モジュールを指定
する実行測定抽出ファイルとを格納した外部記憶装置と
、前記実行測定抽出ファイルを参照して前記測定モジュ
ール群記憶ファイルから必要とする測定モジュールのみ
を抽出し主記憶上に実行測定モジュール群を展開する実
行測定モジュール抽出手段と、測定を実行する測定実行
手段と、前記実行測定モジュール群から測定制御信号を
作成し前記測定実行手段に送出する測定実行制御手段と
を備えている。The conventional disk testing apparatus shown in FIG. 2 includes a measurement module group storage section 4a that stores a large number of measurement modules that individually describe the contents of unit measurements for various disks regarding the above-mentioned physical characteristic measurements, reproduction signal measurements, and defect measurements. , a main memory 5a, a measurement execution means 7 for executing measurements, and a measurement execution control means 6a for controlling these. The measurement execution control means 6a develops the contents of the measurement module group storage section 4a on the main memory 5a as a measurement module group 1l, creates a measurement control signal 10a from the measurement module that actually executes the measurement, and performs the measurement. It is sent to execution means 7. That is, all the contents of the non-volatile measurement module group storage section 4a in the disk testing device are once developed on the main memory, and the measurement execution control means 6a is selected from them.
The measurement execution means 7 is configured to search for a measurement module for the measurement to be performed and create a measurement control signal 10a, and the measurement execution means 7 to execute various disk tests. [Problems to be Solved by the Invention] The conventional disk testing device described above deploys all measurement modules on the main memory and creates measurement control signals from the measurement modules to be executed. As the number of modules increases and becomes more diverse, there is a drawback that the number of measurement modules is limited by the structure of the main memory. An object of the present invention is to provide a disk testing device that is not limited by the configuration of main memory and can accommodate a wide variety of measurement modules. [Means for Solving the Problems] The disk testing device of the present invention is implemented with a measurement module group storage file containing a large number of measurement modules that describe the contents of various unit measurements used for testing signal storage disks. an external storage device that stores an execution measurement extraction file that specifies the measurement modules necessary for a test; Execution measurement module extracting means for expanding an execution measurement module group on memory; measurement execution means for executing measurement; measurement execution control means for creating a measurement control signal from the execution measurement module group and sending it to the measurement execution means. It is equipped with
次に、本発明の実施例について図面を参照して説明する
．
第１図は本発明の一実施例を示すブロック図である。Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing one embodiment of the present invention.
第１図に示すディスク試験装置は、外部記憶装置１と装
置本体２とから構成され、外部記憶装置１には、多数の
測定モジュールを収録した測定モジュール群記憶ファイ
ル４と、実行しようとする測定モジュールを指定する実
行測定抽出ファイル３とが格納されている。装置本体２
は、主記憶５と、測定実行手段７と、測定実行制御手段
６と、実行測定モジスール抽出手段８とから構成されて
いる。The disk test device shown in FIG. 1 is composed of an external storage device 1 and a device main body 2. The external storage device 1 contains a measurement module group storage file 4 containing a large number of measurement modules, and a measurement module group storage file 4 containing a large number of measurement modules. An execution measurement extraction file 3 that specifies a module is stored. Device body 2
is composed of a main memory 5, a measurement execution means 7, a measurement execution control means 6, and an execution measurement module extraction means 8.
実行測定モジュール抽出千段８は、外部記憶装置ｌに含
まれる実行測定抽出ファイル３を参照して測定モジュー
ル群記憶ファイル４から実行する測定モジュールのみを
抽出し、主記憶５上に実行測定モジュール群９を展開す
る。測定実行制御手段６は、主記憶５に展開された実行
測定モジュール群９に基づいて測定制御信号１０を作戒
し、測定実行千段７に出力し、測定実行千段７が各種の
測定を実行する。The execution measurement module extraction stage 8 refers to the execution measurement extraction file 3 included in the external storage device l, extracts only the measurement modules to be executed from the measurement module group storage file 4, and stores the execution measurement module group on the main memory 5. Expand 9. The measurement execution control means 6 generates a measurement control signal 10 based on the execution measurement module group 9 developed in the main memory 5, and outputs it to the measurement execution stage 7, so that the measurement execution stage 7 performs various measurements. Execute.
以上説明したように、本発明のディスク試験装置は、実
行測定抽出ファイルを有し、実行測定モジュール抽出手
段が必要な測定モジュールのみを主記憶に呼び出して処
理するため、メモリ構或による制約を受けることなく測
定モジュールの数を増加させることが可能である。更に
、実行測定モジュール群の内容を変更，追加する場合に
は、実行測定抽出ファイルに記述されている内容を変更
するだけで容易に実行測定モジュール群を更新すること
ができるので、多種多様な試験への対応が簡単にできる
という効果がある。As explained above, the disk testing device of the present invention has an execution measurement extraction file, and the execution measurement module extraction means calls only necessary measurement modules to the main memory for processing, so it is subject to limitations due to the memory structure. It is possible to increase the number of measurement modules without Furthermore, when changing or adding the contents of the execution measurement module group, the execution measurement module group can be easily updated by simply changing the contents written in the execution measurement extraction file, making it possible to perform a wide variety of tests. This has the effect of making it easy to respond to.
第Ｔ図は本発明の一実施例のプロ・ｙク図、第２図は従
来のディスク試験装置の一例のプロ・ｙク図である。
１・・−・・・外部記憶装置、２・・・・・・装置本体
、３・−・−・実行測定抽出ファイル、４・・・・・・
測定モジュール群記憶ファイル、４ａ測定モジュール群
記憶部、５，５ａ・・・・・一主記憶、６，６ａ・・−
・・・測定実行制御手段、７・・・・・・測定実行手段
、８・・・・一実行測定モジュール抽出手段、９・・・
・・・実行測定モジュール群、１０．１０ａ・・・・・
・測定制御信号、１１−・・・一測定モジュール群。FIG. T is a schematic diagram of an embodiment of the present invention, and FIG. 2 is a schematic diagram of an example of a conventional disk testing device. 1...External storage device, 2...Device main body, 3...Execution measurement extraction file, 4...
Measurement module group storage file, 4a Measurement module group storage section, 5, 5a... main memory, 6, 6a...-
. . . Measurement execution control means, 7 . . . Measurement execution means, 8 . . . Execution measurement module extraction means, 9 . . .
...Execution measurement module group, 10.10a...
- Measurement control signal, 11-... one measurement module group.
Claims (1)
内容を記述した測定モジュールを多数収録した測定モジ
ュール群記憶ファイルと実施しようとする試験に必要な
測定モジュールを指定する実行測定抽出ファイルとを格
納した外部記憶装置と、前記実行測定抽出ファイルを参
照して前記測定モジュール群記憶ファイルから必要とす
る測定モジュールのみを抽出し主記憶上に実行測定モジ
ュール群を展開する実行測定モジュール抽出手段と、測
定を実行する測定実行手段と、前記実行測定モジュール
群から測定制御信号を作成し前記測定実行手段に送出す
る測定実行制御手段とを備えたことを特徴とするディス
ク試験装置。Contains a measurement module group storage file containing a large number of measurement modules that describe the contents of various unit measurements used in testing the signal storage disk, and an execution measurement extraction file that specifies the measurement modules necessary for the test to be performed. Execution measurement module extracting means for extracting only necessary measurement modules from the measurement module group storage file by referring to the execution measurement extraction file and deploying the execution measurement module group on main memory; What is claimed is: 1. A disk testing apparatus comprising: measurement execution means for executing the measurement execution means; and measurement execution control means for creating a measurement control signal from the execution measurement module group and sending it to the measurement execution means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1236556A JPH0397101A (en) | 1989-09-11 | 1989-09-11 | Disk testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1236556A JPH0397101A (en) | 1989-09-11 | 1989-09-11 | Disk testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0397101A true JPH0397101A (en) | 1991-04-23 |
Family
ID=17002398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1236556A Pending JPH0397101A (en) | 1989-09-11 | 1989-09-11 | Disk testing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0397101A (en) |
-
1989
- 1989-09-11 JP JP1236556A patent/JPH0397101A/en active Pending
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