JPH0268366U - - Google Patents
Info
- Publication number
- JPH0268366U JPH0268366U JP14573788U JP14573788U JPH0268366U JP H0268366 U JPH0268366 U JP H0268366U JP 14573788 U JP14573788 U JP 14573788U JP 14573788 U JP14573788 U JP 14573788U JP H0268366 U JPH0268366 U JP H0268366U
- Authority
- JP
- Japan
- Prior art keywords
- peak voltage
- voltage data
- data
- holding means
- minimum
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
- Digital Magnetic Recording (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Description
第１図は、本考案による磁気デイスク装置自動
検査装置の一実施例を示すブロツク図である。第
２図は、第１図のピーク電圧検出回路に入力され
るチエツク波形を示す説明図である。第３図は、
第２図に示すチエツク波形の一部分を拡大して示
す説明図である。第４図は、第３図のサンプリン
グゲート信号波形を示す説明図である。
１…ピーク電圧検出回路、２…最大ピーク電圧
データ検出回路、３…最小ピーク電圧データ検出
回路、４…最大ピーク電圧データ保持回路、５…
最小ピーク電圧データ保持回路、６…データ処理
用ＣＰＵ、７〜１１…信号線。
FIG. 1 is a block diagram showing an embodiment of an automatic magnetic disk device inspection apparatus according to the present invention. FIG. 2 is an explanatory diagram showing a check waveform input to the peak voltage detection circuit of FIG. 1. Figure 3 shows
FIG. 3 is an explanatory diagram showing an enlarged part of the check waveform shown in FIG. 2; FIG. 4 is an explanatory diagram showing the sampling gate signal waveform of FIG. 3. DESCRIPTION OF SYMBOLS 1...Peak voltage detection circuit, 2...Maximum peak voltage data detection circuit, 3...Minimum peak voltage data detection circuit, 4...Maximum peak voltage data holding circuit, 5...
Minimum peak voltage data holding circuit, 6... CPU for data processing, 7-11... signal line.
Claims (1)
するためのピーク電圧検出回路と、前記ピーク電
圧を以前に保持していた最大ピーク電圧データと
比較して前記ピーク電圧の方が大きかつたときに
は保持するための最大ピーク電圧データ検出・保
持手段と、前記ピーク電圧を以前に保持していた
最小ピーク電圧データと比較して前記ピーク電圧
の方が小さかつたときには保持するための最小ピ
ーク電圧データ検出・保持手段と、前記最大ピー
ク電圧データと前記最小ピーク電圧データとの比
を算出して予め記憶されている検査規格と比較す
るためのデータ処理用ＣＰＵとを具備して構成し
たことを特徴とする磁気デイスク装置自動検査装
置。 A peak voltage detection circuit captures a check waveform and detects its peak voltage, and compares the peak voltage with previously held maximum peak voltage data and holds it when the peak voltage is larger. maximum peak voltage data detection/holding means for comparing the peak voltage with previously held minimum peak voltage data, and minimum peak voltage data detection/holding means for holding when the peak voltage is smaller than the previously held minimum peak voltage data; The present invention is characterized by comprising a holding means and a data processing CPU for calculating the ratio of the maximum peak voltage data and the minimum peak voltage data and comparing it with a pre-stored inspection standard. Magnetic disk device automatic inspection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14573788U JPH0268366U (en) | 1988-11-08 | 1988-11-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14573788U JPH0268366U (en) | 1988-11-08 | 1988-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0268366U true JPH0268366U (en) | 1990-05-23 |
Family
ID=31414589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14573788U Pending JPH0268366U (en) | 1988-11-08 | 1988-11-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0268366U (en) |
-
1988
- 1988-11-08 JP JP14573788U patent/JPH0268366U/ja active Pending
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