JPH0454192B2 - - Google Patents
Info
- Publication number
- JPH0454192B2 JPH0454192B2 JP24235686A JP24235686A JPH0454192B2 JP H0454192 B2 JPH0454192 B2 JP H0454192B2 JP 24235686 A JP24235686 A JP 24235686A JP 24235686 A JP24235686 A JP 24235686A JP H0454192 B2 JPH0454192 B2 JP H0454192B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- frequency
- photodetector
- output
- rotational
- 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
Links
- 238000010586 diagram Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24235686A JPS6396584A (ja) | 1986-10-13 | 1986-10-13 | 回転ムラ測定器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24235686A JPS6396584A (ja) | 1986-10-13 | 1986-10-13 | 回転ムラ測定器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6396584A JPS6396584A (ja) | 1988-04-27 |
JPH0454192B2 true JPH0454192B2 (enrdf_load_stackoverflow) | 1992-08-28 |
Family
ID=17087971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24235686A Granted JPS6396584A (ja) | 1986-10-13 | 1986-10-13 | 回転ムラ測定器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6396584A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06109843A (ja) * | 1992-07-17 | 1994-04-22 | Graphtec Corp | ドップラ効果を利用した測定器 |
-
1986
- 1986-10-13 JP JP24235686A patent/JPS6396584A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6396584A (ja) | 1988-04-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR870000856B1 (ko) | 디스크용 결함 검출장치 | |
JPS6236287B2 (enrdf_load_stackoverflow) | ||
JPS58182524A (ja) | 光周波数変化検出方式 | |
JP2531942B2 (ja) | 光学式デイスク記録装置 | |
JPH0330121A (ja) | 放射線感応層を有する記録担体に情報を記録する装置 | |
JPH0454192B2 (enrdf_load_stackoverflow) | ||
JPS5999223A (ja) | 物体表面の不均一の運動をモニタ−する方法及び装置 | |
JPH11195237A (ja) | 光学ピックアップ及び/又は光ディスクの特性測定装置、並びに、光学ピックアップ及び/又は光ディスクの特性測定方法 | |
JPH0455270B2 (enrdf_load_stackoverflow) | ||
US5577009A (en) | Tracking control system for generating a variable still jump signal | |
JP3410822B2 (ja) | レーザドプラ方式振動計 | |
JPH0363030B2 (enrdf_load_stackoverflow) | ||
JPS6395371A (ja) | 回転ムラ測定器 | |
JPH0363031B2 (enrdf_load_stackoverflow) | ||
JPS62190467A (ja) | 速度ムラ測定器 | |
EP0436752B1 (en) | Optical interference signal extractor | |
JPH0363032B2 (enrdf_load_stackoverflow) | ||
JPH0532738Y2 (enrdf_load_stackoverflow) | ||
JPH0955051A (ja) | 磁気ヘッドの浮上特性計測方法およびその装置 | |
JPS6395373A (ja) | 回転ムラ測定器 | |
JPS5917527A (ja) | 光変調器のバイアス制御装置 | |
JP3499815B2 (ja) | 光ディスク装置 | |
JPH05196707A (ja) | 光式磁界センサ | |
JPH02238347A (ja) | 光学特性測定装置 | |
JPS6312524B2 (enrdf_load_stackoverflow) |