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
Application number
JP24235686A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6396584A (ja
Inventor
Hideo Tashiro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP24235686A priority Critical patent/JPS6396584A/ja
Publication of JPS6396584A publication Critical patent/JPS6396584A/ja
Publication of JPH0454192B2 publication Critical patent/JPH0454192B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Radar Systems And Details Thereof (AREA)
JP24235686A 1986-10-13 1986-10-13 回転ムラ測定器 Granted JPS6396584A (ja)

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)

* Cited by examiner, † Cited by third party
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

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)