JPH0157290B2 - - Google Patents

Info

Publication number
JPH0157290B2
JPH0157290B2 JP56007976A JP797681A JPH0157290B2 JP H0157290 B2 JPH0157290 B2 JP H0157290B2 JP 56007976 A JP56007976 A JP 56007976A JP 797681 A JP797681 A JP 797681A JP H0157290 B2 JPH0157290 B2 JP H0157290B2
Authority
JP
Japan
Prior art keywords
magnetic
track
tracks
elements
rotary encoder
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
JP56007976A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57123493A (en
Inventor
Katsuyoshi Tamura
Kengo Takeuchi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP797681A priority Critical patent/JPS57123493A/ja
Publication of JPS57123493A publication Critical patent/JPS57123493A/ja
Publication of JPH0157290B2 publication Critical patent/JPH0157290B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)
JP797681A 1981-01-23 1981-01-23 Magnetic rotary encoder Granted JPS57123493A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP797681A JPS57123493A (en) 1981-01-23 1981-01-23 Magnetic rotary encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP797681A JPS57123493A (en) 1981-01-23 1981-01-23 Magnetic rotary encoder

Publications (2)

Publication Number Publication Date
JPS57123493A JPS57123493A (en) 1982-07-31
JPH0157290B2 true JPH0157290B2 (ko) 1989-12-05

Family

ID=11680479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP797681A Granted JPS57123493A (en) 1981-01-23 1981-01-23 Magnetic rotary encoder

Country Status (1)

Country Link
JP (1) JPS57123493A (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59108193A (ja) * 1982-12-13 1984-06-22 株式会社日立製作所 磁気的に位置を検出する装置
JPH01311221A (ja) * 1988-06-09 1989-12-15 Nikon Corp 磁気式アブソリュートエンコーダ

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5081116A (ko) * 1973-11-17 1975-07-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5081116A (ko) * 1973-11-17 1975-07-01

Also Published As

Publication number Publication date
JPS57123493A (en) 1982-07-31

Similar Documents

Publication Publication Date Title
US4904937A (en) Apparatus for magnetically detecting positions with minimum length magnetic information units recorded on a plurality of magnetic tracks
US4454549A (en) Slant track sector servo
US5497082A (en) Quadrature detector with a hall effect element and a magnetoresistive element
EP0113051A2 (en) System for position detection on a rotating disk
US4194184A (en) Bidirectional digital position encoder
US4068267A (en) Magnetic disk storage apparatus in which servo track zone provides signals for both moving speed and position of transducer
JPH01502452A (ja) 位置決め装置用スケール
EP0145962B1 (en) Digitally responsive method and apparatus for positioning a transducer of a storage apparatus
JP2008008699A (ja) 回転検出装置
US4843388A (en) Rotary encoder, and method of manufacturing same
JPH0157290B2 (ko)
CN100523740C (zh) 基于光盘数据系统的激光栅角位移传感器
CN201133824Y (zh) 激光栅角位移传感器
GB2209838A (en) An improved magnetic recording medium for displacement detectors
JP3433606B2 (ja) 位置検出装置
CA1225151A (en) Apparatus for digital angular measurement
Denić et al. High-resolution pseudorandom encoder with parallel code reading
JP2745627B2 (ja) Acサーボモータ用磁気式ロータリエンコーダ
JPS62180216A (ja) 磁気エンコ−ダの原点検出装置
JPH02201220A (ja) 磁気回転エンコーダ系
JPH06347287A (ja) 磁気式の変位・回転検出センサ
JP2676878B2 (ja) アブソリュートエンコーダ
JP2607868B2 (ja) 磁気ロータリーエンコーダ
JPS63266310A (ja) 位置検出装置
JP2699542B2 (ja) 1トラック型アブソリュートエンコーダ用符号板及び読取ヘッド