JPS5663203A - Magnetic scale - Google Patents

Magnetic scale

Info

Publication number
JPS5663203A
JPS5663203A JP13898279A JP13898279A JPS5663203A JP S5663203 A JPS5663203 A JP S5663203A JP 13898279 A JP13898279 A JP 13898279A JP 13898279 A JP13898279 A JP 13898279A JP S5663203 A JPS5663203 A JP S5663203A
Authority
JP
Japan
Prior art keywords
detected
reader
magnetic
output
position code
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.)
Granted
Application number
JP13898279A
Other languages
Japanese (ja)
Other versions
JPS611681B2 (en
Inventor
Tetsuo Muramatsu
Shuhei Tsuchimoto
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP13898279A priority Critical patent/JPS5663203A/en
Publication of JPS5663203A publication Critical patent/JPS5663203A/en
Publication of JPS611681B2 publication Critical patent/JPS611681B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE: To ensure an easy detection for the position of a object to be detected without setting the reference position, by installing the magnetic reader having plural number of sensing elements are arranged with every bit and the position code component containing the magnetized substance which forms the position code on the substrate which can move relatively and against to the magentic reader.
CONSTITUTION: A plural number of sensing elements 3 having the magnetic resistance effect are arranged every bit to the magnetic reader 4 which is moved in a body with the object to be detected. The magnetic position code component 7, containing the magnetized substance 6 distributed at the position along the shifting direction 2 of the element 3, forms position code. The current of a constant level is supplied successively from the constant current source 10 via the multipexer 11. And the differential output between the output of the constant current and the reference voltage given from the reference power source 12 is extracted out of the differential amplifier 13. And this output of the amplifier 13 passes through the discriminating circuit 14 and the tatching circuit 15 synchronized with the multiplexer 11, and thus the position of the reader 4 is displayed part 16. Thus the position of the object to be detected can be detected easily without setting the reference position.
COPYRIGHT: (C)1981,JPO&Japio
JP13898279A 1979-10-26 1979-10-26 Magnetic scale Granted JPS5663203A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13898279A JPS5663203A (en) 1979-10-26 1979-10-26 Magnetic scale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13898279A JPS5663203A (en) 1979-10-26 1979-10-26 Magnetic scale

Publications (2)

Publication Number Publication Date
JPS5663203A true JPS5663203A (en) 1981-05-29
JPS611681B2 JPS611681B2 (en) 1986-01-20

Family

ID=15234704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13898279A Granted JPS5663203A (en) 1979-10-26 1979-10-26 Magnetic scale

Country Status (1)

Country Link
JP (1) JPS5663203A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58215508A (en) * 1982-06-09 1983-12-15 Kawaguchiko Seimitsu Kk Detector
JPS59188519A (en) * 1983-04-12 1984-10-25 Canon Inc Magnetizer
JPH02291911A (en) * 1989-03-29 1990-12-03 Celette Sa Position measuring apparatus for vehicle body
JP2016057125A (en) * 2014-09-08 2016-04-21 セイコーＮｐｃ株式会社 Magnetic line sensor and imaging device using magnetic line sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58215508A (en) * 1982-06-09 1983-12-15 Kawaguchiko Seimitsu Kk Detector
JPS59188519A (en) * 1983-04-12 1984-10-25 Canon Inc Magnetizer
JPH02291911A (en) * 1989-03-29 1990-12-03 Celette Sa Position measuring apparatus for vehicle body
JP2016057125A (en) * 2014-09-08 2016-04-21 セイコーＮｐｃ株式会社 Magnetic line sensor and imaging device using magnetic line sensor

Also Published As

Publication number Publication date
JPS611681B2 (en) 1986-01-20

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