JPS5637508A - Revolution sensor - Google Patents

Revolution sensor

Info

Publication number
JPS5637508A
JPS5637508A JP11295979A JP11295979A JPS5637508A JP S5637508 A JPS5637508 A JP S5637508A JP 11295979 A JP11295979 A JP 11295979A JP 11295979 A JP11295979 A JP 11295979A JP S5637508 A JPS5637508 A JP S5637508A
Authority
JP
Japan
Prior art keywords
magnetoresistance
recording medium
detecting
magnetic recording
magnetoresistance effect
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
Application number
JP11295979A
Other languages
Japanese (ja)
Inventor
Tadashi Takahashi
Hiroshi Hayashida
Kunio Miyashita
Hiroji Kawakami
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 JP11295979A priority Critical patent/JPS5637508A/en
Priority to US06/173,842 priority patent/US4418372A/en
Publication of JPS5637508A publication Critical patent/JPS5637508A/en
Pending legal-status Critical Current

Links

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE: To increase the accuracy of the spacing between magnetoresistance effect elements and enhance the accuracy of detection by detecting the information of a magnetic recording medium by the use of the magnetoresistance effect elements formed on a substrate by means such as vapor deposition and photoetching.
CONSTITUTION: Magnetic information has been recorded in the form of N and S on a magnetic recording medium 2 along its rotating direction. A magnetoresistance detecting body 6 is disposed by way of a micro-spacing to this magnetic recording medium 2. The magnetoresistance detecting body 6 is formed thinly on the surface of one platelike substrate 5 having electrical insulation characteristic by means such as vapor deposition or photoetching. Magnetoresistance effect bodies 4 are formed by input terminals (A), (C), detecting terminals (B), (D), resistance parts R11WR42 and connecting parts (a)W(d).
COPYRIGHT: (C)1981,JPO&Japio
JP11295979A 1979-08-02 1979-09-05 Revolution sensor Pending JPS5637508A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11295979A JPS5637508A (en) 1979-09-05 1979-09-05 Revolution sensor
US06/173,842 US4418372A (en) 1979-08-02 1980-07-30 Magnetic rotary encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11295979A JPS5637508A (en) 1979-09-05 1979-09-05 Revolution sensor

Publications (1)

Publication Number Publication Date
JPS5637508A true JPS5637508A (en) 1981-04-11

Family

ID=14599810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11295979A Pending JPS5637508A (en) 1979-08-02 1979-09-05 Revolution sensor

Country Status (1)

Country Link
JP (1) JPS5637508A (en)

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