JPS54162556A - Angle detector - Google Patents

Angle detector

Info

Publication number
JPS54162556A
JPS54162556A JP7191678A JP7191678A JPS54162556A JP S54162556 A JPS54162556 A JP S54162556A JP 7191678 A JP7191678 A JP 7191678A JP 7191678 A JP7191678 A JP 7191678A JP S54162556 A JPS54162556 A JP S54162556A
Authority
JP
Japan
Prior art keywords
magnetic
angle
position information
detecting part
high permeability
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
JP7191678A
Other languages
Japanese (ja)
Inventor
Kaoru Toki
Morimasa Nagao
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7191678A priority Critical patent/JPS54162556A/en
Publication of JPS54162556A publication Critical patent/JPS54162556A/en
Pending legal-status Critical Current

Links

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE: To reduce external magnetisms and obtain high reliability by providing a magnetic shield composed of high permeability magnetic material besides constituting elements.
CONSTITUTION: A magnetic shield 5 composed of high permeability magnetic material is provided besides the angle detecting part composed of a magnetic memory medium 13 as an angle position information generating source and a ferromagnetic magnetoresistance element 6 as a magnetic sensor of the position information thereof. Since this enables the malfunctions caused on account of the signal magnetic fields being applied to the magnetic sensor to be considerably reduced, the angle detecting part may be so constituted as to become integral with a rotator such as a DC servo motor 1 which produces strong leakage magnetic fields. As a result, the angle detector of low cost and good accuracy capable of performing positioning in the wide response speed region from the standstill up to a high speed may be obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP7191678A 1978-06-13 1978-06-13 Angle detector Pending JPS54162556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7191678A JPS54162556A (en) 1978-06-13 1978-06-13 Angle detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7191678A JPS54162556A (en) 1978-06-13 1978-06-13 Angle detector

Publications (1)

Publication Number Publication Date
JPS54162556A true JPS54162556A (en) 1979-12-24

Family

ID=13474333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7191678A Pending JPS54162556A (en) 1978-06-13 1978-06-13 Angle detector

Country Status (1)

Country Link
JP (1) JPS54162556A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56115912A (en) * 1980-02-18 1981-09-11 Hitachi Ltd Magnetic head for detecting movement
JPS59157514A (en) * 1983-02-28 1984-09-06 Hitachi Ltd Magnetic rotation sensor
US4603365A (en) * 1982-03-10 1986-07-29 Copal Company Limited Magnetic detection apparatus
JPS62162215A (en) * 1986-10-20 1987-07-18 Hitachi Ltd Magnetic head
JPS62162216A (en) * 1986-10-20 1987-07-18 Hitachi Ltd Magnetic head
JPS62247214A (en) * 1986-10-20 1987-10-28 Hitachi Ltd Magnetic head
JPS62247213A (en) * 1986-10-20 1987-10-28 Hitachi Ltd Magnetic head
JPS62247212A (en) * 1986-10-20 1987-10-28 Hitachi Ltd Magnetic heads
JP2006158059A (en) * 2004-11-29 2006-06-15 Yaskawa Electric Corp Magnetic encoder and motor equipped with the same
JP2021530707A (en) * 2018-07-20 2021-11-11 フラバ ベスローテン ヴェンノーツハップFraba B.V. Rotation angle measurement system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5293358A (en) * 1976-02-02 1977-08-05 Denki Onkyo Co Ltd Rotary motion detecting device
JPS52137371A (en) * 1976-05-13 1977-11-16 Fujitsu Ltd Position control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5293358A (en) * 1976-02-02 1977-08-05 Denki Onkyo Co Ltd Rotary motion detecting device
JPS52137371A (en) * 1976-05-13 1977-11-16 Fujitsu Ltd Position control system

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0226166B2 (en) * 1980-02-18 1990-06-07 Hitachi Ltd
JPS56115912A (en) * 1980-02-18 1981-09-11 Hitachi Ltd Magnetic head for detecting movement
US4603365A (en) * 1982-03-10 1986-07-29 Copal Company Limited Magnetic detection apparatus
JPS59157514A (en) * 1983-02-28 1984-09-06 Hitachi Ltd Magnetic rotation sensor
JPH0480324B2 (en) * 1983-02-28 1992-12-18 Hitachi Ltd
JPS62162215A (en) * 1986-10-20 1987-07-18 Hitachi Ltd Magnetic head
JPS62247213A (en) * 1986-10-20 1987-10-28 Hitachi Ltd Magnetic head
JPS62247212A (en) * 1986-10-20 1987-10-28 Hitachi Ltd Magnetic heads
JPS62247214A (en) * 1986-10-20 1987-10-28 Hitachi Ltd Magnetic head
JPS62162216A (en) * 1986-10-20 1987-07-18 Hitachi Ltd Magnetic head
JPH0562282B2 (en) * 1986-10-20 1993-09-08 Hitachi Ltd
JP2006158059A (en) * 2004-11-29 2006-06-15 Yaskawa Electric Corp Magnetic encoder and motor equipped with the same
JP4622487B2 (en) * 2004-11-29 2011-02-02 株式会社安川電機 Magnetic encoder and motor equipped with the same
JP2021530707A (en) * 2018-07-20 2021-11-11 フラバ ベスローテン ヴェンノーツハップFraba B.V. Rotation angle measurement system

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