JPS5587908A - Magnetic switching systen generator and rotation detecting device - Google Patents

Magnetic switching systen generator and rotation detecting device

Info

Publication number
JPS5587908A
JPS5587908A JP16001178A JP16001178A JPS5587908A JP S5587908 A JPS5587908 A JP S5587908A JP 16001178 A JP16001178 A JP 16001178A JP 16001178 A JP16001178 A JP 16001178A JP S5587908 A JPS5587908 A JP S5587908A
Authority
JP
Japan
Prior art keywords
magnetic
switching
generator
substance piece
rotary body
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
JP16001178A
Other languages
Japanese (ja)
Inventor
Mitsuo Abe
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 JP16001178A priority Critical patent/JPS5587908A/en
Publication of JPS5587908A publication Critical patent/JPS5587908A/en
Pending legal-status Critical Current

Links

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  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE: To detect the rotation without an external power supply in principle by detecting a change of magnetic flux, which passes a magnetic substance piece, in a switching operation of the magnetic switching element to an external magnetic field by the use of a magnetic switching system generator.
CONSTITUTION: The permanent magnets 6 are mounted on the rotary body 7 to be checked so that the magnets are equiangularly arranged with respect to the center of rotary body, the magnetic switching system generator 5 is attached to the fixed part 8 opposite to the rotary body. The generator 5 consists of the magnetic switching element 1 and the detecting coil 4 which is wound around the cylindrical bobbin 3 and is fixed to the circumference of the element, the magnetic substance piece 2 is made of ferromagnetic material the elasticity of which is greater. The switching operation of the magnetic substance piece is of a snap action type not depending on the change speed of the external magnetic field, and has a fixed response speed determined by the elastic constant of the magnetic substance piece, the change speed of the flux at switching is constant, the wave form of voltage induced in the coil 4 can be made constant regardless of the change speed of the external magnetic field.
COPYRIGHT: (C)1980,JPO&Japio
JP16001178A 1978-12-27 1978-12-27 Magnetic switching systen generator and rotation detecting device Pending JPS5587908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16001178A JPS5587908A (en) 1978-12-27 1978-12-27 Magnetic switching systen generator and rotation detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16001178A JPS5587908A (en) 1978-12-27 1978-12-27 Magnetic switching systen generator and rotation detecting device

Publications (1)

Publication Number Publication Date
JPS5587908A true JPS5587908A (en) 1980-07-03

Family

ID=15706039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16001178A Pending JPS5587908A (en) 1978-12-27 1978-12-27 Magnetic switching systen generator and rotation detecting device

Country Status (1)

Country Link
JP (1) JPS5587908A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109425839A (en) * 2017-08-25 2019-03-05 恩智浦有限公司 The determination method of magnetic field sensor system and its operability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109425839A (en) * 2017-08-25 2019-03-05 恩智浦有限公司 The determination method of magnetic field sensor system and its operability

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