JPS5657957A - Revolution detector - Google Patents

Revolution detector

Info

Publication number
JPS5657957A
JPS5657957A JP13402879A JP13402879A JPS5657957A JP S5657957 A JPS5657957 A JP S5657957A JP 13402879 A JP13402879 A JP 13402879A JP 13402879 A JP13402879 A JP 13402879A JP S5657957 A JPS5657957 A JP S5657957A
Authority
JP
Japan
Prior art keywords
disc
tooth profile
profile part
magnetic
rotor
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
JP13402879A
Other languages
Japanese (ja)
Inventor
Daizaburo Kubota
Hiroaki Takase
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13402879A priority Critical patent/JPS5657957A/en
Publication of JPS5657957A publication Critical patent/JPS5657957A/en
Pending legal-status Critical Current

Links

Landscapes

  • Permanent Magnet Type Synchronous Machine (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)

Abstract

PURPOSE: To prevent the vibrating sound produced by the force received by magnetic induction action, in a device of detecting revolutions by magnetic induction action, by integrally mounting an elastic body to a plate body constituting a magnetic circuit.
CONSTITUTION: A vibration absorbing elastic body 21 is integrally formed to a disc 8 of a soft magnetic material having a tooth profile part 8a on the outside circumference, and is fixed to a substrate 1 with a coil bobbin 5 and an annular permanent magnet 6 interposed between the resultant parts and a disc 7 of a soft magnetic material. When a rotor 14 revolves and the magnetic resistance of the magnetic circuit constituted by the tooth profile part 14a of the rotor 14 and the tooth profile part of the disc 8, the signal corresponding to the revolutions is obtained from the coil 13.
COPYRIGHT: (C)1981,JPO&Japio
JP13402879A 1979-10-16 1979-10-16 Revolution detector Pending JPS5657957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13402879A JPS5657957A (en) 1979-10-16 1979-10-16 Revolution detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13402879A JPS5657957A (en) 1979-10-16 1979-10-16 Revolution detector

Publications (1)

Publication Number Publication Date
JPS5657957A true JPS5657957A (en) 1981-05-20

Family

ID=15118682

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13402879A Pending JPS5657957A (en) 1979-10-16 1979-10-16 Revolution detector

Country Status (1)

Country Link
JP (1) JPS5657957A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125867U (en) * 1982-02-18 1983-08-26 ソニー株式会社 Capstan shaft rotation detection device
JPS58136774U (en) * 1982-03-10 1983-09-14 ナカミチ株式会社 Rotation speed detection device
CN110308300A (en) * 2019-06-27 2019-10-08 厦门盈趣科技股份有限公司 A kind of rotating speed measurement method and device merging multifrequency nature data

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125867U (en) * 1982-02-18 1983-08-26 ソニー株式会社 Capstan shaft rotation detection device
JPS58136774U (en) * 1982-03-10 1983-09-14 ナカミチ株式会社 Rotation speed detection device
JPS6143236Y2 (en) * 1982-03-10 1986-12-06
CN110308300A (en) * 2019-06-27 2019-10-08 厦门盈趣科技股份有限公司 A kind of rotating speed measurement method and device merging multifrequency nature data

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