JPS5458478A - Rotation detector - Google Patents

Rotation detector

Info

Publication number
JPS5458478A
JPS5458478A JP12448077A JP12448077A JPS5458478A JP S5458478 A JPS5458478 A JP S5458478A JP 12448077 A JP12448077 A JP 12448077A JP 12448077 A JP12448077 A JP 12448077A JP S5458478 A JPS5458478 A JP S5458478A
Authority
JP
Japan
Prior art keywords
magnetic material
detecting element
magnetism detecting
magnet
magnetism
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
JP12448077A
Other languages
Japanese (ja)
Inventor
Takuyoshi Hirose
Kiyoshi Shimozawa
Katsuhiro Oota
Takao Sugizaki
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP12448077A priority Critical patent/JPS5458478A/en
Publication of JPS5458478A publication Critical patent/JPS5458478A/en
Pending legal-status Critical Current

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  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)

Abstract

PURPOSE: To detect the number of revolutions and rotating angles of a rotator with a simple construction and with good accuracy by providing a magnetism detecting element which is so fixed as to detect magnetic fluxes.
CONSTITUTION: When there is a non-magnetic material 2a between a magnet 4 and a magnetism detecting element 5, the magnetism detecting element 5 produces its output. When the non-magnetism matirial does not exist between the magnet 4 and magnetism detecting element 5 and between both is shielded by a magnetic material, then the magnetic flux of the magnet 4 does not arrive at the magnetism detecting element 5 owing to the shield effect of the magnetic material, hence this element does not produce any output. As a disc 2 rotates, the configuration between the magnetic material and the non-magnetic material moves and therefore the magnetism detecting element 5 produces the outputs equal to the times of the passage of the non-magnetic material 2a, from which the number of revolutions and rotating angles of the rotator may be known
COPYRIGHT: (C)1979,JPO&Japio
JP12448077A 1977-10-19 1977-10-19 Rotation detector Pending JPS5458478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12448077A JPS5458478A (en) 1977-10-19 1977-10-19 Rotation detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12448077A JPS5458478A (en) 1977-10-19 1977-10-19 Rotation detector

Publications (1)

Publication Number Publication Date
JPS5458478A true JPS5458478A (en) 1979-05-11

Family

ID=14886553

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12448077A Pending JPS5458478A (en) 1977-10-19 1977-10-19 Rotation detector

Country Status (1)

Country Link
JP (1) JPS5458478A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61183083A (en) * 1985-02-06 1986-08-15 株式会社日立製作所 Controller for man conveyor
JPS6265560U (en) * 1985-10-15 1987-04-23
US4851772A (en) * 1987-04-25 1989-07-25 Vdo Adolf Schindling Ag Magnet assembly for measurement of displacement
JPH01173680U (en) * 1988-05-26 1989-12-08
US5119670A (en) * 1991-01-02 1992-06-09 Delco Electronics Corporation Crankshaft angular position detecting apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4730839U (en) * 1971-04-30 1972-12-07
JPS51469A (en) * 1974-06-20 1976-01-06 Shoichi Murata Jushikakonyoru panerueseizohoho

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4730839U (en) * 1971-04-30 1972-12-07
JPS51469A (en) * 1974-06-20 1976-01-06 Shoichi Murata Jushikakonyoru panerueseizohoho

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61183083A (en) * 1985-02-06 1986-08-15 株式会社日立製作所 Controller for man conveyor
JPS6265560U (en) * 1985-10-15 1987-04-23
US4851772A (en) * 1987-04-25 1989-07-25 Vdo Adolf Schindling Ag Magnet assembly for measurement of displacement
JPH01173680U (en) * 1988-05-26 1989-12-08
US5119670A (en) * 1991-01-02 1992-06-09 Delco Electronics Corporation Crankshaft angular position detecting apparatus

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