JPS554582A - Detector for magnetic scale - Google Patents

Detector for magnetic scale

Info

Publication number
JPS554582A
JPS554582A JP5039479A JP5039479A JPS554582A JP S554582 A JPS554582 A JP S554582A JP 5039479 A JP5039479 A JP 5039479A JP 5039479 A JP5039479 A JP 5039479A JP S554582 A JPS554582 A JP S554582A
Authority
JP
Japan
Prior art keywords
magnetic
saturable
scale
core
coils
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
JP5039479A
Other languages
Japanese (ja)
Inventor
Saburo Uemura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP5039479A priority Critical patent/JPS554582A/en
Publication of JPS554582A publication Critical patent/JPS554582A/en
Pending legal-status Critical Current

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  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE: To accurately read out magnetic scale signals without receiving the effect of disturbing magnetic fields by disposing the two saturable coils applied with windings on two saturable cores by leaving the specific spacing perpendicularly to the face of a magnetic scale.
CONSTITUTION: In order to detect the magnetic signals of the magnetic scale being repeated periodically, the saturable coils 9, 10 applied with windings on two thin- plate form saturable cores 7, 8 are disposed perpendicularly to the face of the magnetic scale by spacing these by (η±1/2)λ when the graduation pitch of the scale is let to be λ. These two saturable coils are connected to one balance detector 5 which is excited by high frequency AC voltage. When a DC magnetic field is applied only to the saturable core 7, the pulse form high frequency magnetic field and the DC magnetic field being applied from the outside add in the core 7 and the magnetic detector produces the DC output voltage proportional to the difference between the magnetic flux penetrating in the saturable core 7 and the magnetic flux penetrating in the core 8.
COPYRIGHT: (C)1980,JPO&Japio
JP5039479A 1979-04-24 1979-04-24 Detector for magnetic scale Pending JPS554582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5039479A JPS554582A (en) 1979-04-24 1979-04-24 Detector for magnetic scale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5039479A JPS554582A (en) 1979-04-24 1979-04-24 Detector for magnetic scale

Publications (1)

Publication Number Publication Date
JPS554582A true JPS554582A (en) 1980-01-14

Family

ID=12857648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5039479A Pending JPS554582A (en) 1979-04-24 1979-04-24 Detector for magnetic scale

Country Status (1)

Country Link
JP (1) JPS554582A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135945A (en) * 1984-07-30 1986-02-20 泉株式会社 Non-combustible laminated film material
JPS61227047A (en) * 1985-04-02 1986-10-09 平岡織染株式会社 Heat-resistant flame-retardant film body

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135945A (en) * 1984-07-30 1986-02-20 泉株式会社 Non-combustible laminated film material
JPS6246347B2 (en) * 1984-07-30 1987-10-01 Izumi Kk
JPS61227047A (en) * 1985-04-02 1986-10-09 平岡織染株式会社 Heat-resistant flame-retardant film body
JPH0420385B2 (en) * 1985-04-02 1992-04-02 Hiraoka Shokusen

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