JPS57118110A - Position sensor - Google Patents

Position sensor

Info

Publication number
JPS57118110A
JPS57118110A JP13200281A JP13200281A JPS57118110A JP S57118110 A JPS57118110 A JP S57118110A JP 13200281 A JP13200281 A JP 13200281A JP 13200281 A JP13200281 A JP 13200281A JP S57118110 A JPS57118110 A JP S57118110A
Authority
JP
Japan
Prior art keywords
magnet
permanent magnet
coil
soft magnetic
changes
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.)
Granted
Application number
JP13200281A
Other languages
Japanese (ja)
Other versions
JPH0140926B2 (en
Inventor
Shinichiro Iwasaki
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.)
Aisin Corp
Original Assignee
Aisin Seiki 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 Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Publication of JPS57118110A publication Critical patent/JPS57118110A/en
Publication of JPH0140926B2 publication Critical patent/JPH0140926B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE: To form a displacement converter having no mechanical contact mechanisms by moving a permanent magnet in correspondence to displacements, and detecting the movement of said permanent magnet with a coil wound on a soft magnetic material opposed to the permanent magnet.
CONSTITUTION: A permanent magnet 5 is fixed via a connecting member 4 to a movable body 3. The magnet 5 is pressed rightward by means of a spring 6. A soft magnetic material 7 is disposed in parallel to the axial direction of the magnet 5, and a coil 9 is wound on the outside circumference thereof. When the magnet 5 displaces in a left direction, the mangetic flux interlinking to the material 7 changes and therefore the time until coil current attains a prescribed level since the application of voltage to the coil 9 changes. The displacement of a moving body 3 is detected by this change in the time.
COPYRIGHT: (C)1982,JPO&Japio
JP13200281A 1980-08-29 1981-08-21 Position sensor Granted JPS57118110A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18266280A 1980-08-29 1980-08-29

Publications (2)

Publication Number Publication Date
JPS57118110A true JPS57118110A (en) 1982-07-22
JPH0140926B2 JPH0140926B2 (en) 1989-09-01

Family

ID=22669485

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13200281A Granted JPS57118110A (en) 1980-08-29 1981-08-21 Position sensor

Country Status (2)

Country Link
JP (1) JPS57118110A (en)
DE (1) DE3133048A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658014A1 (en) * 1990-02-06 1991-08-09 Turck Werner Kg Electronic proximity switch by variation in magnetic field
DE10249919A1 (en) * 2002-10-26 2004-05-13 Festo Ag & Co. Coil arrangement as a magnetic field sensor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495157A (en) * 1948-08-17 1950-01-17 Westinghouse Electric Corp Electromagnetic device
DE1017805B (en) * 1955-09-29 1957-10-17 Siemens Ag Device for contactless conversion of mechanical deflections into electrical quantities on an inductive basis
US4156223A (en) * 1978-04-21 1979-05-22 Illinois Tool Works Inc. Positional transducer utilizing magnetic elements

Also Published As

Publication number Publication date
DE3133048A1 (en) 1982-04-08
DE3133048C2 (en) 1987-08-06
JPH0140926B2 (en) 1989-09-01

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