JPS57103012A - Displacement detector - Google Patents

Displacement detector

Info

Publication number
JPS57103012A
JPS57103012A JP17981580A JP17981580A JPS57103012A JP S57103012 A JPS57103012 A JP S57103012A JP 17981580 A JP17981580 A JP 17981580A JP 17981580 A JP17981580 A JP 17981580A JP S57103012 A JPS57103012 A JP S57103012A
Authority
JP
Japan
Prior art keywords
frequency
inductance
displacement
magnetic
disc
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
JP17981580A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0570085B2 (OSRAM
Inventor
Koji Uno
Yoshihiro Sato
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP17981580A priority Critical patent/JPS57103012A/ja
Publication of JPS57103012A publication Critical patent/JPS57103012A/ja
Publication of JPH0570085B2 publication Critical patent/JPH0570085B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/243—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the phase or frequency of AC

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
JP17981580A 1980-12-19 1980-12-19 Displacement detector Granted JPS57103012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17981580A JPS57103012A (en) 1980-12-19 1980-12-19 Displacement detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17981580A JPS57103012A (en) 1980-12-19 1980-12-19 Displacement detector

Publications (2)

Publication Number Publication Date
JPS57103012A true JPS57103012A (en) 1982-06-26
JPH0570085B2 JPH0570085B2 (OSRAM) 1993-10-04

Family

ID=16072365

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17981580A Granted JPS57103012A (en) 1980-12-19 1980-12-19 Displacement detector

Country Status (1)

Country Link
JP (1) JPS57103012A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62217101A (ja) * 1986-03-19 1987-09-24 Japan Steel Works Ltd:The プリント基板の基準マ−ク位置検出方法
CN103998275A (zh) * 2011-12-13 2014-08-20 株式会社阿米泰克 位置检测装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940153A (OSRAM) * 1972-08-17 1974-04-15
JPS5017656A (OSRAM) * 1973-06-14 1975-02-25
JPS54100714A (en) * 1978-01-25 1979-08-08 Fujitsu Ltd Floating length metering method for magnetic floating head

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940153A (OSRAM) * 1972-08-17 1974-04-15
JPS5017656A (OSRAM) * 1973-06-14 1975-02-25
JPS54100714A (en) * 1978-01-25 1979-08-08 Fujitsu Ltd Floating length metering method for magnetic floating head

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62217101A (ja) * 1986-03-19 1987-09-24 Japan Steel Works Ltd:The プリント基板の基準マ−ク位置検出方法
CN103998275A (zh) * 2011-12-13 2014-08-20 株式会社阿米泰克 位置检测装置
JPWO2013089205A1 (ja) * 2011-12-13 2015-04-27 株式会社アミテック 位置検出装置
EP2792528A4 (en) * 2011-12-13 2015-08-26 Amiteq Co Ltd POSITION DETECTION DEVICE
US9683829B2 (en) 2011-12-13 2017-06-20 Amiteq Co., Ltd. Position detection device

Also Published As

Publication number Publication date
JPH0570085B2 (OSRAM) 1993-10-04

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