JPS5560801A - Displacement detector - Google Patents

Displacement detector

Info

Publication number
JPS5560801A
JPS5560801A JP13424378A JP13424378A JPS5560801A JP S5560801 A JPS5560801 A JP S5560801A JP 13424378 A JP13424378 A JP 13424378A JP 13424378 A JP13424378 A JP 13424378A JP S5560801 A JPS5560801 A JP S5560801A
Authority
JP
Japan
Prior art keywords
displacement
varies
metal plate
amplitude
constitution
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
JP13424378A
Other languages
Japanese (ja)
Inventor
Shigeru Tanaka
Susumu Tadakuma
Kazutoshi Miura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP13424378A priority Critical patent/JPS5560801A/en
Publication of JPS5560801A publication Critical patent/JPS5560801A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE: To simplify the circuit constitution of a displacement detector by detecting the amplitude of an oscillation output from an oscillating circuit which is provided as a resonance element with a coil where Q varies in response to the variation of the distance to a moving conductor.
CONSTITUTION: A detecting coil 14 for making up a resonance element of a Colpitts oscillator 10 faces a detected metal plate 16 and the Q value varies in proportion to the displacement quantity x of the detected metal plate 16. Accordingly, the amplitude value of the oscillation output from an oscillator 10 varies with the displacement and the amplitude value can be measured as a DC voltage proportional to the displacement through a simple structure of positive and negative polarity output circuits 30, 40.
COPYRIGHT: (C)1980,JPO&Japio
JP13424378A 1978-10-31 1978-10-31 Displacement detector Pending JPS5560801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13424378A JPS5560801A (en) 1978-10-31 1978-10-31 Displacement detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13424378A JPS5560801A (en) 1978-10-31 1978-10-31 Displacement detector

Publications (1)

Publication Number Publication Date
JPS5560801A true JPS5560801A (en) 1980-05-08

Family

ID=15123741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13424378A Pending JPS5560801A (en) 1978-10-31 1978-10-31 Displacement detector

Country Status (1)

Country Link
JP (1) JPS5560801A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015137888A (en) * 2014-01-21 2015-07-30 新光電機株式会社 displacement sensor
WO2024202685A1 (en) * 2023-03-24 2024-10-03 株式会社東京精密 Machine tool with automatic tool changer, and eddy current sensor used for same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133665A (en) * 1974-06-17 1976-03-22 Mallory & Co Inc P R

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133665A (en) * 1974-06-17 1976-03-22 Mallory & Co Inc P R

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015137888A (en) * 2014-01-21 2015-07-30 新光電機株式会社 displacement sensor
WO2024202685A1 (en) * 2023-03-24 2024-10-03 株式会社東京精密 Machine tool with automatic tool changer, and eddy current sensor used for same

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