JPS5543484A - Position detecting device - Google Patents

Position detecting device

Info

Publication number
JPS5543484A
JPS5543484A JP11774178A JP11774178A JPS5543484A JP S5543484 A JPS5543484 A JP S5543484A JP 11774178 A JP11774178 A JP 11774178A JP 11774178 A JP11774178 A JP 11774178A JP S5543484 A JPS5543484 A JP S5543484A
Authority
JP
Japan
Prior art keywords
differential amplifier
core
differential
coils
switching circuit
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
JP11774178A
Other languages
Japanese (ja)
Inventor
Teruo Kimoto
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.)
Mitsutoyo Manufacturing Co Ltd
Original Assignee
Mitsutoyo Manufacturing 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 Mitsutoyo Manufacturing Co Ltd filed Critical Mitsutoyo Manufacturing Co Ltd
Priority to JP11774178A priority Critical patent/JPS5543484A/en
Publication of JPS5543484A publication Critical patent/JPS5543484A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To enhance the detection accuracy by using a differential transformer and the differential amplifier.
CONSTITUTION: Between the positive and the negative input terminals of the differential amplifier 1, the secondary coils 23 different in winding direction are connected in series and the primary coil 4 is disposed in opposite to the secondary coils 2, 3. The differential transformer is constructed by the coils 2W4. To the output terminal of the differential amplifier 1, the switching circuit 6 is connected through the buffer 5. Thus, when the determining member 9 is pressed to the member to be determined, the core 7 is slided upward, the positive feed back is applied to the differential amplifier 1 through the secondary coil 2, the core 7, and the primary coil 4, the oscillation is done and the output signal is inputted to the switching circuit 6 to open or close the circuit 6. Accordingly, insufficient contact or contact wearing and the like due to mist and the like in the atmosphere of the used site like using the electric contact, the detection error is not generated.
COPYRIGHT: (C)1980,JPO&Japio
JP11774178A 1978-09-22 1978-09-22 Position detecting device Pending JPS5543484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11774178A JPS5543484A (en) 1978-09-22 1978-09-22 Position detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11774178A JPS5543484A (en) 1978-09-22 1978-09-22 Position detecting device

Publications (1)

Publication Number Publication Date
JPS5543484A true JPS5543484A (en) 1980-03-27

Family

ID=14719144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11774178A Pending JPS5543484A (en) 1978-09-22 1978-09-22 Position detecting device

Country Status (1)

Country Link
JP (1) JPS5543484A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH032242U (en) * 1989-05-29 1991-01-10

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH032242U (en) * 1989-05-29 1991-01-10

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