JPS5581079A - Non-contact type groove sensor - Google Patents

Non-contact type groove sensor

Info

Publication number
JPS5581079A
JPS5581079A JP15437778A JP15437778A JPS5581079A JP S5581079 A JPS5581079 A JP S5581079A JP 15437778 A JP15437778 A JP 15437778A JP 15437778 A JP15437778 A JP 15437778A JP S5581079 A JPS5581079 A JP S5581079A
Authority
JP
Japan
Prior art keywords
sensor
signals
circuits
output
groove line
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
JP15437778A
Other languages
Japanese (ja)
Other versions
JPS5852467B2 (en
Inventor
Kyoji Fukui
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.)
Shinmaywa Industries Ltd
Original Assignee
Shin Meiva Industry 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 Shin Meiva Industry Ltd filed Critical Shin Meiva Industry Ltd
Priority to JP15437778A priority Critical patent/JPS5852467B2/en
Publication of JPS5581079A publication Critical patent/JPS5581079A/en
Publication of JPS5852467B2 publication Critical patent/JPS5852467B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To detect even a narrow groove at high precision, by eliminating electromagnetic mutual interference of the detecting coil of captioned sensor.
CONSTITUTION: AC power supplies 3, 4 differing in frequency are connected to detection coils 11, 21 of a sensor S which is integral with welding torches set parallel on a plane vertical to, for example, work W face WS and groove line WL. Both the coils 11, 21 change in the value of Q due to the effect of work W, and the balance is broken in both bridges B1, B2, and output signals are issued. These signals are passed through amplifiers 5, 6 and filter circuits 7, 8, and only 1 and 1.3MHz signals are taken out and are inputted into an amplifier 30 through rectifying circuits 9, 10. When distances l1, l2 between groove line WL and coil center line LC, and IC and 2C are not equal to each other respectively, it results in 1P≠2P, and the outputs in the circuits 9, 10 vary, so that the output value of the amplifier 30 is no longer zero. Thus, depending whether the output is positive or negative, the deviation direction with respect to the sensor S and groove line WL is judged.
COPYRIGHT: (C)1980,JPO&Japio
JP15437778A 1978-12-12 1978-12-12 Non-contact bevel sensor Expired JPS5852467B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15437778A JPS5852467B2 (en) 1978-12-12 1978-12-12 Non-contact bevel sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15437778A JPS5852467B2 (en) 1978-12-12 1978-12-12 Non-contact bevel sensor

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP58111434A Division JPS5916678A (en) 1983-06-20 1983-06-20 Noncontact type groove sensor

Publications (2)

Publication Number Publication Date
JPS5581079A true JPS5581079A (en) 1980-06-18
JPS5852467B2 JPS5852467B2 (en) 1983-11-22

Family

ID=15582812

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15437778A Expired JPS5852467B2 (en) 1978-12-12 1978-12-12 Non-contact bevel sensor

Country Status (1)

Country Link
JP (1) JPS5852467B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5749801A (en) * 1980-09-10 1982-03-24 Japanese National Railways<Jnr> Eddy current type rail displacement sensor
JP2006341545A (en) * 2005-06-10 2006-12-21 Aubex Corp Applicator and manufacturing method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02211657A (en) * 1989-02-10 1990-08-22 Furukawa Electric Co Ltd:The Heat pipe type radiator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5749801A (en) * 1980-09-10 1982-03-24 Japanese National Railways<Jnr> Eddy current type rail displacement sensor
JP2006341545A (en) * 2005-06-10 2006-12-21 Aubex Corp Applicator and manufacturing method thereof

Also Published As

Publication number Publication date
JPS5852467B2 (en) 1983-11-22

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