JPS55113946A - Magnetic foreign matter detector for non-magnetic metal wire - Google Patents

Magnetic foreign matter detector for non-magnetic metal wire

Info

Publication number
JPS55113946A
JPS55113946A JP2072079A JP2072079A JPS55113946A JP S55113946 A JPS55113946 A JP S55113946A JP 2072079 A JP2072079 A JP 2072079A JP 2072079 A JP2072079 A JP 2072079A JP S55113946 A JPS55113946 A JP S55113946A
Authority
JP
Japan
Prior art keywords
magnetic
foreign matter
metal wire
impact
yoke
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
JP2072079A
Other languages
Japanese (ja)
Inventor
Yusaku Himono
Yuzo Kashiyanagi
Mikio Murata
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP2072079A priority Critical patent/JPS55113946A/en
Publication of JPS55113946A publication Critical patent/JPS55113946A/en
Pending legal-status Critical Current

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Landscapes

  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE: To prevent erroneous signal to be caused by impact or mechanical vibration by composing the magnet of two magnet sections having one magnetic pole each, with a yoke surrounding two magnet sections and the detection coil.
CONSTITUTION: A yoke 20 is provided having a window hole 20a surrounding the magnet sections 15 and 15' and the detection coil 18 while the magnet sections 15 and 15' are fastened on the wall surface facing the window hole 20a. The yoke 20 serves as a rigid body so that no change is caused in the space between wall surface of the window hole 20a even if any impact or mechanical vibration given the apparatus. Thus, there is no variation in the clearance 12, keeping the detection coil 18 free from impact or mechanical vibration.
COPYRIGHT: (C)1980,JPO&Japio
JP2072079A 1979-02-26 1979-02-26 Magnetic foreign matter detector for non-magnetic metal wire Pending JPS55113946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2072079A JPS55113946A (en) 1979-02-26 1979-02-26 Magnetic foreign matter detector for non-magnetic metal wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2072079A JPS55113946A (en) 1979-02-26 1979-02-26 Magnetic foreign matter detector for non-magnetic metal wire

Publications (1)

Publication Number Publication Date
JPS55113946A true JPS55113946A (en) 1980-09-02

Family

ID=12034995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2072079A Pending JPS55113946A (en) 1979-02-26 1979-02-26 Magnetic foreign matter detector for non-magnetic metal wire

Country Status (1)

Country Link
JP (1) JPS55113946A (en)

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