JPS55113946A - Magnetic foreign matter detector for non-magnetic metal wire - Google Patents
Magnetic foreign matter detector for non-magnetic metal wireInfo
- 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
Links
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
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) |
-
1979
- 1979-02-26 JP JP2072079A patent/JPS55113946A/en active Pending
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