JPS5229247A - Metal detecting method - Google Patents
Metal detecting methodInfo
- Publication number
- JPS5229247A JPS5229247A JP50105465A JP10546575A JPS5229247A JP S5229247 A JPS5229247 A JP S5229247A JP 50105465 A JP50105465 A JP 50105465A JP 10546575 A JP10546575 A JP 10546575A JP S5229247 A JPS5229247 A JP S5229247A
- Authority
- JP
- Japan
- Prior art keywords
- detecting method
- metal detecting
- regard
- approach
- edges
- 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
Links
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
PURPOSE: By detecting variations of predetermined alternation magnetic flux with search coil, approach, passing and edges are detected accurately without regard to surface blemishes of nonmagnetic conductor metals.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50105465A JPS5843710B2 (en) | 1975-08-29 | 1975-08-29 | Kinzokubutsutaino Kenchihouhou |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50105465A JPS5843710B2 (en) | 1975-08-29 | 1975-08-29 | Kinzokubutsutaino Kenchihouhou |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5229247A true JPS5229247A (en) | 1977-03-04 |
JPS5843710B2 JPS5843710B2 (en) | 1983-09-28 |
Family
ID=14408314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50105465A Expired JPS5843710B2 (en) | 1975-08-29 | 1975-08-29 | Kinzokubutsutaino Kenchihouhou |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5843710B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5339029A (en) * | 1991-08-14 | 1994-08-16 | Elecktro-Mechanik Gmbh | Methods and apparatus for measuring the postion of an edge of a metal strip by electronic induction |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3872380A (en) * | 1974-01-02 | 1975-03-18 | Robert F Gardiner | Metal detector distinguishing between different metals by using a bias circuit actuated by the phase shifts caused by the metals |
-
1975
- 1975-08-29 JP JP50105465A patent/JPS5843710B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3872380A (en) * | 1974-01-02 | 1975-03-18 | Robert F Gardiner | Metal detector distinguishing between different metals by using a bias circuit actuated by the phase shifts caused by the metals |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5339029A (en) * | 1991-08-14 | 1994-08-16 | Elecktro-Mechanik Gmbh | Methods and apparatus for measuring the postion of an edge of a metal strip by electronic induction |
Also Published As
Publication number | Publication date |
---|---|
JPS5843710B2 (en) | 1983-09-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS51127785A (en) | Measuring method of information around the surface of the substances t o be measured applying the nucleus magnet resonance phenomenon | |
JPS5213252A (en) | Electromagnet for suspension | |
JPS5229247A (en) | Metal detecting method | |
JPS5224593A (en) | Material detecting device | |
JPS5275352A (en) | Buried metal pipe detector and receiver | |
JPS5213145A (en) | Discriminating method for rough and fine coil heater with patterns | |
JPS532045A (en) | Coordinates read method and its device | |
JPS53135378A (en) | Electromagnetical non-destructive flaw detection method and apparatus for the same | |
JPS525672A (en) | Magnetic fluid recovering apparatus | |
JPS51141655A (en) | Detecting method of magnetic metal divided from non-magnetic product | |
JPS51131670A (en) | Method to measure magnetism of the magnetic body | |
JPS5212498A (en) | Magnetic alloy | |
JPS53135379A (en) | Electromagnetical non-destructive detection method and apparatus for the same | |
JPS53140249A (en) | Method and apparatus for welding | |
JPS549652A (en) | Differential transformer type sensor | |
JPS5244695A (en) | Iron piece detector | |
JPS5224592A (en) | Material detecting device | |
JPS52153793A (en) | Inspecting apparatus by eddy current | |
JPS5251978A (en) | Method of measuring coercive force of ferromagnetic materials | |
JPS529484A (en) | Magnetic metal plate stress measuring apparatus | |
JPS5269381A (en) | Method of magnetically detecting flaw | |
JPS52156519A (en) | Magnetic circuit for magnetic babble | |
JPS5253474A (en) | Minute magnetism measuring apparatus | |
JPS5232598A (en) | Electrodepositing method of high permeability permalloy thin film | |
JPS51145076A (en) | Method for detecting center position |