JPS5420759A - Metal detector - Google Patents
Metal detectorInfo
- Publication number
- JPS5420759A JPS5420759A JP8528877A JP8528877A JPS5420759A JP S5420759 A JPS5420759 A JP S5420759A JP 8528877 A JP8528877 A JP 8528877A JP 8528877 A JP8528877 A JP 8528877A JP S5420759 A JPS5420759 A JP S5420759A
- Authority
- JP
- Japan
- Prior art keywords
- metal detector
- coils
- discriminate
- disposing
- noise
- 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
- Geophysics And Detection Of Objects (AREA)
Abstract
PURPOSE: To achieve the improvement in S/N ratio in order to discriminate the signal corresponding to the searching object and the noise by the effect of changes such as ground quality, etc. by disposing a pair of detecting coils in such a manner that they intersect perpendicularly with the magnetic axis of an exciting coil and differentially connecting these coils.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8528877A JPS5420759A (en) | 1977-07-15 | 1977-07-15 | Metal detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8528877A JPS5420759A (en) | 1977-07-15 | 1977-07-15 | Metal detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5420759A true JPS5420759A (en) | 1979-02-16 |
Family
ID=13854371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8528877A Pending JPS5420759A (en) | 1977-07-15 | 1977-07-15 | Metal detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5420759A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6153561A (en) * | 1984-08-23 | 1986-03-17 | Shimadzu Corp | Evaluator for low magnetic-permeability material |
JPS63313087A (en) * | 1987-06-15 | 1988-12-21 | Nissho Kogyo Kk | Method for detecting buried metallic pipe or the like |
JPH03241105A (en) * | 1990-02-16 | 1991-10-28 | Nippon Telegr & Teleph Corp <Ntt> | Road surface cutter |
JPH03123284U (en) * | 1990-03-27 | 1991-12-16 | ||
JP2001159685A (en) * | 1999-10-13 | 2001-06-12 | Hilti Ag | Induction sensor head |
-
1977
- 1977-07-15 JP JP8528877A patent/JPS5420759A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6153561A (en) * | 1984-08-23 | 1986-03-17 | Shimadzu Corp | Evaluator for low magnetic-permeability material |
JPS63313087A (en) * | 1987-06-15 | 1988-12-21 | Nissho Kogyo Kk | Method for detecting buried metallic pipe or the like |
JPH03241105A (en) * | 1990-02-16 | 1991-10-28 | Nippon Telegr & Teleph Corp <Ntt> | Road surface cutter |
JPH03123284U (en) * | 1990-03-27 | 1991-12-16 | ||
JP2001159685A (en) * | 1999-10-13 | 2001-06-12 | Hilti Ag | Induction sensor head |
JP4546633B2 (en) * | 1999-10-13 | 2010-09-15 | ヒルティ アクチエンゲゼルシャフト | Inductive sensor head |
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