JPS5420759A - Metal detector - Google Patents

Metal detector

Info

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
Application number
JP8528877A
Other languages
Japanese (ja)
Inventor
Yoshiaki Otama
Mikio Takagi
Takatoshi Hotta
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.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
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 Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP8528877A priority Critical patent/JPS5420759A/en
Publication of JPS5420759A publication Critical patent/JPS5420759A/en
Pending legal-status Critical Current

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  • 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
JP8528877A 1977-07-15 1977-07-15 Metal detector Pending JPS5420759A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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