JPS642904B2 - - Google Patents

Info

Publication number
JPS642904B2
JPS642904B2 JP57169645A JP16964582A JPS642904B2 JP S642904 B2 JPS642904 B2 JP S642904B2 JP 57169645 A JP57169645 A JP 57169645A JP 16964582 A JP16964582 A JP 16964582A JP S642904 B2 JPS642904 B2 JP S642904B2
Authority
JP
Japan
Prior art keywords
signal
synchronous
frequency
metal
phase
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.)
Expired
Application number
JP57169645A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5960277A (ja
Inventor
Masahiro Tarui
Yasumoto Suzuki
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.)
Anritsu Corp
Original Assignee
Anritsu 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 Anritsu Corp filed Critical Anritsu Corp
Priority to JP57169645A priority Critical patent/JPS5960277A/ja
Publication of JPS5960277A publication Critical patent/JPS5960277A/ja
Publication of JPS642904B2 publication Critical patent/JPS642904B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
    • G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
    • G01V3/105—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
    • G01V3/107—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops using compensating coil or loop arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
JP57169645A 1982-09-30 1982-09-30 金属検出装置 Granted JPS5960277A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57169645A JPS5960277A (ja) 1982-09-30 1982-09-30 金属検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57169645A JPS5960277A (ja) 1982-09-30 1982-09-30 金属検出装置

Publications (2)

Publication Number Publication Date
JPS5960277A JPS5960277A (ja) 1984-04-06
JPS642904B2 true JPS642904B2 (de) 1989-01-19

Family

ID=15890315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57169645A Granted JPS5960277A (ja) 1982-09-30 1982-09-30 金属検出装置

Country Status (1)

Country Link
JP (1) JPS5960277A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006009048A1 (ja) * 2004-07-16 2006-01-26 Okayama University 磁気検知装置及び物質判定装置

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629286A (ja) * 1985-07-05 1987-01-17 Tokyo Gas Co Ltd 地下埋設物の探知方法及びその装置
JP2556740B2 (ja) * 1988-12-29 1996-11-20 大日本印刷株式会社 混合包装体
JPH03125987A (ja) * 1989-10-11 1991-05-29 Anritsu Corp 金属検出機
CN103180760B (zh) 2010-10-07 2016-10-26 梅特勒-托利多安全线有限公司 用于操作金属探测系统的方法以及金属探测系统
EP2439560B1 (de) 2010-10-07 2013-05-29 Mettler-Toledo Safeline Limited Verfahren für den Betrieb eines Metalldetektionssystems und Metalldetektionssystem
EP2439559B1 (de) 2010-10-07 2013-05-29 Mettler-Toledo Safeline Limited Verfahren für den Betrieb eines Metalldetektionssystems und Metalldetektionssystem
US9018935B2 (en) 2011-09-19 2015-04-28 Mettler-Toledo Safeline Limited Method for operating a metal detection apparatus and apparatus
EP2924472B1 (de) * 2014-03-25 2020-01-15 Mettler-Toledo Safeline Limited Verfahren zur Überwachung des Betriebs eines Metalldetektionssystems und Metalldetektionssystem
KR102580035B1 (ko) * 2017-01-18 2023-09-20 한국전자통신연구원 혼합 신호 기반의 단일 여기 코일을 이용한 상자성 물질 검출 방법 및 이를 위한 장치

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5854712Y2 (ja) * 1980-02-29 1983-12-13 株式会社島津製作所 金属検知器
JPS5849996B2 (ja) * 1980-03-13 1983-11-08 株式会社東芝 直列点灯回路の断芯検出装置
JPS5845548A (ja) * 1981-09-11 1983-03-16 Nikka Densoku Kk 導電性物体の検出方法およびこの方法を実施するための装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006009048A1 (ja) * 2004-07-16 2006-01-26 Okayama University 磁気検知装置及び物質判定装置

Also Published As

Publication number Publication date
JPS5960277A (ja) 1984-04-06

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