JPS637634B2 - - Google Patents

Info

Publication number
JPS637634B2
JPS637634B2 JP56072716A JP7271681A JPS637634B2 JP S637634 B2 JPS637634 B2 JP S637634B2 JP 56072716 A JP56072716 A JP 56072716A JP 7271681 A JP7271681 A JP 7271681A JP S637634 B2 JPS637634 B2 JP S637634B2
Authority
JP
Japan
Prior art keywords
frequency
metal
transmitting coil
coil
frequency divider
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
JP56072716A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57187650A (en
Inventor
Masahiro Tarui
Yasumoto Suzuki
Toshiharu Tanaka
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 JP56072716A priority Critical patent/JPS57187650A/ja
Publication of JPS57187650A publication Critical patent/JPS57187650A/ja
Publication of JPS637634B2 publication Critical patent/JPS637634B2/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)
JP56072716A 1981-05-13 1981-05-13 Metal detector Granted JPS57187650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56072716A JPS57187650A (en) 1981-05-13 1981-05-13 Metal detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56072716A JPS57187650A (en) 1981-05-13 1981-05-13 Metal detector

Publications (2)

Publication Number Publication Date
JPS57187650A JPS57187650A (en) 1982-11-18
JPS637634B2 true JPS637634B2 (en]) 1988-02-17

Family

ID=13497347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56072716A Granted JPS57187650A (en) 1981-05-13 1981-05-13 Metal detector

Country Status (1)

Country Link
JP (1) JPS57187650A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0734742U (ja) * 1993-12-16 1995-06-27 サッポロビール株式会社 瓶詰め飲料用ラックおよびラックユニット

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6249283A (ja) * 1985-08-28 1987-03-03 Nec Corp フエライト近接センサ
US4647910A (en) * 1985-09-17 1987-03-03 Allied Corporation Selector for AC magnetic inductive field receiver coils
ES2006048A6 (es) * 1988-01-15 1989-04-01 Gosalbez Gosalbez Fco Jose Sistema detector de materiales magneticos.
DE102004047188B4 (de) * 2004-09-29 2022-10-27 Robert Bosch Gmbh Vorrichtung zur Ortung metallischer Objekte
EP2439560B1 (en) 2010-10-07 2013-05-29 Mettler-Toledo Safeline Limited Method for monitoring the operation of a metal detection system and metal detection system
EP2439559B1 (en) 2010-10-07 2013-05-29 Mettler-Toledo Safeline Limited Method for operating of a metal detection system and metal detection system
BR112013008207B1 (pt) 2010-10-07 2021-06-01 Mettler-Toledo Safeline Limited Método para operar um sistema de detecção de metal e um sistema de detecção de metal
US9018935B2 (en) 2011-09-19 2015-04-28 Mettler-Toledo Safeline Limited Method for operating a metal detection apparatus and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0734742U (ja) * 1993-12-16 1995-06-27 サッポロビール株式会社 瓶詰め飲料用ラックおよびラックユニット

Also Published As

Publication number Publication date
JPS57187650A (en) 1982-11-18

Similar Documents

Publication Publication Date Title
EP2439560B1 (en) Method for monitoring the operation of a metal detection system and metal detection system
US2489920A (en) Metal detector
JP6544948B2 (ja) 金属検出システムの動作を監視するための方法および金属検出システム
GB2361544A (en) Metal detector
JPS637634B2 (en])
JPH0797009B2 (ja) インダクタンス形変位センサ
WO2002025318A1 (en) Metal detector
EP3726256B1 (en) Method for operating a metal detector and metal detector
JPS6341502B2 (en])
JPS637633B2 (en])
JPS642904B2 (en])
JPS6332157B2 (en])
JPS6078378A (ja) 金属検出装置
JPH0411187Y2 (en])
JPH08271640A (ja) 金属検出装置
JPH05134053A (ja) 金属検出装置
JPH0830739B2 (ja) 金属検出機
JP2583072B2 (ja) 金属検出機
US2996662A (en) Magnetic densitometer
JPH05232247A (ja) 金属検出装置
JPS5960275A (ja) 金属検出装置
SU1732254A1 (ru) Устройство дл электромагнитного контрол
JPH03125988A (ja) 金属検出機の検出レベル設定方法
JPH055510Y2 (en])
RU1827618C (ru) Устройство дл контрол ферромагнитных изделий