JPS5948673A - 金属検知装置 - Google Patents

金属検知装置

Info

Publication number
JPS5948673A
JPS5948673A JP57159260A JP15926082A JPS5948673A JP S5948673 A JPS5948673 A JP S5948673A JP 57159260 A JP57159260 A JP 57159260A JP 15926082 A JP15926082 A JP 15926082A JP S5948673 A JPS5948673 A JP S5948673A
Authority
JP
Japan
Prior art keywords
circuit
signal
circuits
vehicle
level
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
Application number
JP57159260A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6260032B2 (enrdf_load_stackoverflow
Inventor
Yoshio Hattori
服部　恵夫
Koichi Yomogihara
弘一 蓬原
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.)
JAPANESE NATIONAL RAILWAYS<JNR>
Nippon Signal Co Ltd
Japan National Railways
Nippon Kokuyu Tetsudo
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Nippon Signal Co Ltd
Japan National Railways
Nippon Kokuyu Tetsudo
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 JAPANESE NATIONAL RAILWAYS<JNR>, Nippon Signal Co Ltd, Japan National Railways, Nippon Kokuyu Tetsudo filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP57159260A priority Critical patent/JPS5948673A/ja
Publication of JPS5948673A publication Critical patent/JPS5948673A/ja
Publication of JPS6260032B2 publication Critical patent/JPS6260032B2/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

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)
  • Geophysics And Detection Of Objects (AREA)
JP57159260A 1982-09-13 1982-09-13 金属検知装置 Granted JPS5948673A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57159260A JPS5948673A (ja) 1982-09-13 1982-09-13 金属検知装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57159260A JPS5948673A (ja) 1982-09-13 1982-09-13 金属検知装置

Publications (2)

Publication Number Publication Date
JPS5948673A true JPS5948673A (ja) 1984-03-19
JPS6260032B2 JPS6260032B2 (enrdf_load_stackoverflow) 1987-12-14

Family

ID=15689869

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57159260A Granted JPS5948673A (ja) 1982-09-13 1982-09-13 金属検知装置

Country Status (1)

Country Link
JP (1) JPS5948673A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8278918B2 (en) 2010-10-07 2012-10-02 Mettler-Toledo Safeline Limited Method for operating of a metal detection system and metal detection system
US8314713B2 (en) 2010-10-07 2012-11-20 Mettler-Toledo Safeline Limited Method for monitoring the operation of a metal detection system and metal detection system
US8587301B2 (en) 2010-10-07 2013-11-19 Mettler-Toledo Safeline Limited Method for operating a metal detection system and metal detection system
US9018935B2 (en) 2011-09-19 2015-04-28 Mettler-Toledo Safeline Limited Method for operating a metal detection apparatus and apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8278918B2 (en) 2010-10-07 2012-10-02 Mettler-Toledo Safeline Limited Method for operating of a metal detection system and metal detection system
US8314713B2 (en) 2010-10-07 2012-11-20 Mettler-Toledo Safeline Limited Method for monitoring the operation of a metal detection system and metal detection system
US8587301B2 (en) 2010-10-07 2013-11-19 Mettler-Toledo Safeline Limited Method for operating a metal detection system and metal detection system
US9018935B2 (en) 2011-09-19 2015-04-28 Mettler-Toledo Safeline Limited Method for operating a metal detection apparatus and apparatus

Also Published As

Publication number Publication date
JPS6260032B2 (enrdf_load_stackoverflow) 1987-12-14

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