HK39481A - Improvements in or relating to metal detectors - Google Patents

Improvements in or relating to metal detectors

Info

Publication number
HK39481A
HK39481A HK39481A HK39481A HK39481A HK 39481 A HK39481 A HK 39481A HK 39481 A HK39481 A HK 39481A HK 39481 A HK39481 A HK 39481A HK 39481 A HK39481 A HK 39481A
Authority
HK
Hong Kong
Prior art keywords
relating
metal detectors
detectors
metal
Prior art date
Application number
HK39481A
Inventor
Yue Yuk-Yven
Original Assignee
Alert Enterprises Ltd
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 Alert Enterprises Ltd filed Critical Alert Enterprises Ltd
Publication of HK39481A publication Critical patent/HK39481A/en

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
    • G01V3/101—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
    • G01V3/102—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil by measuring amplitude
    • 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
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Geophysics And Detection Of Objects (AREA)
HK39481A 1977-03-01 1981-08-06 Improvements in or relating to metal detectors HK39481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB860577A GB1585485A (en) 1977-03-01 1977-03-01 Metal detectors

Publications (1)

Publication Number Publication Date
HK39481A true HK39481A (en) 1981-08-14

Family

ID=9855704

Family Applications (1)

Application Number Title Priority Date Filing Date
HK39481A HK39481A (en) 1977-03-01 1981-08-06 Improvements in or relating to metal detectors

Country Status (2)

Country Link
GB (1) GB1585485A (en)
HK (1) HK39481A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125741B1 (en) * 1983-01-20 1990-08-08 Scopemoor Limited Detector for buried objects
CN108897049A (en) * 2018-09-20 2018-11-27 贵州电网有限责任公司 A kind of insulating disc microspur metal detecting device based on GIS device

Also Published As

Publication number Publication date
GB1585485A (en) 1981-03-04

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