GB1096061A - Electrical apparatus for distinguishing between different metallic objects - Google Patents

Electrical apparatus for distinguishing between different metallic objects

Info

Publication number
GB1096061A
GB1096061A GB423965A GB423965A GB1096061A GB 1096061 A GB1096061 A GB 1096061A GB 423965 A GB423965 A GB 423965A GB 423965 A GB423965 A GB 423965A GB 1096061 A GB1096061 A GB 1096061A
Authority
GB
United Kingdom
Prior art keywords
coin
distinguishing
electrical apparatus
metallic objects
different metallic
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
GB423965A
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.)
Omron Corp
Original Assignee
Tateisi Electronics Co
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 Tateisi Electronics Co filed Critical Tateisi Electronics Co
Publication of GB1096061A publication Critical patent/GB1096061A/en
Expired 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
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/08—Testing the magnetic or electric properties

Landscapes

  • Physics & Mathematics (AREA)
  • General 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)
  • Geophysics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Testing Of Coins (AREA)

Abstract

1,096,061. Testing coins. TATEISI ELECTRONICS CO. Feb. 1, 1965 [Feb. 11, 1964], No. 4239/65. Headings G4V and G4X. In apparatus for testing coins in an automatic vending machine a primary coil 2 and a secondary coil 3 are wound on the same non- magnetic bobbin (c), the magnetic coupling between the coils being influenced by a coin to be tested 15. In the embodiment of Fig. 1, a coin 15 is compared with a genuine coin 14, identity causing a signal from a NOT circuit 12 to operate a relay 13. In Fig. 3 (not shown) an electrical equivalent (16, 17) is used instead of the genuine coin 14. In a modification (Fig. 4 not shown), only one pair of coils is used, the secondary coil being connected via an amplifier and rectifier to an undervoltage relay.
GB423965A 1964-02-11 1965-02-01 Electrical apparatus for distinguishing between different metallic objects Expired GB1096061A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP702164 1964-02-11

Publications (1)

Publication Number Publication Date
GB1096061A true GB1096061A (en) 1967-12-20

Family

ID=11654367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB423965A Expired GB1096061A (en) 1964-02-11 1965-02-01 Electrical apparatus for distinguishing between different metallic objects

Country Status (3)

Country Link
DE (1) DE1474895A1 (en)
FR (1) FR1424187A (en)
GB (1) GB1096061A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK119350B (en) * 1966-04-15 1970-12-14 Nielsen & Son Maskinfab As H Sensing means for an electric control circuit for an electrically driven conveyor track.
FR2701140A1 (en) * 1993-02-01 1994-08-05 Tech Innovations Medicales Device for counting surgical compresses.

Also Published As

Publication number Publication date
FR1424187A (en) 1966-01-07
DE1474895A1 (en) 1969-07-10

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