GB8717493D0 - Coin discriminator - Google Patents

Coin discriminator

Info

Publication number
GB8717493D0
GB8717493D0 GB878717493A GB8717493A GB8717493D0 GB 8717493 D0 GB8717493 D0 GB 8717493D0 GB 878717493 A GB878717493 A GB 878717493A GB 8717493 A GB8717493 A GB 8717493A GB 8717493 D0 GB8717493 D0 GB 8717493D0
Authority
GB
United Kingdom
Prior art keywords
coin
comp
microcomputer
coil
eddy currents
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.)
Pending
Application number
GB878717493A
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.)
Scan Coin AB
Original Assignee
Scan Coin AB
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 Scan Coin AB filed Critical Scan Coin AB
Priority to GB878717493A priority Critical patent/GB8717493D0/en
Publication of GB8717493D0 publication Critical patent/GB8717493D0/en
Priority to EP88306690A priority patent/EP0300781B1/en
Priority to AT88306690T priority patent/ATE83571T1/en
Priority to DE8888306690T priority patent/DE3876708T2/en
Pending legal-status Critical Current

Links

Classifications

    • 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)
  • Testing Of Coins (AREA)
  • Noodles (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Pinball Game Machines (AREA)
  • Detergent Compositions (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

A coin (5) under test is subjected to the changing magnetic field produced by pulsing of a test coil (1), and the decay of the resulting eddy currents in the coin is monitored by monitoring the coil voltage induced by the eddy currents. The times T1 and T2 at which the coil voltage falls through voltage levels V1 and V2 is measured by comparators (COMP 1, COMP 2) and a microcomputer (7), and those times are compared by microcomputer (7) with stored reference values to help determine the coin type.
GB878717493A 1987-07-23 1987-07-23 Coin discriminator Pending GB8717493D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB878717493A GB8717493D0 (en) 1987-07-23 1987-07-23 Coin discriminator
EP88306690A EP0300781B1 (en) 1987-07-23 1988-07-21 Coin discriminator
AT88306690T ATE83571T1 (en) 1987-07-23 1988-07-21 COIN DISCRIMINATOR.
DE8888306690T DE3876708T2 (en) 1987-07-23 1988-07-21 COIN DISCRIMINATOR.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878717493A GB8717493D0 (en) 1987-07-23 1987-07-23 Coin discriminator

Publications (1)

Publication Number Publication Date
GB8717493D0 true GB8717493D0 (en) 1987-08-26

Family

ID=10621190

Family Applications (1)

Application Number Title Priority Date Filing Date
GB878717493A Pending GB8717493D0 (en) 1987-07-23 1987-07-23 Coin discriminator

Country Status (4)

Country Link
EP (1) EP0300781B1 (en)
AT (1) ATE83571T1 (en)
DE (1) DE3876708T2 (en)
GB (1) GB8717493D0 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5476168A (en) * 1990-07-05 1995-12-19 Microsystem Controls Pty Ltd Coin validator
GB9010507D0 (en) * 1990-05-10 1990-07-04 Mars Inc Apparatus and method for testing coins
AU660418B2 (en) * 1990-07-05 1995-06-29 Microsystem Controls Pty Ltd Coin validator
DE4224204C2 (en) * 1992-07-22 1998-08-06 Nsm Ag Device for determining the authenticity of coins
DE4339543C2 (en) * 1993-11-19 1998-07-23 Nat Rejectors Gmbh Procedure for checking coins
AUPM301993A0 (en) * 1993-12-17 1994-01-20 Microsystem Controls Pty Ltd Coin validator
US6047808A (en) * 1996-03-07 2000-04-11 Coinstar, Inc. Coin sensing apparatus and method
US6056104A (en) * 1996-06-28 2000-05-02 Coinstar, Inc. Coin sensing apparatus and method
US6520308B1 (en) 1996-06-28 2003-02-18 Coinstar, Inc. Coin discrimination apparatus and method
US5988348A (en) 1996-06-28 1999-11-23 Coinstar, Inc. Coin discrimination apparatus and method
AU2003900636A0 (en) * 2003-02-13 2003-02-27 Microsystem Controls Pty Ltd Identification of coins, including magnetic characteristics
US9036890B2 (en) 2012-06-05 2015-05-19 Outerwall Inc. Optical coin discrimination systems and methods for use with consumer-operated kiosks and the like
CN103971457A (en) * 2013-01-24 2014-08-06 鸿富锦精密工业(武汉)有限公司 Commodity dropping detecting system
US8967361B2 (en) 2013-02-27 2015-03-03 Outerwall Inc. Coin counting and sorting machines
US9022841B2 (en) 2013-05-08 2015-05-05 Outerwall Inc. Coin counting and/or sorting machines and associated systems and methods
US9443367B2 (en) 2014-01-17 2016-09-13 Outerwall Inc. Digital image coin discrimination for use with consumer-operated kiosks and the like

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2041532B (en) * 1979-01-31 1983-05-11 Plessey Co Ltd Metal detector
GB2135492B (en) * 1983-02-09 1986-06-04 Chapman Cash Processing Limite Coin recognition
GB8303587D0 (en) * 1983-02-09 1983-03-16 Chapman Cash Processing Ltd Coin discriminating apparatus

Also Published As

Publication number Publication date
DE3876708T2 (en) 1993-04-22
EP0300781B1 (en) 1992-12-16
EP0300781A2 (en) 1989-01-25
ATE83571T1 (en) 1993-01-15
EP0300781A3 (en) 1990-01-31
DE3876708D1 (en) 1993-01-28

Similar Documents

Publication Publication Date Title
EP0300781A3 (en) Coin discriminator
DE3477703D1 (en) Coin discriminating apparatus
NO871218L (en) ELECTROMAGNETIC TESTING OF WIRE REP.
JPS6426293A (en) Coin detection means
HK1007023A1 (en) Coin testing apparatus
GB8810622D0 (en) Ferromagnetic eddy current probe
ATE16532T1 (en) DEVICE FOR NON-DESTRUCTIVE MEASUREMENT OF THE HARDENING DEPTH OF MATERIALS.
JPS5483890A (en) Method of selectively detecting multiple quantum transition in nuclear magnetic resonance
GB8510181D0 (en) Moving coin validation
FR2489055B1 (en)
ES8105099A1 (en) Method and apparatus for the identification of coins and equivalent
Martin Permanent magnet characterization measurements
GUPTA et al. On detecting influential data and selecting regression variables
NZ218263A (en) Magnetic coin validation
SU996927A1 (en) Device for checking steel article mechanical properties
SU1226262A2 (en) Pulse magnetic analyser
ATE126376T1 (en) DEVICE FOR TESTING COINS OR SIMILAR METAL DISCS.
Sandovskii Possibility of Sorting Steel Bar According to Grade, Based on Measurement of Two Parameters by Eddy-Current Method
JPS6476416A (en) Polarity discrimination circuit for magnetic tape head
Gorkunov et al. Inspection of the Quality of Tempered Articles of Medium-Carbon(Low-Alloy) Steel With Stick-Type Electromagnets
Zuravskii et al. Tensile Stress Effect on the Precision of Measurements in Nondestructive Control of Magnetic Properties
Spencer ²³Na quadrupole relaxation measurements by computer-controlled nuclear magnetic double resonance spectrometer
Westwood Assessing Condition of Hidden Elements
JPS5667872A (en) Toner concentration detector
JPS56137217A (en) Electromagnetic induction-type liquid level gage