CA2433382A1 - Capacitance sensor for coin evaluation - Google Patents

Capacitance sensor for coin evaluation Download PDF

Info

Publication number
CA2433382A1
CA2433382A1 CA002433382A CA2433382A CA2433382A1 CA 2433382 A1 CA2433382 A1 CA 2433382A1 CA 002433382 A CA002433382 A CA 002433382A CA 2433382 A CA2433382 A CA 2433382A CA 2433382 A1 CA2433382 A1 CA 2433382A1
Authority
CA
Canada
Prior art keywords
coin
diameter
capacitance
capacitance sensor
evaluation
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
CA002433382A
Other languages
French (fr)
Other versions
CA2433382C (en
Inventor
Vladymir Barchuk
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.)
Crane Canada Co
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2433382A1 publication Critical patent/CA2433382A1/en
Application granted granted Critical
Publication of CA2433382C publication Critical patent/CA2433382C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G07D5/02—Testing the dimensions, e.g. thickness, diameter; Testing the deformation
    • 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
    • G07D5/10—Testing the rim, e.g. the milling of the rim

Landscapes

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

Abstract

A capacitance sensor measures a coin to determine geometrical parameters thereof and to allow assessment of different geometrical parameters of a coin which influence the measured capacitance. In a preferred arrangement, a mechanical arrangement alters the capacitance between two electrodes as a function of the diameter of the coin. This assessment is used in combination with a further measured capacitance which is a function of coin diameter, coin thickness and surface relief of the coin. The initial evaluation of diameter is useful in determining the separate influences of coin thickness and surface relief. The invention is also directed to the method of coin evaluation.
CA002433382A 2000-01-28 2000-01-28 Capacitance sensor for coin evaluation Expired - Fee Related CA2433382C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2000/000072 WO2001055974A1 (en) 2000-01-28 2000-01-28 Capacitance sensor for coin evaluation

Publications (2)

Publication Number Publication Date
CA2433382A1 true CA2433382A1 (en) 2001-08-02
CA2433382C CA2433382C (en) 2009-03-24

Family

ID=4143037

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002433382A Expired - Fee Related CA2433382C (en) 2000-01-28 2000-01-28 Capacitance sensor for coin evaluation

Country Status (3)

Country Link
AU (1) AU2000222731A1 (en)
CA (1) CA2433382C (en)
WO (1) WO2001055974A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR761634A (en) * 1932-09-15 1934-03-23 Carburetor for internal combustion engine with external heat source ignition
DE1809738A1 (en) * 1968-11-19 1970-06-18 Hermann Janus Electronic capacitive coin checker
CH655810A5 (en) * 1982-03-04 1986-05-15 Autelca Ag Coin validator that test a variety coin thicknesses AND / OR coin diameters and / OR coin alloys.
JPH0786939B2 (en) * 1988-05-27 1995-09-20 株式会社日本コンラックス Coin identification device
GB8828802D0 (en) * 1988-12-09 1989-01-18 Rathdown Ind Ltd Coin discriminator
DE69311812T2 (en) * 1992-10-14 1997-10-02 Tetrel Ltd COIN CHECKER

Also Published As

Publication number Publication date
AU2000222731A1 (en) 2001-08-07
WO2001055974A1 (en) 2001-08-02
CA2433382C (en) 2009-03-24

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Legal Events

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EEER Examination request
MKLA Lapsed

Effective date: 20140128