GB1422563A - Measuring the degree of dirt accumulation on an article - Google Patents

Measuring the degree of dirt accumulation on an article

Info

Publication number
GB1422563A
GB1422563A GB1337273A GB1337273A GB1422563A GB 1422563 A GB1422563 A GB 1422563A GB 1337273 A GB1337273 A GB 1337273A GB 1337273 A GB1337273 A GB 1337273A GB 1422563 A GB1422563 A GB 1422563A
Authority
GB
United Kingdom
Prior art keywords
bank
note
article
threshold
circuits
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
GB1337273A
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.)
GAO Gesellschaft fuer Automation und Organisation mbH
Original Assignee
GAO Gesellschaft fuer Automation und Organisation mbH
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 GAO Gesellschaft fuer Automation und Organisation mbH filed Critical GAO Gesellschaft fuer Automation und Organisation mbH
Publication of GB1422563A publication Critical patent/GB1422563A/en
Expired 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
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/181—Testing mechanical properties or condition, e.g. wear or tear
    • G07D7/187—Detecting defacement or contamination, e.g. dirt
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • G07D7/121—Apparatus characterised by sensor details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Image Processing (AREA)

Abstract

1422563 Photo-electric measuring appartus GAO GES FUR AUTOMATION UND ORGANISATION mbH 20 March 1973 [21 March 1972] 13372/73 Heading G1A Dirt accumulation on an article, e.g. a bank-note is measured by a scanning device arranged to scan at least one margin of the article, scanning signals from the device being fed in parallel to at least two threshold circuits 13À1-13À3, the outputs of the circuits being applied to an integrator 15, and the output of the integrator being fed to a further threshold circuit 16. As shown, a bank-note 7 is moved relative to a scanning device which comprises a light scource 1 and a photo-electric cell 6 which receives light reflected from the bank-note via a lens 3 and two diaphragms 4, 5. The output of the cell 6 is amplified at 10 and has its D.C. component eliminated by a device 11 to which is applied a compensating D.C. signal representative of the mean brightness of the bank-note. This D.C. signal is derived from a device 12 during the first part of the scan. The outputs of the threshold circuits are weighted by devices 14À1-14À3 which include resistors. The threshold devices have different levels, the weighting factors being proportional to the levels.
GB1337273A 1972-03-21 1973-03-20 Measuring the degree of dirt accumulation on an article Expired GB1422563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT236972A AT311097B (en) 1972-03-21 1972-03-21 Method for measuring the degree of soiling of banknotes or the like.

Publications (1)

Publication Number Publication Date
GB1422563A true GB1422563A (en) 1976-01-28

Family

ID=3533090

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1337273A Expired GB1422563A (en) 1972-03-21 1973-03-20 Measuring the degree of dirt accumulation on an article

Country Status (7)

Country Link
JP (1) JPS4915496A (en)
AT (1) AT311097B (en)
DE (1) DE2310882C3 (en)
FR (1) FR2186138A5 (en)
GB (1) GB1422563A (en)
IT (1) IT1003074B (en)
NL (1) NL7303119A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132756A (en) * 1982-12-17 1984-07-11 Laurel Bank Machine Co Paper sheet discriminating apparatus
GB2164442A (en) * 1984-09-11 1986-03-19 De La Rue Syst Sensing the condition of a document

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT349248B (en) * 1976-11-29 1979-03-26 Gao Ges Automation Org PROCEDURE FOR DYNAMIC MEASUREMENT OF THE DEGREE OF CONTAMINATION OF BANKNOTES AND TESTING DEVICE FOR PERFORMING THIS PROCESS
US4303832A (en) * 1978-12-18 1981-12-01 Gretag Aktiengesellschaft Process for assessing the quality of a printed product
US4311914A (en) * 1978-12-18 1982-01-19 Gretag Aktiengesellschaft Process for assessing the quality of a printed product
DE2932962C2 (en) * 1979-08-14 1982-04-08 GAO Gesellschaft für Automation und Organisation mbH, 8000 München Method for checking the degree of soiling of recording media, in particular bank notes
US4255057A (en) * 1979-10-04 1981-03-10 The Perkin-Elmer Corporation Method for determining quality of U.S. currency
DE2945651C2 (en) * 1979-11-12 1984-10-11 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Device for testing a sheet-like object for authenticity
JPS58125191A (en) * 1982-01-19 1983-07-26 グローリー工業株式会社 Detection of wear for sheet paper
JPS60101690A (en) * 1983-11-08 1985-06-05 グローリー工業株式会社 Coin damage discriminator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132756A (en) * 1982-12-17 1984-07-11 Laurel Bank Machine Co Paper sheet discriminating apparatus
GB2164442A (en) * 1984-09-11 1986-03-19 De La Rue Syst Sensing the condition of a document
US4710963A (en) * 1984-09-11 1987-12-01 De La Rue Systems Ltd. Apparatus for sensing the condition of a document

Also Published As

Publication number Publication date
FR2186138A5 (en) 1974-01-04
AT311097B (en) 1973-10-25
DE2310882A1 (en) 1973-10-04
JPS4915496A (en) 1974-02-09
DE2310882C3 (en) 1980-09-18
NL7303119A (en) 1973-09-25
DE2310882B2 (en) 1976-08-19
IT1003074B (en) 1976-06-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee