GB1372403A - Opticaldetectors for inspecting the mechanical condition of samples - Google Patents
Opticaldetectors for inspecting the mechanical condition of samplesInfo
- Publication number
- GB1372403A GB1372403A GB5249671A GB5249671A GB1372403A GB 1372403 A GB1372403 A GB 1372403A GB 5249671 A GB5249671 A GB 5249671A GB 5249671 A GB5249671 A GB 5249671A GB 1372403 A GB1372403 A GB 1372403A
- Authority
- GB
- United Kingdom
- Prior art keywords
- edge
- bank
- note
- output
- light
- 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
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
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
-
- 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
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
Abstract
1372403 Photo-electric fault detectors TOKYO SHIBAURA ELECTRIC CO Ltd 11 Nov 1971 [11 Nov 1970] 52496/71 Heading G1A Tears or dirt on the edges or other boundary portions of bank-notes or other such sheets bearing a printed pattern are detected photoelectrically by an arrangement which can deal with sheets which have been fed incorrectly and are angled or shifted transversely with respect to the directions of movement. For one edge, light from lamp 17 is projected through and past edge area 12 to a linear array of photo-detectors 18a. These are arranged in the gating circuit of Fig.2, each detector channel of which is provided with a Schmitt circuit 22 whose discrimination level is set so as to produce an output when direct light is incident on the particular detector but not when light transmitted through the sheet is incident. Of three detectors 18a(i-1), 18a(i) and 18a(i+1) are considered, the first receives light wholly, via the bank-note, the second receives light passing the edge region i.e. partially through and partially direct, and the third receives direct light. The combination of inverters 23 and AND gates 24, 25 is such that only AND gate 25(i), corresponding to the edge portion itself produces an output, this being representative of an intensity level corresponding to the condition (torn, dirty &c.) at a certain distance within the edge of the bank-note (in Fig.2, given by the output of amplifier 21(i-1) delivered to one input of AND gate 25(i)). The AND gates 25 are connected to an OR-gate such that whichever is effective (depending on the transverse shift (or misorientation) of the banknote, it has its output passed to a comparison circuit 28 where the edge signal is compared with a reference signal representative of a perfect edge. Depending on the quality the note may be rejected. A duplicate photo-electric system may be provided for the lower edge. It is also possible to monitor other portions of the bank-note as long as a defined boundary exists whereby the levels of the Schmitt triggers may be set.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1970111205U JPS5116319Y1 (en) | 1970-11-11 | 1970-11-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1372403A true GB1372403A (en) | 1974-10-30 |
Family
ID=14555161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5249671A Expired GB1372403A (en) | 1970-11-11 | 1971-11-11 | Opticaldetectors for inspecting the mechanical condition of samples |
Country Status (3)
Country | Link |
---|---|
US (1) | US3718823A (en) |
JP (1) | JPS5116319Y1 (en) |
GB (1) | GB1372403A (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1521263A (en) * | 1974-08-22 | 1978-08-16 | Ti Ltd | Electro-optical position monitoring and control means |
CH609795A5 (en) * | 1976-04-30 | 1979-03-15 | Gretag Ag | |
FR2360133A1 (en) * | 1976-07-30 | 1978-02-24 | Titn | METHOD AND APPARATUS FOR SCANNING A SUPPORT WITH COMPENSATION FOR POSITIONING DEFECTS AND VARIATIONS IN DIMENSIONS |
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 |
US4875776A (en) * | 1979-09-07 | 1989-10-24 | Diffracto Ltd. | Electro-optical inspection |
US4341472A (en) * | 1980-09-15 | 1982-07-27 | Rca Corporation | Method and apparatus for positioning a tapered body |
US4429991A (en) * | 1981-08-17 | 1984-02-07 | The Perkin-Elmer Corporation | Method for detecting physical anomalies of U.S. currency |
DE3139365C2 (en) * | 1981-10-02 | 1993-10-14 | Gao Ges Automation Org | Method for checking the edge area of banknotes and device for carrying out the method |
JPS5882107A (en) * | 1981-10-27 | 1983-05-17 | ドウ・ラ・リユ・システムズ・リミテイド | Method and device for detecting state of sheet |
GB2121533A (en) * | 1982-06-01 | 1983-12-21 | De La Rue Syst | Optical detection system for features on a sheet or web |
US4523850A (en) * | 1982-10-14 | 1985-06-18 | Rca Corporation | System for positioning a body |
JPS59127186A (en) * | 1983-01-08 | 1984-07-21 | ロ−レルバンクマシン株式会社 | Discrimination of paper money |
US4509265A (en) * | 1983-03-21 | 1985-04-09 | General Electric Company | Turbine blade measurement |
JPH0799324B2 (en) * | 1987-07-02 | 1995-10-25 | 富士写真フイルム株式会社 | Bonding inspection device |
EP0435057A1 (en) * | 1989-12-20 | 1991-07-03 | Nitto Denko Corporation | A wafer shape detecting method |
DE19506456C2 (en) * | 1995-02-24 | 1999-07-01 | Boewe Systec Ag | Control device for monitoring the running of two superimposed paper webs in a paper processing machine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS447278Y1 (en) * | 1965-06-14 | 1969-03-18 | ||
JPS4823460B1 (en) * | 1968-11-18 | 1973-07-13 | ||
CH487459A (en) * | 1969-01-24 | 1970-03-15 | Lonza Ag | Photoelectric control device |
-
1970
- 1970-11-11 JP JP1970111205U patent/JPS5116319Y1/ja not_active Expired
-
1971
- 1971-11-08 US US00196293A patent/US3718823A/en not_active Expired - Lifetime
- 1971-11-11 GB GB5249671A patent/GB1372403A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5116319Y1 (en) | 1976-04-28 |
US3718823A (en) | 1973-02-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
PE20 | Patent expired after termination of 20 years |