ES479285A1 - Procedimiento y dispositivo de deteccion de la presencia de una veta metalica en un papel. - Google Patents
Procedimiento y dispositivo de deteccion de la presencia de una veta metalica en un papel.Info
- Publication number
- ES479285A1 ES479285A1 ES479285A ES479285A ES479285A1 ES 479285 A1 ES479285 A1 ES 479285A1 ES 479285 A ES479285 A ES 479285A ES 479285 A ES479285 A ES 479285A ES 479285 A1 ES479285 A1 ES 479285A1
- Authority
- ES
- Spain
- Prior art keywords
- paper
- circuit
- resonance
- detection head
- metal strand
- 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
- 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
- G01V3/101—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
- G01V3/102—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil by measuring amplitude
-
- 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
- G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint
Abstract
Procedimiento de detección de la presencia de una veta metálica en un papel, caracterizado porque se hace desfilar el papel delante de una cabeza de detección que comprende un circuito resonante alimentado por una corriente de alta frecuencia próxima de la frecuencia de resonancia del circuito, de tal modo que la veta sea al menos aproximadamente paralela al eje de la bobina del circuito, se desmodula la tensión de alta frecuencia modulada por la variación de la corriente en el circuito resonante durante el paso de la veta y se aplica , tras el filtrado, esta señal desmodulada a un circuito trigger para obtener una señal digital de la que se controla la expedición en tiempo útil por medio de una ventana de lectura cuya apertura es gobernada por los medios de accionamiento del papel
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH359778A CH624220A5 (es) | 1978-04-04 | 1978-04-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES479285A1 true ES479285A1 (es) | 1979-12-16 |
Family
ID=4259412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES479285A Expired ES479285A1 (es) | 1978-04-04 | 1979-04-04 | Procedimiento y dispositivo de deteccion de la presencia de una veta metalica en un papel. |
Country Status (8)
Country | Link |
---|---|
US (1) | US4473799A (es) |
JP (1) | JPS54136900A (es) |
CH (1) | CH624220A5 (es) |
DE (1) | DE2912712A1 (es) |
ES (1) | ES479285A1 (es) |
FR (1) | FR2422210B1 (es) |
GB (1) | GB2017996B (es) |
IT (1) | IT1112368B (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2076105A2 (es) * | 1993-08-23 | 1995-10-16 | Nacional Moneda Timbre | Detector de presencia de materiales amorfos en documentos |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4408156A (en) | 1979-05-01 | 1983-10-04 | N. V. Bekaert S.A. | Sheet articles of non-conductive material marked for identification purposes, and method and apparatus for identifying such articles |
JPS6226726Y2 (es) * | 1981-01-09 | 1987-07-09 | ||
DE3273668D1 (en) * | 1981-01-12 | 1986-11-13 | Toshiba Kk | A device for detecting a metal strip embedded in paper |
JPS57117081A (en) * | 1981-01-12 | 1982-07-21 | Tokyo Shibaura Electric Co | Detector for metal pieces existing in paper sheets |
US4518919A (en) * | 1981-01-16 | 1985-05-21 | Tokyo Shibaura Denki Kabushiki Kaisha | Detecting device for detecting a magnetic strip embedded in a sheet |
DE3267960D1 (en) * | 1981-03-06 | 1986-01-30 | Sodeco Compteurs De Geneve | Coin testing apparatus |
FR2566137B2 (fr) * | 1982-03-05 | 1986-10-10 | Petercem Sa | Dispositif de detection d'une cible magnetique dans une zone de proximite definie |
FR2566136B2 (fr) * | 1982-03-05 | 1987-05-15 | Petercem Sa | Dispositif de detection d'une cible magnetique dans une zone de proximite definie |
US4584529A (en) * | 1983-06-02 | 1986-04-22 | Bill Checker Co., Ltd. | Method and apparatus for discriminating between genuine and suspect paper money |
CH662194A5 (de) * | 1984-02-14 | 1987-09-15 | Sodeco Compteurs De Geneve | Verfahren und einrichtung zum pruefen der echtheit von dokumenten. |
US4611127A (en) * | 1984-09-20 | 1986-09-09 | Telectronics N.V. | Electronic sensor for static magnetic field |
US4731578A (en) * | 1985-05-02 | 1988-03-15 | Aeroquip Corporation | Electrical sensing system for measuring ferrous particles within a fluid |
US4878019A (en) * | 1985-05-02 | 1989-10-31 | Aeroquip Corporation | Electrical sensing system for measuring ferrous particles within a fluid with temperature compensation circuit |
JPS62299755A (ja) * | 1986-06-20 | 1987-12-26 | Nitto Gurasufuaibaa Kogyo Kk | ガラス繊維中の導電性物質の検出方法及び検出装置 |
CA1295189C (en) * | 1986-08-28 | 1992-02-04 | Viceroy Homes Limited | Sliding door |
AT390843B (de) * | 1986-11-12 | 1990-07-10 | Boehler Gmbh | Verfahren und messeinrichtung zur bestimmung des gehaltes an magnetisierbarer substanz in einer probe |
US4883264A (en) * | 1987-11-02 | 1989-11-28 | Laurel Bank Machines Co., Ltd. | Bill disbursing system |
US5144231A (en) * | 1988-09-30 | 1992-09-01 | Jeffrey Tenenbaum | Eddy current detector for detecting an object with offset compensation |
US5155643A (en) * | 1990-10-30 | 1992-10-13 | Mars Incorporated | Unshielded horizontal magnetoresistive head and method of fabricating same |
DE4103832A1 (de) * | 1991-02-08 | 1992-08-13 | Telefunken Systemtechnik | Pruefanordnung |
US5378885A (en) * | 1991-10-29 | 1995-01-03 | Mars Incorporated | Unshielded magnetoresistive head with multiple pairs of sensing elements |
US5279403A (en) * | 1992-07-23 | 1994-01-18 | Crane & Company, Inc. | Microwave security thread detector |
US5358088A (en) * | 1992-11-25 | 1994-10-25 | Mars Incorporated | Horizontal magnetoresistive head apparatus and method for detecting magnetic data |
DE4333667A1 (de) * | 1993-10-02 | 1995-04-06 | Stephan Dr Handy | Verfahren zum Erkennen von Falschgeld und Prüfgerät zur Durchführung des Verfahrens |
FR2716979B1 (fr) * | 1994-03-04 | 1996-03-29 | Telemecanique | Détecteur de proximité inductif. |
DE4415592A1 (de) * | 1994-04-28 | 1995-11-02 | Whd Warenhandels Und Dienstlei | Verfahren und Anordnung zur Prüfung von Metallfäden, -bändern und -partikeln |
DE4429689C2 (de) | 1994-08-22 | 2003-06-26 | Whd Elektron Prueftech Gmbh | Prüfanordnung und Verfahren zur Prüfung von Dokumenten in Bearbeitungsmaschinen |
RU2155989C2 (ru) * | 1995-03-30 | 2000-09-10 | ВХД Электронише Прюфтехник ГмбХ | Способ и устройства для контроля защищенных от подделки документов |
DE19512921A1 (de) * | 1995-03-30 | 1996-10-02 | Lfp Elektronische Spezialsiche | Einrichtung zur Prüfung von Sicherheitsdokumenten |
DE19512926A1 (de) * | 1995-03-30 | 1996-10-02 | Lfp Elektronische Spezialsiche | Verfahren zur Prüfung von Sicherheitsdokumenten |
GB2299697A (en) * | 1995-04-05 | 1996-10-09 | Teknote Limited | Bank note validator |
DE19518228C2 (de) * | 1995-05-12 | 2001-08-09 | Whd Elektron Prueftech Gmbh | Verfahren, Anordnungen, Vorrichtungen und Prüfzonen von zu prüfenden Objekten zur Echtheitsprüfung sowie Anwendung derselben |
CN103592688A (zh) * | 2013-11-12 | 2014-02-19 | 周芸 | 安检门金属物检测模块 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB595764A (en) * | 1943-12-23 | 1947-12-16 | Laszlo Namenyi Katz | Improvements in or relating to electric or magnetic apparatus actuated by the passage of articles, such as bank-notes, through it |
US2587631A (en) * | 1948-05-21 | 1952-03-04 | American Can Co | Apparatus for measuring and detecting magnetic objects |
FR1274374A (fr) * | 1957-01-30 | 1961-10-27 | Perfectionnements apportés aux appareils agissant successivement sur chacune des feuilles d'une pile | |
DE1302191B (es) * | 1960-11-24 | 1971-01-14 | ||
GB981435A (en) * | 1962-02-14 | 1965-01-27 | Ferguson Radio Corp | Apparatus for detecting faults in a web of paper |
GB1092362A (en) * | 1963-05-23 | 1967-11-22 | David Theodore Nelson Williams | Improvements in detectors for electrically conductive or magnetic particles |
US3319160A (en) * | 1963-12-05 | 1967-05-09 | American Mach & Foundry | Fail indication circuit for magnetic inspection system |
CH475610A (de) * | 1967-06-15 | 1969-07-15 | Sodeco Compteurs De Geneve | Vorrichtung zur automatischen Echtheitsprüfung von Banknoten |
US3602643A (en) * | 1969-01-21 | 1971-08-31 | Heller & Co Walter E | Scan control apparatus for validation device |
AT301226B (de) * | 1971-02-25 | 1972-08-25 | Gao Ges Automation Org | Einrichtung zur Prüfung von Wertpapieren |
AT305670B (de) * | 1971-07-13 | 1973-03-12 | Gao Ges Automation Org | Einrichtung zur Prüfung der Echtheit von Banknoten od.dgl. |
CH535134A (de) * | 1971-09-01 | 1973-03-31 | Landis & Gyr Ag | Verfahren zur Verhinderung erfolgreicher Fälschungen von Wertscheinen |
FR2188879A5 (es) * | 1972-06-12 | 1974-01-18 | De La Rue Giori Sa | |
US3901368A (en) * | 1974-03-11 | 1975-08-26 | Lance T Klinger | Coin acceptor/rejector |
US3966047A (en) * | 1974-11-27 | 1976-06-29 | Rowe International Inc. | Paper currency acceptor |
US4013894A (en) * | 1975-05-27 | 1977-03-22 | Addressograph Multigraph Corporation | Secure property document and system |
FR2320663A1 (fr) * | 1975-08-06 | 1977-03-04 | Itt Produits Ind | Detecteur de proximite d'objets de toute nature |
DE2549093A1 (de) * | 1975-11-03 | 1977-05-05 | Braum Ludwig | Verfahren und schaltungsanordnung zur pruefung von muenzen o.dgl. |
DE2619457A1 (de) * | 1976-05-03 | 1977-11-24 | Woerl Geb Mueller Waltraud | Verfahren und vorrichtung zum pruefen von geldscheinen |
US4130792A (en) * | 1977-09-30 | 1978-12-19 | Sullivan John W | Metal detector with feedback tuning |
-
1978
- 1978-04-04 CH CH359778A patent/CH624220A5/fr not_active IP Right Cessation
-
1979
- 1979-03-26 GB GB7910452A patent/GB2017996B/en not_active Expired
- 1979-03-30 US US06/025,603 patent/US4473799A/en not_active Expired - Lifetime
- 1979-03-30 DE DE19792912712 patent/DE2912712A1/de active Granted
- 1979-03-30 FR FR7908872A patent/FR2422210B1/fr not_active Expired
- 1979-04-03 IT IT21555/79A patent/IT1112368B/it active
- 1979-04-04 ES ES479285A patent/ES479285A1/es not_active Expired
- 1979-04-04 JP JP3991479A patent/JPS54136900A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2076105A2 (es) * | 1993-08-23 | 1995-10-16 | Nacional Moneda Timbre | Detector de presencia de materiales amorfos en documentos |
Also Published As
Publication number | Publication date |
---|---|
US4473799A (en) | 1984-09-25 |
IT7921555A0 (it) | 1979-04-03 |
IT1112368B (it) | 1986-01-13 |
JPS54136900A (en) | 1979-10-24 |
DE2912712A1 (de) | 1979-10-11 |
GB2017996B (en) | 1982-04-28 |
CH624220A5 (es) | 1981-07-15 |
FR2422210B1 (fr) | 1986-02-07 |
FR2422210A1 (fr) | 1979-11-02 |
GB2017996A (en) | 1979-10-10 |
DE2912712C2 (es) | 1987-08-27 |
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