ES2127096B1 - Dispositivo magnetoelastico para la identificacion y autentificacion de firmas. - Google Patents
Dispositivo magnetoelastico para la identificacion y autentificacion de firmas.Info
- Publication number
- ES2127096B1 ES2127096B1 ES9600172A ES9600172A ES2127096B1 ES 2127096 B1 ES2127096 B1 ES 2127096B1 ES 9600172 A ES9600172 A ES 9600172A ES 9600172 A ES9600172 A ES 9600172A ES 2127096 B1 ES2127096 B1 ES 2127096B1
- Authority
- ES
- Spain
- Prior art keywords
- authentication
- identification
- secondary winding
- signatures
- magnetostrictive wire
- 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 - Fee Related
Links
Landscapes
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
Dispositivo magnetoelástico para la identificación y autentificación de firmas. El dispositivo magnético para la identificación y autentificación de firmas aprovecha la anisotropía magnetoelástica inducida por tensiones en hilos ferromagnéticos magnetostrictivos para detectar la variación de tensión mecánica sobre el hilo magnetostrictivo. Consta de un hilo magnetostrictivo, un arrollamiento secundario, un circuito excitador y un circuito de tratamiento de la señal recogida en el arrollamiento secundario constituido por un montaje de análisis y, tratamiento de la señal. Cuando se hace circular una corriente por el arrollamiento excitador del hilo magnetostrictivo, se induce un voltaje en el arrollamiento secundario que depende de la tensión sobre el hilo magnetostrictivo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9600172A ES2127096B1 (es) | 1996-01-25 | 1996-01-25 | Dispositivo magnetoelastico para la identificacion y autentificacion de firmas. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9600172A ES2127096B1 (es) | 1996-01-25 | 1996-01-25 | Dispositivo magnetoelastico para la identificacion y autentificacion de firmas. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2127096A1 ES2127096A1 (es) | 1999-04-01 |
| ES2127096B1 true ES2127096B1 (es) | 2000-01-01 |
Family
ID=8293557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES9600172A Expired - Fee Related ES2127096B1 (es) | 1996-01-25 | 1996-01-25 | Dispositivo magnetoelastico para la identificacion y autentificacion de firmas. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2127096B1 (es) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1525259A (en) * | 1975-10-03 | 1978-09-20 | Smith R | Radio transmitter pressure and speed measuring writing pe |
| US4006628A (en) * | 1975-11-19 | 1977-02-08 | Ncr Corporation | Magnetic induction type transducer means |
| US4142175A (en) * | 1978-06-12 | 1979-02-27 | International Business Machines Corporation | Pressure sensing device and transducer arrangement |
| SE439066B (sv) * | 1982-04-19 | 1985-05-28 | Asea Ab | Kraftmetutrustning omfattande en magnetoelastisk kraftgivare |
| US4513437A (en) * | 1982-06-30 | 1985-04-23 | International Business Machines Corporation | Data input pen for Signature Verification |
-
1996
- 1996-01-25 ES ES9600172A patent/ES2127096B1/es not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2127096A1 (es) | 1999-04-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FA2A | Application withdrawn |
Effective date: 19980917 |
|
| EC2A | Search report published |
Date of ref document: 19990401 Kind code of ref document: A1 Effective date: 19990401 |
|
| FD2A | Announcement of lapse in spain |
Effective date: 20160503 |