CH415753A - Dispositif transducteur électromagnétique - Google Patents
Dispositif transducteur électromagnétiqueInfo
- Publication number
- CH415753A CH415753A CH979964A CH979964A CH415753A CH 415753 A CH415753 A CH 415753A CH 979964 A CH979964 A CH 979964A CH 979964 A CH979964 A CH 979964A CH 415753 A CH415753 A CH 415753A
- Authority
- CH
- Switzerland
- Prior art keywords
- transducer device
- electromagnetic transducer
- electromagnetic
- transducer
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
- G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
- G06K7/083—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive
- G06K7/084—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive sensing magnetic material by relative movement detecting flux changes without altering its magnetised state
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
- G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
- G06K7/087—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors flux-sensitive, e.g. magnetic, detectors
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
Landscapes
- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Measuring Magnetic Variables (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30142063A | 1963-08-12 | 1963-08-12 | |
US30142863A | 1963-08-12 | 1963-08-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH415753A true CH415753A (fr) | 1966-06-30 |
Family
ID=26972356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH979964A CH415753A (fr) | 1963-08-12 | 1964-07-25 | Dispositif transducteur électromagnétique |
Country Status (4)
Country | Link |
---|---|
US (1) | US3423742A (fr) |
CH (1) | CH415753A (fr) |
DE (1) | DE1449828A1 (fr) |
GB (1) | GB1013862A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4245261A (en) * | 1977-11-16 | 1981-01-13 | Allegheny Ludlum Steel Corporation | Digital displacement transducer and method for measurement |
JPS5736407A (en) * | 1980-08-13 | 1982-02-27 | Toshiba Corp | Magnetic reproducer |
IT1170531B (it) * | 1983-10-21 | 1987-06-03 | Ipm Ind Politecnica Meridional | Dispositivo di lettura ed obliterazione di areole a film sottile di materiale ad anisotropia magnetica uniassiale, deposte su di carte di credito o simili |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2785233A (en) * | 1949-10-20 | 1957-03-12 | Bendix Aviat Corp | Method and apparatus for reproducing magnetically recorded signals |
US3016427A (en) * | 1956-08-24 | 1962-01-09 | North American Aviation Inc | Saturable magnetic head |
US3106617A (en) * | 1958-12-24 | 1963-10-08 | Rca Corp | Magnetic recording and reproducing head |
US3295118A (en) * | 1963-05-02 | 1966-12-27 | Jr Robert F Brown | Read-out circuit for flux-gate reproducer heads |
-
1963
- 1963-08-12 US US301420A patent/US3423742A/en not_active Expired - Lifetime
-
1964
- 1964-06-12 GB GB24541/64A patent/GB1013862A/en not_active Expired
- 1964-07-25 CH CH979964A patent/CH415753A/fr unknown
- 1964-08-08 DE DE19641449828 patent/DE1449828A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
US3423742A (en) | 1969-01-21 |
GB1013862A (en) | 1965-12-22 |
DE1449828A1 (de) | 1969-09-18 |
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