DE2350593A1 - Magnetkopf mit regelbarer laenge des aufzeichnungsspaltes - Google Patents
Magnetkopf mit regelbarer laenge des aufzeichnungsspaltesInfo
- Publication number
- DE2350593A1 DE2350593A1 DE19732350593 DE2350593A DE2350593A1 DE 2350593 A1 DE2350593 A1 DE 2350593A1 DE 19732350593 DE19732350593 DE 19732350593 DE 2350593 A DE2350593 A DE 2350593A DE 2350593 A1 DE2350593 A1 DE 2350593A1
- Authority
- DE
- Germany
- Prior art keywords
- core
- magnetic head
- gap
- electrostrictive
- transducers
- 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.)
- Pending
Links
- 230000005291 magnetic effect Effects 0.000 title claims description 36
- 239000000463 material Substances 0.000 claims description 14
- 238000005452 bending Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims 1
- 239000011162 core material Substances 0.000 description 31
- 238000000034 method Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical class [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
Classifications
-
- 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
-
- 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
- G11B5/2452—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track where the dimensions of the effective gap are controlled
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7214548A NL7214548A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-10-27 | 1972-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2350593A1 true DE2350593A1 (de) | 1974-05-09 |
Family
ID=19817244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732350593 Pending DE2350593A1 (de) | 1972-10-27 | 1973-10-09 | Magnetkopf mit regelbarer laenge des aufzeichnungsspaltes |
Country Status (6)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431047A (en) * | 1979-09-27 | 1984-02-14 | Ube Industries, Ltd. | Gas-venting arrangement incorporated with a mold |
| US4398229A (en) * | 1981-08-03 | 1983-08-09 | Eastman Kodak Company | Magnetic head with versatile gap |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE844676C (de) * | 1949-10-28 | 1952-07-24 | Eberhard Vollmer | Magnetischer Tonkopf |
| US2822428A (en) * | 1954-07-13 | 1958-02-04 | Electro Voice | Variable gap magnetic tape head |
| US2928906A (en) * | 1954-10-18 | 1960-03-15 | Monroe Calculating Machine | Magnetic transducing head with integral adjustment means |
| US3043919A (en) * | 1958-08-19 | 1962-07-10 | Avco Corp | Electromagnetic transducer head housing and assembly |
| US3706861A (en) * | 1969-09-18 | 1972-12-19 | Rca Corp | Apparatus for mounting and spacing a signal transducer with respect to a recording medium |
-
1972
- 1972-10-27 NL NL7214548A patent/NL7214548A/xx unknown
-
1973
- 1973-10-09 US US00404357A patent/US3855618A/en not_active Expired - Lifetime
- 1973-10-09 DE DE19732350593 patent/DE2350593A1/de active Pending
- 1973-10-24 GB GB4946073A patent/GB1443807A/en not_active Expired
- 1973-10-25 FR FR7338068A patent/FR2204843B1/fr not_active Expired
- 1973-10-27 JP JP12042673A patent/JPS5325647B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1443807A (en) | 1976-07-28 |
| JPS4977617A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-07-26 |
| JPS5325647B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-07-28 |
| FR2204843B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-04-27 |
| US3855618A (en) | 1974-12-17 |
| NL7214548A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-05-01 |
| FR2204843A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-05-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |