GB739515A - Improvements in or relating to inductors comprising a permanently premagnetized magnet core - Google Patents
Improvements in or relating to inductors comprising a permanently premagnetized magnet coreInfo
- Publication number
- GB739515A GB739515A GB7900/54A GB790054A GB739515A GB 739515 A GB739515 A GB 739515A GB 7900/54 A GB7900/54 A GB 7900/54A GB 790054 A GB790054 A GB 790054A GB 739515 A GB739515 A GB 739515A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- core
- coil
- inductors
- premagnetized
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
- H01F21/08—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by varying the permeability of the core, e.g. by varying magnetic bias
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
739,515. Inductors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 18, 1954 [March 21, 1953], No. 7900/54. Class 38 (2). An inductor has a coil 1, wound on a core 2 of substantially non-conductive ferromagnetic material of high permeability, the core 2 being in the form of a tube in which is accommodated a rod 3 of substantially non- conductive permanent magnetic material thereby producing a premagnetizing field inside the core. As shown in Fig. 1 the rod 3 is relatively fixed and is magnetized at right-angles to the axis of the rod so that the field of the rod is at right angles to that produced by the coil 1. In another embodiment the coil covers a larger axial length of the core and the rod is relatively movable and, in contrast to the rod 3 in Fig. 1, is axially magnetized so that its field is parallel to that produced by the coil.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL739515X | 1953-03-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB739515A true GB739515A (en) | 1955-11-02 |
Family
ID=19820481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7900/54A Expired GB739515A (en) | 1953-03-21 | 1954-03-18 | Improvements in or relating to inductors comprising a permanently premagnetized magnet core |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB739515A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3020503A (en) * | 1956-05-11 | 1962-02-06 | Philips Corp | Inductance coil comprising an annular premagnetisable core |
-
1954
- 1954-03-18 GB GB7900/54A patent/GB739515A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3020503A (en) * | 1956-05-11 | 1962-02-06 | Philips Corp | Inductance coil comprising an annular premagnetisable core |
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