GB738146A - Improvements in or relating to high frequency variable inductors - Google Patents
Improvements in or relating to high frequency variable inductorsInfo
- Publication number
- GB738146A GB738146A GB3350453A GB3350453A GB738146A GB 738146 A GB738146 A GB 738146A GB 3350453 A GB3350453 A GB 3350453A GB 3350453 A GB3350453 A GB 3350453A GB 738146 A GB738146 A GB 738146A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- attached
- magnetic
- inductance
- shaft
- 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
- H01F21/06—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole
- H01F21/065—Measures for obtaining a desired relation between the position of the core and the inductance
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
738,146. Inductors. COLLINS RADIO CO. Dec. 2, 1953, No. 33504/53. Class 38 (2). A variable inductor comprises a coil 17, the inductance of which is varied by a magnetic core member 18 which moves internally of the coil and by a magnetic member 33 which moves externally of the coil in such a manner that the variable inductance characteristic of the coil versus the movement of the shaft 13 may have any desired law. The powdered magnetic core 18 is moved relative to the coil 17 by means of the screw-threaded shaft 13 there being attached to the core to move therewith a bifurcated member 24 having rollers 28 thereon to guide the member 24 along a guide rail 22. Attached to the member 24 is a lever arm 31 spring-biased so as always to tend to pivot away from the coil 17. The lever arm carries a piece of magnetic material 33 and the end of the arm engages a cam surface 23 attached to the former of the coil 17 so that as the magnetic member moves along the coil it also varies its distance therefrom, thus enabling any desired law of shaft movement versus variation in coil inductance to be obtained. The law itself may be varied by a suitable choice of the shape of the cam 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3350453A GB738146A (en) | 1953-12-02 | 1953-12-02 | Improvements in or relating to high frequency variable inductors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3350453A GB738146A (en) | 1953-12-02 | 1953-12-02 | Improvements in or relating to high frequency variable inductors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB738146A true GB738146A (en) | 1955-10-05 |
Family
ID=10353825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3350453A Expired GB738146A (en) | 1953-12-02 | 1953-12-02 | Improvements in or relating to high frequency variable inductors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB738146A (en) |
-
1953
- 1953-12-02 GB GB3350453A patent/GB738146A/en not_active Expired
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