DE3527442C2 - - Google Patents
Info
- Publication number
- DE3527442C2 DE3527442C2 DE3527442A DE3527442A DE3527442C2 DE 3527442 C2 DE3527442 C2 DE 3527442C2 DE 3527442 A DE3527442 A DE 3527442A DE 3527442 A DE3527442 A DE 3527442A DE 3527442 C2 DE3527442 C2 DE 3527442C2
- Authority
- DE
- Germany
- Prior art keywords
- coil
- quality
- damping
- ferromagnetic
- core
- 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
- 239000004020 conductor Substances 0.000 claims description 11
- 230000001939 inductive effect Effects 0.000 claims description 7
- 229910000859 α-Fe Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 description 33
- 238000013016 damping Methods 0.000 description 23
- 230000005294 ferromagnetic effect Effects 0.000 description 11
- 239000003302 ferromagnetic material Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000013459 approach Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 230000005291 magnetic effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- -1 B. Al Substances 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- H01F21/10—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by means of a movable shield
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Coils Or Transformers For Communication (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853527442 DE3527442A1 (de) | 1985-07-31 | 1985-07-31 | Verfahren und vorrichtung zur (gamma)nderung des guetefaktors einer spule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853527442 DE3527442A1 (de) | 1985-07-31 | 1985-07-31 | Verfahren und vorrichtung zur (gamma)nderung des guetefaktors einer spule |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3527442A1 DE3527442A1 (de) | 1987-02-12 |
| DE3527442C2 true DE3527442C2 (enrdf_load_stackoverflow) | 1989-07-13 |
Family
ID=6277292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19853527442 Granted DE3527442A1 (de) | 1985-07-31 | 1985-07-31 | Verfahren und vorrichtung zur (gamma)nderung des guetefaktors einer spule |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3527442A1 (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19516934C1 (de) * | 1995-05-09 | 1996-08-29 | Pepperl & Fuchs | Induktiver Näherungsschalter mit Spule mit metallischer aktiver Fläche |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3711589A1 (de) * | 1987-04-06 | 1988-10-27 | Kueppersbusch | Kochgeraet |
| DE3714433C2 (de) * | 1987-04-30 | 1994-04-28 | Turck Werner Kg | Induktiver Näherungsschalter |
| DE3919916A1 (de) * | 1989-06-19 | 1990-12-20 | Pepperl & Fuchs | Induktiver naeherungsschalter |
| EP0677887A1 (en) * | 1994-04-13 | 1995-10-18 | Texas Instruments Incorporated | Built-in chip transponder with antenna circuit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE941201C (de) * | 1951-06-13 | 1956-04-05 | Siemens Ag | Hochfrequenzspule mit veraenderbarer Induktivitaet fuer Ultrakurzwellenzwecke |
| DE1302191B (enrdf_load_stackoverflow) * | 1960-11-24 | 1971-01-14 |
-
1985
- 1985-07-31 DE DE19853527442 patent/DE3527442A1/de active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19516934C1 (de) * | 1995-05-09 | 1996-08-29 | Pepperl & Fuchs | Induktiver Näherungsschalter mit Spule mit metallischer aktiver Fläche |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3527442A1 (de) | 1987-02-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |