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
Application number
DE3527442A
Other languages
German (de)
English (en)
Other versions
DE3527442A1 (de
Inventor
Manfred 6710 Frankenthal De Sagert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pepperl and Fuchs SE
Original Assignee
Pepperl and Fuchs SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pepperl and Fuchs SE filed Critical Pepperl and Fuchs SE
Priority to DE19853527442 priority Critical patent/DE3527442A1/de
Publication of DE3527442A1 publication Critical patent/DE3527442A1/de
Application granted granted Critical
Publication of DE3527442C2 publication Critical patent/DE3527442C2/de
Granted legal-status Critical Current

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
    • H01F21/10—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)
DE19853527442 1985-07-31 1985-07-31 Verfahren und vorrichtung zur (gamma)nderung des guetefaktors einer spule Granted DE3527442A1 (de)

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 (ja) 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 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 (ja) * 1960-11-24 1971-01-14

Cited By (1)

* Cited by examiner, † Cited by third party
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