GB708132A - Improvements in or relating to devices having a magnetic circuit comprising highly-permeable material - Google Patents

Improvements in or relating to devices having a magnetic circuit comprising highly-permeable material

Info

Publication number: GB708132A
Authority: GB; United Kingdom
Prior art keywords: coercivity; group xxxv; oersteds; saturation; sheets
Prior art date: 1951-04-23
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

GB2013751A

Other languages

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.)

Philips Electrical Industries Ltd

Original Assignee

Philips Electrical Industries Ltd

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.)

1951-04-23

Filing date

1951-08-27

Publication date

1954-04-28

1951-08-27 Application filed by Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd

1954-04-28 Publication of GB708132A publication Critical patent/GB708132A/en

Status Expired legal-status Critical Current

Links

239000000463 material Substances 0.000 title abstract 4
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
229910052788 barium Inorganic materials 0.000 abstract 1
DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
229910052791 calcium Inorganic materials 0.000 abstract 1
239000011575 calcium Substances 0.000 abstract 1
239000013078 crystal Substances 0.000 abstract 1
230000008034 disappearance Effects 0.000 abstract 1
230000004907 flux Effects 0.000 abstract 1
230000006698 induction Effects 0.000 abstract 1
229910052742 iron Inorganic materials 0.000 abstract 1
230000002427 irreversible effect Effects 0.000 abstract 1
230000005415 magnetization Effects 0.000 abstract 1
229910052751 metal Inorganic materials 0.000 abstract 1
239000002184 metal Substances 0.000 abstract 1
150000002739 metals Chemical class 0.000 abstract 1
230000035699 permeability Effects 0.000 abstract 1
229910052712 strontium Inorganic materials 0.000 abstract 1
CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 abstract 1

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F9/00—Magnetic amplifiers
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
- G04B39/02—Sealing crystals or glasses
- G04B39/025—Sealing crystals or glasses without special sealing parts
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
- H01F1/0311—Compounds
- H01F1/0313—Oxidic compounds
- H01F1/0315—Ferrites
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
- H01F29/146—Constructional details
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
- H01F38/04—Adaptations of transformers or inductances for specific applications or functions for non-linear operation for frequency changing
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/08—Amplitude modulation by means of variable impedance element
- H03C1/10—Amplitude modulation by means of variable impedance element the element being a current-dependent inductor
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H11/00—Magnetic induction accelerators, e.g. betatrons
- H05H11/02—Air-cored betatrons
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/04—Magnet systems, e.g. undulators, wigglers; Energisation thereof

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Physics & Mathematics (AREA)
Spectroscopy & Molecular Physics (AREA)
Plasma & Fusion (AREA)
Optics & Photonics (AREA)
Electromagnetism (AREA)
Chemical & Material Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
General Physics & Mathematics (AREA)
Nonlinear Science (AREA)
Soft Magnetic Materials (AREA)
Compounds Of Iron (AREA)
Coils Or Transformers For Communication (AREA)

GB2013751A 1951-04-23 1951-08-27 Improvements in or relating to devices having a magnetic circuit comprising highly-permeable material Expired GB708132A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL160734		1951-04-23

Publications (1)

Publication Number	Publication Date
GB708132A true GB708132A (en)	1954-04-28

Family

ID=19750521

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB2013751A Expired GB708132A (en)	1951-04-23	1951-08-27	Improvements in or relating to devices having a magnetic circuit comprising highly-permeable material

Country Status (6)

Country	Link
BE (1)	BE505464A (th)
CH (1)	CH311959A (th)
DE (1)	DE971616C (th)
FR (1)	FR1048081A (th)
GB (1)	GB708132A (th)
NL (1)	NL76967C (th)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1059197B (de) *	1955-06-14	1959-06-11	Licentia Gmbh	Schreibkopf fuer magnetische Aufzeichnungen nach dem Grenzlinien-verschiebungsverfahren
FR2476218A1 (fr) *	1980-02-20	1981-08-21	Ducellier & Cie	Bobine d'allumage pour moteurs a combustion interne
EP0034955B1 (fr) *	1980-02-20	1984-10-24	DUCELLIER & Cie	Bobine d'allumage pour moteurs à combustion interne
FR2481753A2 (fr) *	1980-04-30	1981-11-06	Ducellier & Cie	Bobine d'allumage pour moteurs a combustion interne
FR2531751A1 (fr) *	1982-08-11	1984-02-17	Ducellier & Cie	Bobine d'allumage pour moteur a combustion interne
AU1570488A (en) *	1987-04-13	1988-11-04	Adolf Herbert Astor Zielinski	Method and apparatus for converting energy from the surroundings into electric energy
DE3901792C2 (de) *	1989-01-21	2002-06-20	Lucent Technologies Inc	Ringkern aus Ferrit- oder Eisenpulvermaterial
JP3922251B2 (ja) *	2003-12-17	2007-05-30	三菱電機株式会社	点火コイル

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR802528A (fr) *	1935-03-04	1936-09-07	Philips Nv	Procédé de fabrication d'alliages pour aimants permanents, contenant du nickel, du titane, de l'aluminium et éventuellement du cobalt
CH261748A (de) *	1944-09-28	1949-05-31	Siemens Elektricitaetserzeugni	Durch ein Feld beeinflusstes Widerstandsgebilde.

0
- NL NL76967D patent/NL76967C/xx active
- BE BE505464D patent/BE505464A/xx unknown
1951
- 1951-08-27 CH CH311959D patent/CH311959A/de unknown
- 1951-08-27 GB GB2013751A patent/GB708132A/en not_active Expired
- 1951-09-04 FR FR1048081D patent/FR1048081A/fr not_active Expired
- 1951-09-05 DE DEN4378A patent/DE971616C/de not_active Expired

Also Published As

Publication number	Publication date
FR1048081A (fr)	1953-12-18
BE505464A (th)
CH311959A (de)	1955-12-15
DE971616C (de)	1959-02-26
NL76967C (th)

Publication	Publication Date	Title
US2698917A (en)	1955-01-04	Magnetic circuit comprising a ferromagnetic part having high permeability and a substantially flat, thin permanent magnet
GB747724A (en)	1956-04-11	Improvements in or relating to non-metallic permanent magnets
GB1174366A (en)	1969-12-17	Ferromagnetic Contrast Media.
US3523836A (en)	1970-08-11	Permanent magnet constituted of fine particles of a compound m5r
US2498475A (en)	1950-02-21	Saturable magnetic core
US2844786A (en)	1958-07-22	Magnetic system
GB738973A (en)	1955-10-26	Improvements in or relating to electro-magnetic switches
GB679349A (en)	1952-09-17	Improvements in and relating to magnetically soft mixed ferrite materials
GB708131A (en)	1954-04-28	Improvements in devices comprising a magnetic circuit of highly-permeable material
US2154399A (en)	1939-04-11	Demagnetization
GB1160788A (en)	1969-08-06	Improvements in or relating to the Manufacture of Magnetically Soft Metallic Materials
GB759248A (en)	1956-10-17	Improvements in or relating to methods of manufacturing non-metallic magnetic cores having a substantially rectangular hysteresis loop
GB726328A (en)	1955-03-16	Improvements in or relating to sets of magnetic elements for use, for example, as sets of toy building blocks
SU660101A1 (ru)	1979-04-30	Эластичный магнитный материал
SU119629A1 (ru)	1958-11-30	Способ изготовлени ферритовых сердечников
GB677418A (en)	1952-08-13	Ceramic ferromagnetic body with high maximum permeability
DE897858C (de)	1953-11-26	Anordnung zur Variation von Spuleninduktivitaeten
GB818768A (en)	1959-08-19	Improvements in or relating to transistor circuits
GB661340A (en)	1951-11-21	Improvements in and relating to electric transformers
GB708140A (en)	1954-04-28	Improvements in or relating to inductance coils comprising a ferro-magnetic core of highly-permeable ferrite
GB818293A (en)	1959-08-12	Improvements in or relating to permanent magnets
SU81284A1 (ru)	1948-11-30	Устройство дл быстродействующей дифференциальной защиты с тормозными катушками
GB708121A (en)	1954-04-28	Improvements in or relating to inductance coils comprising a ferro-magnetic core of highly-permeable ferrite
JPS59139613A (ja)	1984-08-10	チヨ−ク用磁心
GB964273A (en)	1964-07-22	Improvements in low flux density ferromagnetic materials