DE1614302A1 - Magnetsystem,insbesondere fuer Lautsprecher und Mikrophone,mit einem zentralen Kern aus einem axial magnetisierten Dauermagneten,der in einem ferromagnetischen Topf angeordnet ist - Google Patents

Magnetsystem,insbesondere fuer Lautsprecher und Mikrophone,mit einem zentralen Kern aus einem axial magnetisierten Dauermagneten,der in einem ferromagnetischen Topf angeordnet ist

Info

Publication number
DE1614302A1
DE1614302A1 DE19671614302 DE1614302A DE1614302A1 DE 1614302 A1 DE1614302 A1 DE 1614302A1 DE 19671614302 DE19671614302 DE 19671614302 DE 1614302 A DE1614302 A DE 1614302A DE 1614302 A1 DE1614302 A1 DE 1614302A1
Authority
DE
Germany
Prior art keywords
magnet system
air gap
magnet
pot
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.)
Pending
Application number
DE19671614302
Other languages
German (de)
English (en)
Inventor
Wijtze Hofman
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE1614302A1 publication Critical patent/DE1614302A1/de
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
DE19671614302 1967-01-07 1967-11-29 Magnetsystem,insbesondere fuer Lautsprecher und Mikrophone,mit einem zentralen Kern aus einem axial magnetisierten Dauermagneten,der in einem ferromagnetischen Topf angeordnet ist Pending DE1614302A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6700283A NL6700283A (https=) 1967-01-07 1967-01-07

Publications (1)

Publication Number Publication Date
DE1614302A1 true DE1614302A1 (de) 1970-08-13

Family

ID=19798928

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19671614302 Pending DE1614302A1 (de) 1967-01-07 1967-11-29 Magnetsystem,insbesondere fuer Lautsprecher und Mikrophone,mit einem zentralen Kern aus einem axial magnetisierten Dauermagneten,der in einem ferromagnetischen Topf angeordnet ist

Country Status (5)

Country Link
US (1) US3549830A (https=)
DE (1) DE1614302A1 (https=)
FR (1) FR1550699A (https=)
GB (1) GB1159081A (https=)
NL (1) NL6700283A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322021A1 (de) * 1983-01-31 1984-08-09 Ibuki Kogyo Co., Ltd., Osaka Trichterlautsprecher mit vermindertem magnetischen streufluss

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783311A (en) * 1970-12-19 1974-01-01 Coral Audio Corp Magnetic device for use in acoustic apparatus
US3949249A (en) * 1974-08-02 1976-04-06 L. Z. Reece, Et Al Electro-magnetic reciprocating motor
US4187444A (en) * 1978-01-19 1980-02-05 Varian Associates, Inc. Open-circuit magnet structure for cross-field tubes and the like
US4398972A (en) * 1981-05-11 1983-08-16 Bell Telephone Laboratories, Incorporated Ferritic Fe-Ni magnetic alloys
NO169210C (no) * 1989-07-06 1992-05-20 Nha As Elektrodynamisk lydgiver for hoereapparat.
GB0223654D0 (en) * 2002-10-10 2002-11-20 New Transducers Ltd Electromagnetic actuator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322021A1 (de) * 1983-01-31 1984-08-09 Ibuki Kogyo Co., Ltd., Osaka Trichterlautsprecher mit vermindertem magnetischen streufluss

Also Published As

Publication number Publication date
US3549830A (en) 1970-12-22
GB1159081A (en) 1969-07-23
FR1550699A (https=) 1968-12-20
NL6700283A (https=) 1968-07-08

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