CH501300A - Dauermagnet, insbesondere für elektroakustische Wandler - Google Patents

Dauermagnet, insbesondere für elektroakustische Wandler

Info

Publication number
CH501300A
CH501300A CH212969A CH212969A CH501300A CH 501300 A CH501300 A CH 501300A CH 212969 A CH212969 A CH 212969A CH 212969 A CH212969 A CH 212969A CH 501300 A CH501300 A CH 501300A
Authority
CH
Switzerland
Prior art keywords
permanent magnet
electroacoustic transducers
electroacoustic
transducers
permanent
Prior art date
Application number
CH212969A
Other languages
English (en)
Inventor
Alex Parnell Robert
Original Assignee
Alex Parnell Robert
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 Alex Parnell Robert filed Critical Alex Parnell Robert
Publication of CH501300A publication Critical patent/CH501300A/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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; DEAF-AID SETS; 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)
CH212969A 1968-02-12 1969-02-12 Dauermagnet, insbesondere für elektroakustische Wandler CH501300A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70462468A 1968-02-12 1968-02-12

Publications (1)

Publication Number Publication Date
CH501300A true CH501300A (de) 1970-12-31

Family

ID=24830257

Family Applications (1)

Application Number Title Priority Date Filing Date
CH212969A CH501300A (de) 1968-02-12 1969-02-12 Dauermagnet, insbesondere für elektroakustische Wandler

Country Status (7)

Country Link
US (1) US3478289A (de)
CH (1) CH501300A (de)
DE (1) DE1905973A1 (de)
FR (1) FR2001766A1 (de)
GB (1) GB1203745A (de)
NL (1) NL6902163A (de)
SE (1) SE351963B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834304A (en) * 1970-05-21 1974-09-10 Potter Instrument Co Inc Helical bar printer and hammer therefor
JPS5433041Y2 (de) * 1977-12-08 1979-10-12
US5367277A (en) * 1991-07-25 1994-11-22 Nippon Steel Corporation Electromagnetic energy converter
NO975614A (no) * 1997-12-04 1999-04-26 Seas Fabrikker As Permanentmagnetmontasje
US20060251286A1 (en) * 2005-04-13 2006-11-09 Stiles Enrique M Multi-gap air return motor for electromagnetic transducer
US20070160257A1 (en) * 2005-04-13 2007-07-12 Stiles Enrique M Axial magnet assisted radial magnet air return motor for electromagnetic transducer
GB2492360A (en) * 2011-06-29 2013-01-02 Gp Acoustics Internat Ltd Permanent rare-earth magnet assembly for a loudspeaker

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE556726A (de) * 1956-04-18
NL111475C (de) * 1958-10-15

Also Published As

Publication number Publication date
SE351963B (de) 1972-12-11
NL6902163A (de) 1969-08-14
GB1203745A (en) 1970-09-03
FR2001766A1 (de) 1969-10-03
US3478289A (en) 1969-11-11
DE1905973A1 (de) 1970-01-02

Similar Documents

Publication Publication Date Title
CH516217A (de) Permanentmagnet
DK134833B (da) Spoleenhed.
DK124766B (da) Lyddæmper for kompressorer.
AT316669B (de) Mikrophon
NL153651B (nl) Membraanafsluiter.
ES198515Y (es) Dispositivo de acoplamiento magnetico.
CH489010A (de) Messwandler
CH501300A (de) Dauermagnet, insbesondere für elektroakustische Wandler
OA03688A (fr) Transducteur acoustique.
NL155162B (nl) Piezo-elektrische microfoon.
DK127893B (da) Forvrængningsmåler.
FR1435808A (fr) Transducteur thermo- ou photo-électrique
CH532826A (de) Luftspaltmagnetanordnung, insbesondere für Nachhallgeräte
CH529429A (de) Gegossener Dauermagnet
DK130805B (da) Magnetosriktiv transducer.
BR6912570D0 (pt) Aparelho reprodutor de som
CH473515A (de) Mikrotelephon
NL162226C (nl) Magneetkop.
NL149661B (nl) Luidsprekend telefoontoestel.
NL150656B (nl) Elektro-akoestische omzetter.
AT315263B (de) Schallempfänger, insbesondere für Reportagen
DK129750B (da) Akustisk anlæg.
BE616611A (fr) Aimant permanent.
ES169099Y (es) Supresor.
ES142887Y (es) Avisador acustico neumatico.

Legal Events

Date Code Title Description
PL Patent ceased