ATE131991T1 - Permanentmagnetwandler - Google Patents

Permanentmagnetwandler

Info

Publication number
ATE131991T1
ATE131991T1 AT92301397T AT92301397T ATE131991T1 AT E131991 T1 ATE131991 T1 AT E131991T1 AT 92301397 T AT92301397 T AT 92301397T AT 92301397 T AT92301397 T AT 92301397T AT E131991 T1 ATE131991 T1 AT E131991T1
Authority
AT
Austria
Prior art keywords
core
permanent magnet
shaped
gap
plane
Prior art date
Application number
AT92301397T
Other languages
English (en)
Inventor
Thomas A Froeschle
Ricardo F Carreras
Original Assignee
Bose Corp
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 Bose Corp filed Critical Bose Corp
Application granted granted Critical
Publication of ATE131991T1 publication Critical patent/ATE131991T1/de

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
    • H04R3/00—Circuits for transducers
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Gyroscopes (AREA)
  • Optical Head (AREA)
  • Telephone Function (AREA)
  • Measuring Magnetic Variables (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
AT92301397T 1991-03-11 1992-02-20 Permanentmagnetwandler ATE131991T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/667,461 US5216723A (en) 1991-03-11 1991-03-11 Permanent magnet transducing

Publications (1)

Publication Number Publication Date
ATE131991T1 true ATE131991T1 (de) 1996-01-15

Family

ID=24678317

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92301397T ATE131991T1 (de) 1991-03-11 1992-02-20 Permanentmagnetwandler

Country Status (6)

Country Link
US (1) US5216723A (de)
EP (1) EP0508570B1 (de)
JP (1) JPH0591592A (de)
AT (1) ATE131991T1 (de)
CA (1) CA2061444A1 (de)
DE (1) DE69206863T2 (de)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5991423A (en) * 1998-09-21 1999-11-23 Lucent Technologies Inc. Planar magnetic continuous-tone transducer
US6405599B1 (en) * 2000-01-13 2002-06-18 Bose Corporation Frictionless motor material testing
EP1503821A4 (de) * 2002-02-21 2007-05-30 Design Mentor Inc Flüssigkeitspumpe
US6945541B2 (en) * 2003-01-21 2005-09-20 Bose Corporation Vehicle suspension
US6926288B2 (en) * 2003-06-02 2005-08-09 Bose Corporation Electromagnetic interference filter
US7219684B2 (en) * 2005-01-28 2007-05-22 Rain Bird Corporation Saddle tee and tool for irrigation lines
US8224009B2 (en) * 2007-03-02 2012-07-17 Bose Corporation Audio system with synthesized positive impedance
US7726193B2 (en) * 2007-09-27 2010-06-01 Baker Hughes Incorporated Electromagnetic acoustic transducer with cross-talk elimination
DE102009052129A1 (de) 2009-11-05 2011-05-12 Technische Universität Dresden Wandler mit mindestens einem bewegten Dauermagnet
US8295537B2 (en) 2010-03-31 2012-10-23 Bose Corporation Loudspeaker moment and torque balancing
US8295536B2 (en) 2010-03-31 2012-10-23 Bose Corporation Moving magnet levered loudspeaker
US8610318B2 (en) * 2011-03-29 2013-12-17 Bose Corporation Moving magnet actuator magnet carrier
US20120248898A1 (en) * 2011-03-29 2012-10-04 Richard Tucker Carlmark Moving Magnet Actuator Magnet Carrier
US20120280579A1 (en) * 2011-05-06 2012-11-08 Bose Corporation Linear moving magnet motor cogging force ripple reducing
US9606035B2 (en) 2011-12-21 2017-03-28 Ta Instruments-Waters Llc System for mechanical stimulation and characterization of biologic samples
US9496778B2 (en) 2012-08-22 2016-11-15 Ta Instruments-Waters L.L.C. Electromagnetic motor
US9055370B2 (en) 2012-08-31 2015-06-09 Bose Corporation Vibration-reducing passive radiators
US10028062B2 (en) * 2013-03-15 2018-07-17 Bose Corporation Driving plural armatures with a common stator
EP3008917B1 (de) * 2013-06-14 2021-12-22 Genelec OY Aufhängungselement zur aufhängung der membran eines lautsprechertreibers an dessen lautsprecherkorb sowie treiber und lautsprecher damit
EP2914018B1 (de) * 2014-02-26 2016-11-09 Sonion Nederland B.V. Lautsprecher, verankerung und verfahren
US9601969B2 (en) 2014-03-07 2017-03-21 Bose Corporation Inhibiting rocking of loads driven by plural levers
US9258648B2 (en) 2014-03-07 2016-02-09 Bose Corporation Levered loudspeakers
US9357279B2 (en) 2014-03-07 2016-05-31 Bose Corporation Elastomeric torsion bushings for levered loudspeakers
US9497549B2 (en) 2014-03-07 2016-11-15 Bose Corporation Levered loudspeakers
US9130445B1 (en) * 2014-08-04 2015-09-08 David Micah Katz Electromechanical transducer with non-circular voice coil
CN204741558U (zh) * 2015-06-23 2015-11-04 瑞声光电科技(常州)有限公司 扬声器
CN204733374U (zh) * 2015-06-23 2015-10-28 瑞声光电科技(常州)有限公司 扬声器
US10154347B2 (en) 2015-10-23 2018-12-11 Bose Corporation Bushings constrained by compression in levered apparatus
US11040682B1 (en) 2016-03-21 2021-06-22 Paradigm Research and Engineering, LLC Blast detection and safety deployment system and method for using the same
TWI610576B (zh) * 2016-08-15 2018-01-01 緯創資通股份有限公司 揚聲器
US10084410B2 (en) * 2016-12-15 2018-09-25 Bose Corporation Moving magnet motor and transducer with moving magnet motor
US11778385B2 (en) * 2017-06-23 2023-10-03 Cochlear Limited Electromagnetic transducer with non-axial air gap
CN109803216B (zh) * 2019-01-15 2020-11-20 哈尔滨工程大学 一种动磁式直线致动器
PH22020050739U1 (en) * 2019-12-30 2022-05-27 Knowles Electronics Llc Balanced armature receiver bobbin having coil with different windings
US12256207B2 (en) 2020-01-21 2025-03-18 Brane Audio, LLC Electroacoustic drivers and loudspeakers containing same
US11600435B2 (en) 2020-12-31 2023-03-07 Knowles Electronics, Llc Coil bobbin for a balanced armature receiver
US11889284B2 (en) * 2021-03-25 2024-01-30 Sound Solutions International Co., Ltd. Multi magnet electrodynamic acoustic transducer and electroacoustic system
US12532127B2 (en) * 2021-07-19 2026-01-20 Brane Audio, LLC Electroacoustic drivers and loudspeakers containing same
EP4207809B1 (de) 2021-12-29 2025-02-26 Powersoft SpA Schalldiffusor und verfahren zur herstellung eines schalldiffusors
IT202100032897A1 (it) 2021-12-29 2023-06-29 Powersoft S P A Trasduttore per un diffusore acustico e metodo per la produzione del trasduttore.
US12306018B1 (en) 2022-11-22 2025-05-20 St3 Development Corporation Material testing apparatus having vibration mitigation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026994A (en) * 1929-05-15 1936-01-07 Messick Charles Armature for magnetic movements
US3062926A (en) * 1959-03-20 1962-11-06 John J Ronci Magnet with vibratable armature
US3937904A (en) * 1974-08-07 1976-02-10 Hitachi Magnetics Corporation Moving magnet electroacoustic transducer
US4020361A (en) * 1974-10-04 1977-04-26 Delta Electronic Control Corporation Switching mode power controller of large dynamic range
DE3313333A1 (de) * 1983-04-13 1984-10-18 Battelle-Institut E.V., 6000 Frankfurt Vorrichtung zur erzeugung von magnetischen kraeften
GB2149272B (en) * 1983-10-26 1987-06-17 Adam Kovacs Electromechanical transducer
AU580794B2 (en) * 1984-09-03 1989-02-02 Sanden Corporation Dynamic transducer device
US5009281A (en) * 1988-03-10 1991-04-23 Yamaha Corporation Acoustic apparatus

Also Published As

Publication number Publication date
DE69206863T2 (de) 1996-05-15
CA2061444A1 (en) 1992-09-12
EP0508570A3 (en) 1993-08-04
DE69206863D1 (de) 1996-02-01
EP0508570B1 (de) 1995-12-20
EP0508570A2 (de) 1992-10-14
US5216723A (en) 1993-06-01
JPH0591592A (ja) 1993-04-09

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Legal Events

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