DE69206863D1 - Permanentmagnetwandler - Google Patents

Permanentmagnetwandler

Info

Publication number
DE69206863D1
DE69206863D1 DE69206863T DE69206863T DE69206863D1 DE 69206863 D1 DE69206863 D1 DE 69206863D1 DE 69206863 T DE69206863 T DE 69206863T DE 69206863 T DE69206863 T DE 69206863T DE 69206863 D1 DE69206863 D1 DE 69206863D1
Authority
DE
Germany
Prior art keywords
core
permanent magnet
shaped
gap
plane
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 - Lifetime
Application number
DE69206863T
Other languages
English (en)
Other versions
DE69206863T2 (de
Inventor
Thomas A Froeschle
Ricardo F Carreras
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.)
Bose Corp
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
Publication of DE69206863D1 publication Critical patent/DE69206863D1/de
Application granted granted Critical
Publication of DE69206863T2 publication Critical patent/DE69206863T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • 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; 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

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)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Measuring Magnetic Variables (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
DE69206863T 1991-03-11 1992-02-20 Permanentmagnetwandler Expired - Lifetime DE69206863T2 (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 (2)

Publication Number Publication Date
DE69206863D1 true DE69206863D1 (de) 1996-02-01
DE69206863T2 DE69206863T2 (de) 1996-05-15

Family

ID=24678317

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69206863T Expired - Lifetime DE69206863T2 (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 (39)

* 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
DK2298370T3 (da) 2002-02-21 2014-01-27 Design Mentor Inc Fluidpumpe
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
US8295536B2 (en) 2010-03-31 2012-10-23 Bose Corporation Moving magnet levered loudspeaker
US8295537B2 (en) * 2010-03-31 2012-10-23 Bose Corporation Loudspeaker moment and torque balancing
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
CN105453590B (zh) * 2013-06-14 2019-01-25 珍尼雷克公司 一种悬置元件以及包括该悬置元件的驱动器和扬声器
EP2914018B1 (de) * 2014-02-26 2016-11-09 Sonion Nederland B.V. Lautsprecher, verankerung und verfahren
US9497549B2 (en) 2014-03-07 2016-11-15 Bose Corporation Levered loudspeakers
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
US9130445B1 (en) * 2014-08-04 2015-09-08 David Micah Katz Electromechanical transducer with non-circular voice coil
CN204733374U (zh) * 2015-06-23 2015-10-28 瑞声光电科技(常州)有限公司 扬声器
CN204741558U (zh) * 2015-06-23 2015-11-04 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
CN213661893U (zh) * 2019-12-30 2021-07-09 美商楼氏电子有限公司 声接收器
EP4094451A1 (de) * 2020-01-21 2022-11-30 Clean Energy Labs, LLC Elektroakustische treiber und lautsprecher damit
US11600435B2 (en) 2020-12-31 2023-03-07 Knowles Electronics, Llc Coil bobbin for a balanced armature receiver
WO2023003807A1 (en) * 2021-07-19 2023-01-26 Clean Energy Labs, Llc Electroacoustic drivers and loudspeakers containing same
EP4207809A1 (de) 2021-12-29 2023-07-05 Powersoft SpA Schalldiffusor und verfahren zur diffusion eines schalls durch einen schalldiffusor
IT202100032897A1 (it) 2021-12-29 2023-06-29 Powersoft S P A Trasduttore per un diffusore acustico e metodo per la produzione del trasduttore.

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
DE3527501A1 (de) * 1984-09-03 1986-03-13 Sanden Corp., Isesaki, Gunma Dynamische wandlereinrichtung
US5009281A (en) * 1988-03-10 1991-04-23 Yamaha Corporation Acoustic apparatus

Also Published As

Publication number Publication date
CA2061444A1 (en) 1992-09-12
EP0508570A2 (de) 1992-10-14
ATE131991T1 (de) 1996-01-15
US5216723A (en) 1993-06-01
EP0508570A3 (en) 1993-08-04
EP0508570B1 (de) 1995-12-20
JPH0591592A (ja) 1993-04-09
DE69206863T2 (de) 1996-05-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition