WO1994019914A1 - Appareil et procede de reproduction sonore rotatif a basse frequence - Google Patents
Appareil et procede de reproduction sonore rotatif a basse frequence Download PDFInfo
- Publication number
- WO1994019914A1 WO1994019914A1 PCT/US1993/001824 US9301824W WO9419914A1 WO 1994019914 A1 WO1994019914 A1 WO 1994019914A1 US 9301824 W US9301824 W US 9301824W WO 9419914 A1 WO9419914 A1 WO 9419914A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- cylindrical
- torque motor
- vanes
- chamber
- Prior art date
Links
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K26/00—Machines adapted to function as torque motors, i.e. to exert a torque when stalled
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K7/00—Sirens
- G10K7/02—Sirens in which the sound-producing member is rotated manually or by a motor
- G10K7/04—Sirens in which the sound-producing member is rotated manually or by a motor by an electric motor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
Definitions
- the torque motor 23 serves as means for applying rotational reciprocating movement to the rotor assembly 58 through the shaft 61.
- the drive signal to the torque motor 23 is provided by a power amplifier 75 through lines 76 and 77 with a ground return line 78 connected to ground through a low resistance armature-current sampling resistor 79.
- a driving signal for the power amplifier 75 is provided on a line 80 from a microcomputer 81 which has as its primary input a low-frequency audio signal applied on line 82.
- the position sensor 24 provides position information of the rotor assembly 58 to the microcomputer 81 through lines 83 and 84.
- Sw ld , Sw ⁇ and Sw 2b are open.
- the applied audio signal V ⁇ 82 and rotor assembly 58 position 0 from the encoder 24 are read, stored normalization values looked up in H 2 ' (0, V m ) in the linearization table, interpolation of stored normalization values performed if necessary, the applied audio signal V ⁇ 82 modified by addition of correcting signals vtl derived from H 2 ' (0,V j ..) in microcomputer 81, converted back to analog form by the A/D-D/A converter 88, and fed to line 80A.
- the friction-measuring process and the breakaway friction tables H 5 (0 s ,t,) and H 5 ' (0,,t.) may be extended to include velocity data as a third dimension.
- the spring spokes 267 of the spider 259 are approximately 1000 times more compliant axially than they are tangentially. They serve to transfer torque from the winding 272 to the hub 266 while being able to flex longitudinally of the torque motor rotational axis as the winding 272 expands and contracts with changing power input without having any tendency for the armature legs 267 to bow outwardly and touch the pole pieces 243 and 244.
- the thin (.014 inch) longitudinal aluminum saddles 257 are bonded to the inner and side surfaces of the legs 267 of the armature winding 272 to stiffen the armature winding 272 against lateral deflection during acceleration.
- FIG 11 there is shown a diffuser-attenuator 301 suitable for the rotary acoustic radiator assembly 116 of Figure 7 and rotary acoustic radiator assembly 131 of Figure 8.
- the radial sector user-side end ports 126 and 127 are not used but user-side ports 121 and 122 in the cylinder sidewall 52 are used.
- the cabinet 302 is like cabinet 26 shown in Figure 1. Cabinet ports (not shown) register with the bottom end wall ports 123 and 124 in the rotary acoustic radiator assembly 116.
- the stator assembly 352 is a composite structure comprised of two ferromagnetic components - a wound cylindical core 364 of ferromagnetic strip material a and a stator pole assembly 366 molded of ferromagnetic powder, said stator pole assembly 366 and bonded to the wound cylindrical core 364 with structural adhesives.
- a plurality of radially-oriented poles 368 and stator winding slots 370 is disposed alternately at equal intervals about the first axial face 360 of the stator assembly 352.
- stator poles 368 limits the 5 influence on motor torque of a single stator pole 368, i.e., if there are 12 stator poles 368 for each rotor pole sector 375, the influence of one stator pole 368 on total torque of that rotor pole sector 375 is roughly 8 percent, and if the stator poles 368 and their adjacent 0 windings are alike within 10 percent and do not of there own geometry generate torque ripple, an overall rotor pole sector 375 and hence motor torque ripple of 1 percent is possible.
- pulse winding 402 example shown with a multipole rotor assembly 354 as shown in this Figure 14, only two pulse windings 402 are necessary, as the two pulse windings 402 may be so disposed in the stator pole assembly 366 that for the ordinary angular rotation of a two-moving-vane rotary acoustic radiator 22, which is of the order of 100 to 130 degrees, one of the pulse windings 5 402 will always lie under a rotor pole sector 375 and thus be capable of generating multipole rotor assembly 354 torque.
- Movable vanes 671 and 672 are mounted on rotatable shaft 661 by means of hub 659 which is affixed to shaft 661.
- hub 659 which is affixed to shaft 661.
- movable vanes 671 and 672 rotate first in one direction and then in the opposite direction.
- Stationary vane 662 and a diametrically opposite corresponding stationary vane 663 are affixed to the interior surface of chamber 661.
- Stationary vanes 662 and 663 force air out of the interior chamber 661 or allow air to be drawn into chamber 661 through ports 664, 666, 668 and 670 (not shown) depending upon the direction of rotation of shaft 661 and movable vanes 671 and 672.
- Figures 16 and 17 illustrate two rotary acoustic radiators in accordance with the principals of this invention.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Brushless Motors (AREA)
- Rotary Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
L'invention concerne un appareil (21) de reproduction de sons à basse fréquence en réponse à l'application d'un signal électrique. Ledit appareil se compose d'un radiateur acoustique rotatif (22) comportant une chambre (26) renfermant un ensemble à rotor (58) présentant un arbre (61) sur lequel des ailettes mobiles (71, 72) sont montées rotatives de sorte qu'elles tournent sur un axe longitudinal. Des ailettes stationnaires (62, 63) sont montées dans la chambre et s'étendent généralement radialement entre les parois de la chambre et l'arbre. La chambre présente des orifices (64, 66, 67, 68) donnant dans l'intérieur de celle-ci et adjacents aux ailettes stationnaires prévues sur les côtés opposés desdites ailettes stationnaires. Les ailettes mobiles sont placées sur les côtés opposés des ailettes stationnaires et s'étendent généralement entre les parois de la chambre et l'arbre.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002156166A CA2156166C (fr) | 1990-12-20 | 1993-02-26 | Appareil tournant de reproduction sonore basse frequence et methode connexe |
| DE69332931T DE69332931T2 (de) | 1990-12-20 | 1993-02-26 | Drehendes niederfrequenz-tonwiedergabegerät und verfahren |
| JP51892494A JP3394776B2 (ja) | 1990-12-20 | 1993-02-26 | 回動式低周波音再生装置及び低周波音再生方法 |
| AU37829/93A AU3782993A (en) | 1990-12-20 | 1993-02-26 | Rotary low-frequency sound reproducing apparatus and method |
| US08/505,334 US5825901A (en) | 1990-12-20 | 1993-02-26 | Rotary low-frequency sound reproducing apparatus and method |
| EP93907108A EP0720810B1 (fr) | 1990-12-20 | 1993-02-26 | Appareil et procede de reproduction sonore rotatif a basse frequence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/632,047 US5191618A (en) | 1990-12-20 | 1990-12-20 | Rotary low-frequency sound reproducing apparatus and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1994019914A1 true WO1994019914A1 (fr) | 1994-09-01 |
Family
ID=24533859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1993/001824 WO1994019914A1 (fr) | 1990-12-20 | 1993-02-26 | Appareil et procede de reproduction sonore rotatif a basse frequence |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US5191618A (fr) |
| EP (1) | EP0720810B1 (fr) |
| JP (1) | JP3394776B2 (fr) |
| AU (1) | AU3782993A (fr) |
| CA (1) | CA2156166C (fr) |
| DE (1) | DE69332931T2 (fr) |
| WO (1) | WO1994019914A1 (fr) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5802189A (en) * | 1995-12-29 | 1998-09-01 | Samick Music Corporation | Subwoofer speaker system |
| US9800980B2 (en) | 2015-09-14 | 2017-10-24 | Wing Acoustics Limited | Hinge systems for audio transducers and audio transducers or devices incorporating the same |
| US11137803B2 (en) | 2017-03-22 | 2021-10-05 | Wing Acoustics Limited | Slim electronic devices and audio transducers incorporated therein |
| US11166100B2 (en) | 2017-03-15 | 2021-11-02 | Wing Acoustics Limited | Bass optimization for audio systems and devices |
Families Citing this family (71)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5191618A (en) * | 1990-12-20 | 1993-03-02 | Hisey Bradner L | Rotary low-frequency sound reproducing apparatus and method |
| US5313127A (en) * | 1993-02-05 | 1994-05-17 | Intersonics, Inc. | Moving magnet motor |
| JPH0879896A (ja) * | 1994-09-06 | 1996-03-22 | Canon Inc | スピーカ |
| US6133656A (en) * | 1995-08-18 | 2000-10-17 | Hisey; Bradner L. | Brushless commutated torque motor for use with a rotary low frequency sound reproducing apparatus |
| JP3454005B2 (ja) * | 1996-04-03 | 2003-10-06 | 松下電器産業株式会社 | スピーカ装置および音響再生装置 |
| DE19636742C2 (de) * | 1996-09-10 | 1999-05-12 | Siemens Matsushita Components | Einrichtung zur Einstellung eines definierten elektrischen Potentials auf einem Ferritkern eines induktiven Bauelementes und/oder zur Verringerung einer Bedämpfung des induktiven Bauelementes durch von dessen Magnetfeld induzierte Wirbelströme |
| WO1998042077A1 (fr) * | 1997-03-18 | 1998-09-24 | Nippon Columbia Co., Ltd. | Detecteur de distorsion, correcteur de distorsion, et procede de correction de distorsion pour signal audio numerique |
| CA2208499A1 (fr) | 1997-06-16 | 1998-12-16 | Hydro-Quebec | Roue a entrainement electrique audible et methode de fonctionnement |
| AU3987899A (en) * | 1998-05-22 | 1999-12-13 | Celeritek, Inc. | System and method for implementing a hybrid waveguide device |
| FR2808916B1 (fr) * | 2000-05-11 | 2003-08-15 | Jean Laurent Peube | Source et systeme electroaeroacoustiques pour controle actif du bruit |
| US6487297B1 (en) * | 2000-11-22 | 2002-11-26 | Yen Chin-Fa | Structure of a loudspeaker |
| FR2821440B1 (fr) * | 2001-02-26 | 2004-12-17 | Mecanique Vivante | Dispositif de sirene |
| US6559654B2 (en) * | 2001-03-29 | 2003-05-06 | General Electric Company | Method and system for automatic determination of inductance |
| FR2827955B1 (fr) * | 2001-07-27 | 2003-10-24 | Electricfil | Codeur avec pole irregulier pour capteur de position |
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| JP3880493B2 (ja) * | 2002-09-18 | 2007-02-14 | キヤノン株式会社 | スピーカシステム、能動式室内低音残響制御方式 |
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| FI116506B (fi) * | 2003-07-08 | 2005-11-30 | Harri Hietala | Ympärisäteilevä stereokaiutin |
| US20050031134A1 (en) * | 2003-08-07 | 2005-02-10 | Tymphany Corporation | Position detection of an actuator using infrared light |
| US20050031140A1 (en) * | 2003-08-07 | 2005-02-10 | Tymphany Corporation | Position detection of an actuator using a capacitance measurement |
| US20050031138A1 (en) * | 2003-08-07 | 2005-02-10 | Tymphany Corporation | Method of measuring a cant of an actuator |
| US20050031131A1 (en) * | 2003-08-07 | 2005-02-10 | Tymphany Corporation | Method of modifying dynamics of a system |
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| US20060104451A1 (en) * | 2003-08-07 | 2006-05-18 | Tymphany Corporation | Audio reproduction system |
| US20050031137A1 (en) * | 2003-08-07 | 2005-02-10 | Tymphany Corporation | Calibration of an actuator |
| US20050031133A1 (en) * | 2003-08-07 | 2005-02-10 | Tymphany Corporation | Process for position indication |
| JP2005261135A (ja) * | 2004-03-12 | 2005-09-22 | Seiko Epson Corp | モータ及びその駆動制御システム |
| US20120195749A1 (en) | 2004-03-15 | 2012-08-02 | Airius Ip Holdings, Llc | Columnar air moving devices, systems and methods |
| SE527582C2 (sv) * | 2004-04-23 | 2006-04-18 | Lars Stroembaeck | Kombinerad fläkt och högtalare |
| JP2007067999A (ja) * | 2005-09-01 | 2007-03-15 | Nippon Densan Corp | 振動音響発生装置 |
| US20080232636A1 (en) * | 2007-03-23 | 2008-09-25 | Sonic Dynamics, Llc | Sonic piston |
| CN101678766A (zh) * | 2007-04-10 | 2010-03-24 | 沃尔沃建筑设备公司 | 用于将反馈提供给车辆操作员的方法和系统 |
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| US7860265B2 (en) * | 2007-07-30 | 2010-12-28 | John Joseph Gaudreault | Diaphragm for full range boxless rotary loudspeaker driver |
| US9151295B2 (en) | 2008-05-30 | 2015-10-06 | Airius Ip Holdings, Llc | Columnar air moving devices, systems and methods |
| US8616842B2 (en) * | 2009-03-30 | 2013-12-31 | Airius Ip Holdings, Llc | Columnar air moving devices, systems and method |
| CA2771216C (fr) * | 2009-08-10 | 2017-12-12 | Tyco Fire Products Lp | Sirene |
| DE102011079375A1 (de) | 2010-10-06 | 2012-04-12 | Conti Temic Microelectronic Gmbh | Verfahren zum Betrieb einer Fahrpedaleinheit für Kraftfahrzeuge |
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| US20120113754A1 (en) | 2010-11-09 | 2012-05-10 | Eminent Technology Incorporated | Active non-lethal avian denial infrasound systems and methods of avian denial |
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| AU2012271641B2 (en) | 2011-06-15 | 2015-10-01 | Airius Ip Holdings, Llc | Columnar air moving devices and systems |
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- 1993-02-26 DE DE69332931T patent/DE69332931T2/de not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5802189A (en) * | 1995-12-29 | 1998-09-01 | Samick Music Corporation | Subwoofer speaker system |
| US9800980B2 (en) | 2015-09-14 | 2017-10-24 | Wing Acoustics Limited | Hinge systems for audio transducers and audio transducers or devices incorporating the same |
| US10244325B2 (en) | 2015-09-14 | 2019-03-26 | Wing Acoustics Limited | Audio transducer and audio devices incorporating the same |
| US10701490B2 (en) | 2015-09-14 | 2020-06-30 | Wing Acoustics Limited | Audio transducers |
| US10887701B2 (en) | 2015-09-14 | 2021-01-05 | Wing Acoustics Limited | Audio transducers |
| US11102582B2 (en) | 2015-09-14 | 2021-08-24 | Wing Acoustics Limited | Audio transducers and devices incorporating the same |
| US11490205B2 (en) | 2015-09-14 | 2022-11-01 | Wing Acoustics Limited | Audio transducers |
| US11716571B2 (en) | 2015-09-14 | 2023-08-01 | Wing Acoustics Limited | Relating to audio transducers |
| US11968510B2 (en) | 2015-09-14 | 2024-04-23 | Wing Acoustics Limited | Audio transducers |
| US11166100B2 (en) | 2017-03-15 | 2021-11-02 | Wing Acoustics Limited | Bass optimization for audio systems and devices |
| US11137803B2 (en) | 2017-03-22 | 2021-10-05 | Wing Acoustics Limited | Slim electronic devices and audio transducers incorporated therein |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2156166C (fr) | 2001-08-14 |
| AU3782993A (en) | 1994-09-14 |
| DE69332931D1 (de) | 2003-06-05 |
| US5191618A (en) | 1993-03-02 |
| CA2156166A1 (fr) | 1994-09-01 |
| DE69332931T2 (de) | 2004-04-01 |
| EP0720810A4 (fr) | 1996-02-26 |
| US5825901A (en) | 1998-10-20 |
| JP3394776B2 (ja) | 2003-04-07 |
| JPH08507419A (ja) | 1996-08-06 |
| EP0720810B1 (fr) | 2003-05-02 |
| EP0720810A1 (fr) | 1996-07-10 |
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