CA2049332C - Controle actif du bruit et des vibrations - Google Patents
Controle actif du bruit et des vibrations Download PDFInfo
- Publication number
- CA2049332C CA2049332C CA002049332A CA2049332A CA2049332C CA 2049332 C CA2049332 C CA 2049332C CA 002049332 A CA002049332 A CA 002049332A CA 2049332 A CA2049332 A CA 2049332A CA 2049332 C CA2049332 C CA 2049332C
- Authority
- CA
- Canada
- Prior art keywords
- vibration
- source
- sound
- sensors
- output
- 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 - Fee Related
Links
Classifications
-
- 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
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17879—General system configurations using both a reference signal and an error signal
- G10K11/17883—General system configurations using both a reference signal and an error signal the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed
-
- 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
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
- G10K11/17821—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
-
- 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
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
- G10K11/17821—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
- G10K11/17825—Error signals
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/121—Rotating machines, e.g. engines, turbines, motors; Periodic or quasi-periodic signals in general
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3024—Expert systems, e.g. artificial intelligence
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3025—Determination of spectrum characteristics, e.g. FFT
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3032—Harmonics or sub-harmonics
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3042—Parallel processing
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3046—Multiple acoustic inputs, multiple acoustic outputs
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3051—Sampling, e.g. variable rate, synchronous, decimated or interpolated
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Vibration Prevention Devices (AREA)
- Cosmetics (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Un système de contrôle de son ou de vibration pour compenser le bruit ou les vibrations provenant d'une source périodique de périodicité variable comprend des détecteurs (6) qui détectent ledit bruit et lesdites vibrations. Un CAN (8), actionné par la sortie de signaux provenant d'un détecteur (3) qui détermine la position de la source dans son cycle, prélève des échantillons desdits signaux plusieurs fois par cycle. Les échantillons prélevés sont transformés en valeurs de signaux d'entraînement pour actionneurs de compensation, la transformation étant accomplie par une série de modules de transformation et d'adaptation (11 à 13, 15) à base d'algorithmes réalisés en fonction de la fréquence de la source. Les valeurs des signaux d'entraînement sont emmagasinées dans une mémoire (1) mise à jour continuellement en fonction des valeurs provenant des signaux échantillonnés du détecteur.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8909433A GB2230920B (en) | 1989-04-25 | 1989-04-25 | Active sound and/or vibration control |
GB8909433.8 | 1989-04-25 | ||
PCT/GB1990/000617 WO1990013108A1 (fr) | 1989-04-25 | 1990-04-20 | Systeme actif de controle de son et/ou de vibrations |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2049332A1 CA2049332A1 (fr) | 1990-10-26 |
CA2049332C true CA2049332C (fr) | 2000-08-01 |
Family
ID=10655687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002049332A Expired - Fee Related CA2049332C (fr) | 1989-04-25 | 1990-04-20 | Controle actif du bruit et des vibrations |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0470153B1 (fr) |
JP (1) | JPH04505221A (fr) |
AU (1) | AU635266B2 (fr) |
CA (1) | CA2049332C (fr) |
DE (1) | DE69025604T2 (fr) |
ES (1) | ES2084028T3 (fr) |
GB (1) | GB2230920B (fr) |
WO (1) | WO1990013108A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2265277B (en) * | 1992-03-17 | 1996-07-24 | Fuji Heavy Ind Ltd | Noise reduction system for automobile compartment |
FR2692709B1 (fr) * | 1992-06-18 | 1994-09-16 | Renault | Dispositif de contrôle actif du bruit dans l'habitacle d'un véhicule automobile. |
DE69423531T2 (de) * | 1993-02-02 | 2000-07-20 | Honda Motor Co Ltd | Schwingungs/Lärmverminderungsvorrichtung |
US5660255A (en) * | 1994-04-04 | 1997-08-26 | Applied Power, Inc. | Stiff actuator active vibration isolation system |
DE19944985B4 (de) * | 1999-09-20 | 2005-04-28 | Siemens Ag | Messverfahren zur Strommessung mit Rauschunterdrückung |
US8302456B2 (en) | 2006-02-23 | 2012-11-06 | Asylum Research Corporation | Active damping of high speed scanning probe microscope components |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5717027A (en) * | 1980-07-03 | 1982-01-28 | Hitachi Ltd | Vibration reducing device of electric machinery |
JPS58153313A (ja) * | 1982-03-08 | 1983-09-12 | Hitachi Ltd | 低騒音静止誘導電器 |
GB2122052B (en) * | 1982-06-09 | 1986-01-29 | Plessey Co Plc | Reducing noise or vibration |
GB8525800D0 (en) * | 1985-10-18 | 1985-11-20 | Contranoise Ltd | Transfer function generation |
WO1988002912A1 (fr) * | 1986-10-07 | 1988-04-21 | Adaptive Control Limited | Limitation active des vibrations |
JPH01159406A (ja) * | 1987-12-15 | 1989-06-22 | Mitsui Eng & Shipbuild Co Ltd | プロペラ音の能動消音方法及び装置 |
GB2222053B (en) * | 1988-08-17 | 1993-03-31 | Topexpress Ltd | Signal processing means for sensing a periodic signal in the presence of another interfering periodic noise |
-
1989
- 1989-04-25 GB GB8909433A patent/GB2230920B/en not_active Expired - Fee Related
-
1990
- 1990-04-20 AU AU55456/90A patent/AU635266B2/en not_active Ceased
- 1990-04-20 CA CA002049332A patent/CA2049332C/fr not_active Expired - Fee Related
- 1990-04-20 DE DE69025604T patent/DE69025604T2/de not_active Expired - Fee Related
- 1990-04-20 EP EP90907216A patent/EP0470153B1/fr not_active Expired - Lifetime
- 1990-04-20 WO PCT/GB1990/000617 patent/WO1990013108A1/fr active IP Right Grant
- 1990-04-20 ES ES90907216T patent/ES2084028T3/es not_active Expired - Lifetime
- 1990-04-20 JP JP2506649A patent/JPH04505221A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0470153A1 (fr) | 1992-02-12 |
AU5545690A (en) | 1990-11-16 |
GB2230920B (en) | 1993-12-22 |
WO1990013108A1 (fr) | 1990-11-01 |
CA2049332A1 (fr) | 1990-10-26 |
AU635266B2 (en) | 1993-03-18 |
GB8909433D0 (en) | 1989-06-14 |
JPH04505221A (ja) | 1992-09-10 |
EP0470153B1 (fr) | 1996-02-28 |
DE69025604T2 (de) | 1996-10-24 |
ES2084028T3 (es) | 1996-05-01 |
GB2230920A (en) | 1990-10-31 |
DE69025604D1 (de) | 1996-04-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |