ES2095311T3 - Sistema activo de reduccion de vibraciones. - Google Patents

Sistema activo de reduccion de vibraciones.

Info

Publication number
ES2095311T3
ES2095311T3 ES91901848T ES91901848T ES2095311T3 ES 2095311 T3 ES2095311 T3 ES 2095311T3 ES 91901848 T ES91901848 T ES 91901848T ES 91901848 T ES91901848 T ES 91901848T ES 2095311 T3 ES2095311 T3 ES 2095311T3
Authority
ES
Spain
Prior art keywords
vibration
source
active vibration
reduction system
vibration reduction
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
ES91901848T
Other languages
English (en)
Spanish (es)
Inventor
Colin Fraser Ross
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.)
Noise Cancellation Technologies Inc
Original Assignee
Noise Cancellation Technologies Inc
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 Noise Cancellation Technologies Inc filed Critical Noise Cancellation Technologies Inc
Application granted granted Critical
Publication of ES2095311T3 publication Critical patent/ES2095311T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10K11/17823—Reference signals, e.g. ambient acoustic environment
    • 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
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
    • 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
    • G10K2210/10—Applications
    • G10K2210/125—Transformers
    • 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
    • G10K2210/128—Vehicles
    • 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
    • G10K2210/128—Vehicles
    • G10K2210/1281—Aircraft, e.g. spacecraft, airplane or helicopter
    • 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
    • G10K2210/128—Vehicles
    • G10K2210/1282—Automobiles
    • G10K2210/12822—Exhaust pipes or mufflers
    • 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
    • G10K2210/129—Vibration, e.g. instead of, or in addition to, acoustic noise
    • 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
    • G10K2210/3019—Cross-terms between multiple in's and out's
    • 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
    • G10K2210/50—Miscellaneous
    • G10K2210/511—Narrow band, e.g. implementations for single frequency cancellation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Vibration Prevention Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Cyclones (AREA)
ES91901848T 1989-12-30 1990-12-24 Sistema activo de reduccion de vibraciones. Expired - Lifetime ES2095311T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898929358A GB8929358D0 (en) 1989-12-30 1989-12-30 Active vibration reducing system

Publications (1)

Publication Number Publication Date
ES2095311T3 true ES2095311T3 (es) 1997-02-16

Family

ID=10668596

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91901848T Expired - Lifetime ES2095311T3 (es) 1989-12-30 1990-12-24 Sistema activo de reduccion de vibraciones.

Country Status (7)

Country Link
EP (1) EP0507829B1 (de)
JP (1) JPH05508233A (de)
AT (1) ATE144854T1 (de)
DE (1) DE69029044T2 (de)
ES (1) ES2095311T3 (de)
GB (1) GB8929358D0 (de)
WO (1) WO1991010226A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9116433D0 (en) * 1991-07-30 1991-09-11 Active Noise & Vibration Tech Noise reduction system
US5361303A (en) * 1993-04-01 1994-11-01 Noise Cancellation Technologies, Inc. Frequency domain adaptive control system
GB9414484D0 (en) * 1994-07-18 1994-09-21 Marconi Gec Ltd An apparatus for cancelling vibrations
CA2307117A1 (en) * 1997-10-24 1999-05-06 Lord Corporation Control system and method for resonant apparatus such as adaptive tunable vibration absorbers
JP2010152240A (ja) * 2008-12-26 2010-07-08 Panasonic Corp 騒音制御装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1577322A (en) * 1976-05-13 1980-10-22 Bearcroft R Active attenuation of recurring vibrations
US4490841A (en) * 1981-10-21 1984-12-25 Sound Attenuators Limited Method and apparatus for cancelling vibrations
GB2107960B (en) * 1981-10-21 1985-09-18 George Brian Barrie Chaplin Method and apparatus for cancelling vibrations
GB8328997D0 (en) * 1983-10-31 1983-11-30 Secr Defence Active noise reduction
US4689821A (en) * 1985-09-23 1987-08-25 Lockheed Corporation Active noise control system
GB8610744D0 (en) * 1986-05-01 1986-06-04 Plessey Co Plc Adaptive disturbance suppression

Also Published As

Publication number Publication date
DE69029044T2 (de) 1997-04-30
GB8929358D0 (en) 1990-02-28
EP0507829B1 (de) 1996-10-30
JPH05508233A (ja) 1993-11-18
ATE144854T1 (de) 1996-11-15
DE69029044D1 (de) 1996-12-05
EP0507829A1 (de) 1992-10-14
WO1991010226A1 (en) 1991-07-11

Similar Documents

Publication Publication Date Title
SE9504258D0 (sv) Device and method for generating a synthesized ECG
FI952639A0 (fi) Pulssivaihtosuuntaajan syöttämän koneen vähä-ääninen käyttö
KR950021481A (ko) 내부 강압전원 회로
KR920002270A (ko) 초음파가공기의 진폭제어장치
BR9102241A (pt) Instalacao geradora de energia,emprego de uma instalacao geradora de energia e propulsao de embarcacao
SE9401402D0 (sv) Medicinskt implantat
BR9917534A (pt) Método e aparelho para gerar pulsos a partir de formas de onda analógicas
SE8400405D0 (sv) Strommataranordning
ES2095311T3 (es) Sistema activo de reduccion de vibraciones.
DK0555266T3 (da) Aktivt vibrationskontrolsystem
RU95114588A (ru) Способ воздействия на организм и устройство для его осуществления
KR960039610A (ko) 파장의 공명을 이용한 유해전자파 제거방법
DK0555248T3 (da) Aktivt vibrationskontrolsystem med flere indgange
EP0338726A3 (de) Bildverarbeitungsgerät
RU95120811A (ru) Способ генерирования колебаний
NO901697L (no) Fremgangsmaate og generator for aa frembringe akustisk boelgeenergi.
Bai et al. Noise control of harmonic fields by using BEM-based optimization techniques
GB9307716D0 (en) Method & apparatus for generating harmonic accompaniment to the fundamental frequency of an input tonal waveform
SE9303728D0 (sv) Arrangement and method for generation of quadrature signals
IT1263014B (it) Procedimento per tonificare e migliorare la capacita' del sistema muscolare umano a produrre lavoro e mezzi per la realizzazione di detto procedimento.
RU2000606C1 (ru) Устройство дл формировани функций
韩厚德 A SYSTEM OF BOUNDARY INTEGRO-DIFFERENTIAL EQUATIONS FOR HARMONIC ELASTIC WAVES IN R3
FI941358L (fi) Menetelmä värähtelyjen säätämiseksi
KR970004265A (ko) 모타의 속도 제어장치
KR920010033A (ko) 에칭 방법

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 507829

Country of ref document: ES