Controlled directivity emfi panel loudspeaker

Marko Antila, Jari Kataja, Bertrand Pissondes

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    Abstract

    Active Control of Sound (ACS) has been a promising method for noise control (Active Noise Control, ANC) and also for other applications such as active absorption and active increase of sound transmission loss of partitions. VTT has developed a new method to manufacture thin, flat and efficient acoustic sensors and actuators utilizing ElectroMechanical Film (EMFiT) technology. Sensors and actuators can be easily implemented in ACS applications, where large surfaces should be covered with sensors or anti-sound producing elements.EMFi panel sensors and actuators are thin elements, which can be collocated forming an advanced sensor-actuator combination. Using sensors and actuators together with advanced amplifiers and JMC-method based control systems it is possible to create totally new approach for the active control of sound. Two larger European Union funded research projects, led by VTT, and several smaller ones, are focusing on the use of EMFi panel elements in ANC systems. The principles and some results of the use of EMFi-technology in active noise control are presented in this paper. Main application areas are the traditional ventilation noise control in ducts and the sound transmission loss increase of panels for the noise reduction in buildings and in transportation systems (to reduce noise entering the cabin of cars and trains).
    Original languageEnglish
    Title of host publicationINTER-NOISE and NOISE-CON Congress and Conference Proceedings, Active99
    Pages1171- 1182
    Number of pages12
    Publication statusPublished - 1999
    MoE publication typeB3 Non-refereed article in conference proceedings
    EventInternational Symposium on Active Control of Sound and Vibration, ACTIVE 99 - Fort Lauderdale, United States
    Duration: 4 Dec 19996 Dec 1999

    Conference

    ConferenceInternational Symposium on Active Control of Sound and Vibration, ACTIVE 99
    Abbreviated titleACTIVE
    CountryUnited States
    CityFort Lauderdale
    Period4/12/996/12/99

    Fingerprint

    loudspeakers
    directivity
    active control
    actuators
    sensors
    acoustics
    sound transmission
    transmission loss
    European Union
    cabins
    ventilation
    research projects
    noise reduction
    ducts
    partitions
    amplifiers

    Cite this

    Antila, M., Kataja, J., & Pissondes, B. (1999). Controlled directivity emfi panel loudspeaker. In INTER-NOISE and NOISE-CON Congress and Conference Proceedings, Active99 (pp. 1171- 1182)
    Antila, Marko ; Kataja, Jari ; Pissondes, Bertrand. / Controlled directivity emfi panel loudspeaker. INTER-NOISE and NOISE-CON Congress and Conference Proceedings, Active99. 1999. pp. 1171- 1182
    @inproceedings{212f409cdec140389e390cf2c816bf91,
    title = "Controlled directivity emfi panel loudspeaker",
    abstract = "Active Control of Sound (ACS) has been a promising method for noise control (Active Noise Control, ANC) and also for other applications such as active absorption and active increase of sound transmission loss of partitions. VTT has developed a new method to manufacture thin, flat and efficient acoustic sensors and actuators utilizing ElectroMechanical Film (EMFiT) technology. Sensors and actuators can be easily implemented in ACS applications, where large surfaces should be covered with sensors or anti-sound producing elements.EMFi panel sensors and actuators are thin elements, which can be collocated forming an advanced sensor-actuator combination. Using sensors and actuators together with advanced amplifiers and JMC-method based control systems it is possible to create totally new approach for the active control of sound. Two larger European Union funded research projects, led by VTT, and several smaller ones, are focusing on the use of EMFi panel elements in ANC systems. The principles and some results of the use of EMFi-technology in active noise control are presented in this paper. Main application areas are the traditional ventilation noise control in ducts and the sound transmission loss increase of panels for the noise reduction in buildings and in transportation systems (to reduce noise entering the cabin of cars and trains).",
    author = "Marko Antila and Jari Kataja and Bertrand Pissondes",
    year = "1999",
    language = "English",
    pages = "1171-- 1182",
    booktitle = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings, Active99",

    }

    Antila, M, Kataja, J & Pissondes, B 1999, Controlled directivity emfi panel loudspeaker. in INTER-NOISE and NOISE-CON Congress and Conference Proceedings, Active99. pp. 1171- 1182, International Symposium on Active Control of Sound and Vibration, ACTIVE 99, Fort Lauderdale, United States, 4/12/99.

    Controlled directivity emfi panel loudspeaker. / Antila, Marko; Kataja, Jari; Pissondes, Bertrand.

    INTER-NOISE and NOISE-CON Congress and Conference Proceedings, Active99. 1999. p. 1171- 1182.

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    TY - GEN

    T1 - Controlled directivity emfi panel loudspeaker

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    AU - Kataja, Jari

    AU - Pissondes, Bertrand

    PY - 1999

    Y1 - 1999

    N2 - Active Control of Sound (ACS) has been a promising method for noise control (Active Noise Control, ANC) and also for other applications such as active absorption and active increase of sound transmission loss of partitions. VTT has developed a new method to manufacture thin, flat and efficient acoustic sensors and actuators utilizing ElectroMechanical Film (EMFiT) technology. Sensors and actuators can be easily implemented in ACS applications, where large surfaces should be covered with sensors or anti-sound producing elements.EMFi panel sensors and actuators are thin elements, which can be collocated forming an advanced sensor-actuator combination. Using sensors and actuators together with advanced amplifiers and JMC-method based control systems it is possible to create totally new approach for the active control of sound. Two larger European Union funded research projects, led by VTT, and several smaller ones, are focusing on the use of EMFi panel elements in ANC systems. The principles and some results of the use of EMFi-technology in active noise control are presented in this paper. Main application areas are the traditional ventilation noise control in ducts and the sound transmission loss increase of panels for the noise reduction in buildings and in transportation systems (to reduce noise entering the cabin of cars and trains).

    AB - Active Control of Sound (ACS) has been a promising method for noise control (Active Noise Control, ANC) and also for other applications such as active absorption and active increase of sound transmission loss of partitions. VTT has developed a new method to manufacture thin, flat and efficient acoustic sensors and actuators utilizing ElectroMechanical Film (EMFiT) technology. Sensors and actuators can be easily implemented in ACS applications, where large surfaces should be covered with sensors or anti-sound producing elements.EMFi panel sensors and actuators are thin elements, which can be collocated forming an advanced sensor-actuator combination. Using sensors and actuators together with advanced amplifiers and JMC-method based control systems it is possible to create totally new approach for the active control of sound. Two larger European Union funded research projects, led by VTT, and several smaller ones, are focusing on the use of EMFi panel elements in ANC systems. The principles and some results of the use of EMFi-technology in active noise control are presented in this paper. Main application areas are the traditional ventilation noise control in ducts and the sound transmission loss increase of panels for the noise reduction in buildings and in transportation systems (to reduce noise entering the cabin of cars and trains).

    M3 - Conference article in proceedings

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    Antila M, Kataja J, Pissondes B. Controlled directivity emfi panel loudspeaker. In INTER-NOISE and NOISE-CON Congress and Conference Proceedings, Active99. 1999. p. 1171- 1182