• DocumentCode
    1081148
  • Title

    Directional transducers

  • Author

    Sessler, G.M. ; West, J.E.

  • Author_Institution
    Bell Telephone Laboratories, Inc. Murray Hill, NJ, USA
  • Volume
    19
  • Issue
    1
  • fYear
    1971
  • fDate
    3/1/1971 12:00:00 AM
  • Firstpage
    19
  • Lastpage
    23
  • Abstract
    Directional electroacoustic transducers for the audio-frequency range, based on the electrostatic principle using foil electrets, have been designed. The directivity is achieved by utilizing first, second, and higher order gradients with bidirectional, unidirectional, and toroidal characteristics. Experimental results on directional characteristics directivity factor, and frequency response for each type of transducer are described. Possible application of such directional microphones in two-way communication systems is also discussed.
  • Keywords
    Acoustic transducers; Electrets; Electrostatics; Frequency response; Geometry; Interference; Laboratories; Loudspeakers; Microphones; Telephony;
  • fLanguage
    English
  • Journal_Title
    Audio and Electroacoustics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9278
  • Type

    jour

  • DOI
    10.1109/TAU.1971.1162155
  • Filename
    1162155
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1081148