Measurement and Generation of Underwater Sounds

  • Whitlow W.L. Au
  • Mardi C. Hastings
Part of the Modern Acoustics and Signal Processing book series (MASP)

Electroacoustic Transducers

Acoustic signals are detected and generated with devices called electroacoustic transducers. These devices convert electrical energy into acoustic energy or acoustic energy into electrical energy. Transducer that converts acoustic energy into electrical energy has traditionally been called hydrophones or receiving transducers. Likewise, devices that convert electrical energy into acoustic energy are referred to as projectors or transmitting transducers. Many electroacoustic devices are used for both receiving and transmitting acoustic signals and are referred to as transducers.

In many instances, a bioacoustician has to construct his/her own transducer because of a special application requiring an unusual design or size, or because of budgetary constraints. The goal of this chapter is to provide sufficient information so you could, if necessary, construct transducers with a reasonable certainty of being successful, but without the need to become a transducer...


Barium Titanate Piezoelectric Transducer Acoustic Pressure Piezoelectric Ceramic Piezoelectric Element 
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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Hawaii Institute of Marine BiologyUniversity of HawaiiKaneoheUSA
  2. 2.Applied Research LaboratoryPenn State UniversityUSA

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