Piezoelectric Transducer Designs for Sonar Applications

  • James F. Tressler

An electroacoustic transducer is a device that converts acoustic energy (sound) into electrical energy (voltage or current) or vice versa. When the transducer is used to generate sound, it is called a projector, transmitter, or source. When it is used to detect sound, it is called a receiver. Furthermore, when the receiver is employed underwater, it is referred to as a hydrophone. An underwater sonar system consists of projectors, hydrophones, and associated electronics such as amplifiers and data acquisition systems. This chapter, however, will only cover the description and operational principles of the projector and hydrophone components. More specifically, the chapter will focus on piezoelectric ceramic-based transducer designs intended for underwater use that operate in the frequency band spanning from 1 kHz to 1MHz. This span covers weapons sonar (1–100kHz) and imaging sonar (100kHz to 1MHz) applications.


Directivity Index Piezoelectric Disk Sonar Application Transducer Design Acoustic Output 
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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • James F. Tressler
    • 1
  1. 1.Naval Research LaboratoryUSA

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