A Magnetostrictive Transducer Design

  • G. A. Steel
  • J. R. Oswin
Conference paper

Abstract

A magnetostrictive sonar transducer operating at 1350 Hz is described. The device is a small double-ended piston containing three terfenoi rods in independent magnetic circuits. The paper presents detailed aspects of the design and a summary of test results. An important observation is the effect of heat on terfenoi, which causes changes in elastic modulus and hence resonant frequency. Experience with this device allows a course to be set for future studies, both into material properties and associated transducer designs.

Keywords

Permeability Cage Nylon Acoustics Sonar 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 12.1
    K.C.Pitman, A.Branwood, and A.R.Pierce, “Device Oriented Measurements of Terfenol Materials,” Proceedings of Second International Conference on Giant Magnetrostrictive and Amorphous Alloys for Sensors and Actuators. October 1988.Google Scholar
  2. 12.2
    Mu-metal Alloys Publication TP11–576, Telecon Metals Ltd, Crawley, Sussex.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • G. A. Steel
    • 1
  • J. R. Oswin
    • 1
  1. 1.British Aerospace (Dynamics) LtdFilton, BristolUK

Personalised recommendations