Applied physics

, Volume 22, Issue 1, pp 31–34 | Cite as

Magnetically tunable ultrasonic transducers for shear waves

  • W. Rehwald
  • W. Wettling
Contributed Papers


Single crystal platelets of FeBO3 are used as magnetoelastically excited shear wave transducers in the 10–100MHz region. Due to a strong dependence of the elastic stiffness on an applied magnetic dc field the resonance frequency is magnetically tunable in a region of about 25 percent around the centre frequency. A pulse-echo experiment was used to compare the conversion efficiencies of the FeBO3 transducer and a conventional quartz transducer. The insertion losses were found to be approximately equal for both transducers and in accordance with the calculated values.


75.80.+q 62.20. Dc 


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Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • W. Rehwald
    • 1
  • W. Wettling
    • 2
  1. 1.Laboratories RCA Ltd.ZürichSwitzerland
  2. 2.Fraunhofer-Institut für Angewandte FestkörperphysikFreiburgFed. Rep. Germany

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