Journal of Magnetics

  • 제16권4호
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  • Pages.461-465
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  • 2011
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  • 1226-1750(pISSN)
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  • 2233-6656(eISSN)
한국자기학회 (The Korean Magnetics Society)
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The Dumb-bell Shaped Magnetostrictive/Piezoelectric Transducer

  • Li, Jianzhong (The Key Laboratory for Optoelectronic Technology and Systems, Ministry of Education and the College of Optoelectronic Engineering, Chongqing University) ;
  • Wen, Yumei (The Key Laboratory for Optoelectronic Technology and Systems, Ministry of Education and the College of Optoelectronic Engineering, Chongqing University) ;
  • Li, Ping (The Key Laboratory for Optoelectronic Technology and Systems, Ministry of Education and the College of Optoelectronic Engineering, Chongqing University)
  • 투고 : 2011.10.15
  • 심사 : 2011.11.09
  • 발행 : 2011.12.31
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초록

Traditional magnetostrictive/piezoelectric laminate composites are generally in the regular geometries such as rectangles or disks. To explore properties of the irregular geometry magnetostrictive/piezoelectric transducer in the fundamental resonant frequency, a step dumb-bell shaped Magnetoelectric (ME) transducer is presented in this study. Both analytical and experimental investigations are carried out for the dumb-bell shaped transducer in the fundamental frequency. Comparing with the traditional rectangular transducer, the theory shows the resonant frequency of dumb-bell shaped transducer is reduced 31%, and the experiment gives the result of that is 37% which is independent of dc magnetic fields. The ratio of magnetoelectric voltage coefficient (MEVC) between the dumb-bell shaped and rectangular shaped transducers in theory is 66% comparing with that of in experiment is varying from 140% to 33% when the dc field is increased from 0 Oe to 118 Oe.

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참고문헌

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