Magnetic field tuning characteristics of bimodal ultrasonic motor stator

  • Chong Li (李 冲)
  • Cunyue Lu (鹿存跃)
  • Yixin Ma (马艺馨)


The magnetic field tuning characteristics of an ultrasonic motor (USM) stator are discussed. The stator consists of two piezoelectric ceramic transducer (PZT) plates and one sandwiched-in Terfenol-D plate. The dimensions of the stator are carefully adjusted to specifically discuss the influence of the magnetic field on the frequency difference between the longitudinal and bending modes of the stator. The frequency difference discussed in this paper is usually small and mainly caused by uneven materials, machining errors and changes in external conditions (temperature, pre-stress or load). The longitudinal and bending modes of the stator are simultaneously excited by an external electric field to generate the elliptic motion trajectories of the driving points. A direct current (DC) magnetic field is applied to decrease the difference between the two mode frequencies of the fabricated stator. In experiments, the dependences of the two mode frequencies and their difference on DC magnetic fields are all investigated. The experimental results indicate that the difference between the longitudinal and bending mode frequencies of the PZT/Terfenol-D/PZT composite stator can be tuned by changing the intensity of the external DC magnetic field.

Key words

magnetic field ultrasonic motor Terfenol-D frequency difference 

CLC number

TM 356 

Document code


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  1. [1]
    YANG X H, LIU Y X, CHEN W S, et al. Miniaturization of a longitudinal-bending hybrid linear ultrasonic motor [J]. Ceramics International, 2015, 41: S607–S611.CrossRefGoogle Scholar
  2. [2]
    CHEN Z J, LI X T, CI P H, et al. A standing wave linear ultrasonic motor operating in in-plane expanding and bending modes. [J]. Review of Scientific Instruments, 2015, 86(3): 035002.CrossRefGoogle Scholar
  3. [3]
    CI P H, LIU G X, CHEN Z J, et al. A standing wave linear ultrasonic motor operating in facediagonal-bending mode [J]. Applied Physics Letters, 2013, 103(10): 102904.CrossRefGoogle Scholar
  4. [4]
    BOUROUINA T, GARNIER A, FUJITA H. Effect of direct current bias field and alternating current excitation field on vibration amplitudes and resonance frequencies of a magnetostrictively actuated bimorph microresonator [J]. Journal of Applied Physics, 2002, 91(1): 112–120.CrossRefGoogle Scholar
  5. [5]
    QIU J, WEN Y M, LI P, et al. The giant magnetoelectric effect in Fe73.5Cu1Nb3Si13.5B9/PZT thick film composites [J]. Journal of Applied Physics, 2015, 117(17): 17D701.Google Scholar
  6. [6]
    WAN J G, LI Z Y, WANG Y, et al. Strong flexural resonant magnetoelectric effect in Terfenol-D/epoxy-Pb(Zr, Ti)O3 bilayer [J]. Applied Physics Letters, 2005, 86(20): 202504.CrossRefGoogle Scholar
  7. [7]
    BICHURIN M I, PETROV R V, PETROV V M. Magnetoelectric effect at thickness shear mode in ferritepiezoelectric bilayer [J]. Applied Physics Letters, 2013, 103(9): 092902.CrossRefGoogle Scholar
  8. [8]
    CHEN Z X, SU Y. The influence of low-level pre-stressing on resonant magnetoelectric coupling in Terfenol-D/PZT/Terfenol-D laminated composite structure [J]. Journal of Applied Physics, 2014, 115(19): 193906.CrossRefGoogle Scholar
  9. [9]
    PARK T, KIM B, KIM M H, et al. Characteristics of the first longitudinal-fourth bending mode linear ultrasonic motors [J]. Japanese Journal of Applied Physics, 2002, 41(11): 7139–7143.CrossRefGoogle Scholar
  10. [10]
    ZHANG D G, LI M H, ZHOU H M. A general onedimension nonlinear magneto-elastic coupled constitutive model for magnetostrictive materials [J]. AIP Advances, 2015, 5(10): 107201.CrossRefGoogle Scholar
  11. [11]
    CLARK A E, SAVAGE H T. Giant magnetically induced changes in the elastic moduli in Tb0.3Dy0.7Fe2 [J]. IEEE Transactions on Sonics and Ultrasonics, 1975, 22(1): 50–52.CrossRefGoogle Scholar

Copyright information

© Shanghai Jiaotong University and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Chong Li (李 冲)
    • 1
  • Cunyue Lu (鹿存跃)
    • 1
  • Yixin Ma (马艺馨)
    • 1
  1. 1.Department of Instrument Science and EngineeringShanghai Jiao Tong UniversityShanghaiChina

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