Chin. Phys. Lett.  1995, Vol. 12 Issue (7): 442-444    DOI:
Original Articles |
An Analyses of Internal Magnetic Field in Moment Actuator
QIU Shuye*;B. M. Gibbs
*Department of Physics, Shantou university, Shantou 515063 Acoustics Research Unit, Liverpool University, P. O. BOX 147, Liverpool L69 3BX, U. K.
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QIU Shuye, B. M. Gibbs 1995 Chin. Phys. Lett. 12 442-444
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Abstract A medium size moment actuator is decribed. It consists of two parallel identical magnetostrictive rods. Magnetic biases with parallel and series magnetic paths, respectively, are discussed. Analysis for a branch of the parallel magnetic paths is conducted. Conversion coefficients from electrical to mechanical energy for three prototype moment actuators with different magnetic paths are measured to support the analyses for the internal magnetic field of the actuator in theory.
Keywords: 85.70.Ec      43.40.+s      43.50.+y     
Published: 01 July 1995
PACS:  85.70.Ec (Magnetostrictive, magnetoacoustic, and magnetostatic devices)  
  43.40.+s (Structural acoustics and vibration)  
  43.50.+y (Noise: its effects and control)  
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