APPLICATIONS OF TERFENOL-D IN CHINA

Applications of Terfenol-D in China are reviewed. Cylindrical, compoun d-bar, flextensional transducers for underwater acoustics, dipole tran sducers for acoustic oil-well logging, controllers and actuators are d escribed in this paper. In addition, this paper presents the fundament als of design for Terfenol-D transducer, such as measurement of electr omechanical coupling coefficient k(33,) estimation of prestress and ca lculation of resonant frequency, etc. But even getting some solutions for these problems, we still require further work to pay more attentio n to the applications of Terfenol-D. (C) 1997 Elsevier Science S.A.