WU Di LI Mingxuan WANG Xiaomin CHENG Yue

 (Institute of Acoustics, Chinese Academy of Sciences Beijing 100080)

Received Dec. 25, 2006

Revised Jan. 29, 2007

Abstract  The ultrasonic transient field of horizontally polarized shear wave radiated by a 2/2 piezoelectric composite normal probe was analyzed. The analytic field solutions for two different surface force sources were deduced and the transient displacement field distribution on the central cross-section was plotted by numerical calculations. Direct wave and edge wave as well as head wave were observed distinctly in the plots. The experimental results of time domain waveform conformed with the theoretical predictions, which supported the theoretical and numerical results about the transient field of the transducer.

PACS number: 43.35