Design of interdigital transducers for crack detection in plates.

@article{Jin2005DesignOI,
  title={Design of interdigital transducers for crack detection in plates.},
  author={Jing Jin and Ser Tong Quek and Qiang Wang},
  journal={Ultrasonics},
  year={2005},
  volume={43 6},
  pages={481-93}
}
Interdigital transducers (IDT) for non-destructive evaluation (NDE) of cracks in plates are designed based on an analytical model established previously. Key considerations include mode selectivity, excitation strength, collimation of wave and cost. The advantage of mode selectivity of IDT over PZT patch is presented both analytically and experimentally. Effects of parameters, namely finger spacing, width, length, number of fingers, and the size of IDT, on the excitation strength and mode… CONTINUE READING