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10. Appendices
10.1 Appendix 1. Near-field expression
This appendix presents the classical integral calculation used to evaluate the field in the axis of the translator and to deduce the expression for the near field .
It is assumed that the translator chip is immersed in a homogeneous propagation medium.
The amplitude of the acoustic wave generated by the transducer at point P on the axis of the pellet results from the summation of all the elementary contributions from the pellet (figure
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