The objective of this thesis is to study the capability of bulk acoustic waves to monitor several measures such as vibration, temperature, effort and impact simultaneously on large surface areas. A method called amplitude disturbed diffraction patterns initially developed to detect the position of a human finger on a surface seems to be particularly well adapted to this task. The work includes to set-up a numerical model with allows the identification of the optimal transducer positions. Then, the drive electronics as well as the filters and detection algorithms have to be developed. Based on these results a first prototype will be implemented and tested. The optimization of the prototype as well as some design variations complete this thesis.

This position is open until it is filled.

Département: Département Intelligence Ambiante et Systèmes Interactifs (LIST)
Laboratory: Laboratoire d’Interfaces Sensorielles & Ambiantes
Start Date: 01-09-2015
ECA Code: SL-DRT-15-0608
Contact: christian.bolzmacher<στο>cea.fr