Skip to content. | Skip to navigation

Personal tools

Navigation

You are here: Home / Job Offers / Post-doctoral position in Le Mans - Vision methods applied to the measurement of vibrations

Post-doctoral position in Le Mans - Vision methods applied to the measurement of vibrations

The Acoustic laboratory of Le Mans University (LAUM) - France
PhD position
12 months

In this project, the work to do is split in two main tasks:


1. Measurement of vibrations with a pseudo-stereo vision system with light pattern
projection Until now, techniques developed in Le Mans use a pattern (targets or random pat-
terns) which is drawn on the object of interest to recover its 3D displacement. This method can
be problematic in some case (it is time consuming, can damaged the object or can add mass
when using stickers). An alternative approach consists in projecting a pattern on the object.
In that case, existing codes will have to be adapted to this new configuration (the pattern, is
not vibrating any more but the its shape is modified by the vibrations). The new codes will be
validated with comparisons to classical methods (laser vibrometer or accelerometer).


2. Measurement of object from the industrial world Until now, we have validated our codes to
academic systems (plane aluminium plate, loudspeaker, etc.). The team supervising the project,
will provide more complicated test cases that will be more linked to the industrial world thanks
to the CTTM clients or partners. To do so, the measurement protocol (with or without mirrors),
the corresponding algorithms, and the de camera models will be adapted to facilitate the use of
the method for in situ configurations.

PDF document Post_doc_en-2.pdf — PDF document, 108 KB
Manuel MELON

manuel.melon@univ-lemans.fr