Some of the biological sensors found in nature portray the best designs with incomprehensible sensing features. Recent studies reveal that Harbor seals (Phoca vitulina) are capable of performing underwater wake tracking using their vibrissae alone. It is believed that the unique geometry of the whiskers may play a role in suppressing vortex-induced vibrations. In this work, we developed piezoelectric MEMS flow sensors that utilize high aspect ratio micro-whiskers to sense flows underwater with high sensitivity. Through a comparative experimental study, the contribution of a whisker-like geometry towards the reduction of vortex-induced vibrations as compared to a cylindrical geometry is validated.
|Number of pages||4|
|Journal||Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)|
|Publication status||Published - 26 Feb 2015|
|Event|| 27th IEEE International Conference on Micro Electro Mechanical Systems (MEMS 2015) - Estoril, Portugal , Estoril|
Duration: 18 Jan 2015 → 22 Jan 2015