We have demonstrated bioinspired pressure sensing based on our proof-of-concept device utilizing magnetostrictive nanowires (NWs) as artificial cilia. In this research, the pressure sensing system was fabricated with vertically aligned Fe-Ga/Cu multilayered NW array that were placed over a giant magnetoresistance (GMR) magnetic field sensor. Applications of an external force on the array were applied to bend the NWs. The resulting mechanical-magneto transduction produced rotation of magnetization in the NWs and corresponding changes in magnitude of stray fields from the NWs were detected by the GMR sensor. The approach presents generic and flexible strategies for development of a pressure sensing devices with high resolution.
|Original language||English (US)|
|State||Published - Dec 1 2012|
|Event||23rd International Conference on Adaptive Structures and Technologies, ICAST 2012 - Nanjing, China|
Duration: Oct 11 2012 → Oct 13 2012
|Other||23rd International Conference on Adaptive Structures and Technologies, ICAST 2012|
|Period||10/11/12 → 10/13/12|