Citation:
M. Messina, J. Njuguna, V. Dariol, C. Pace, G. Angeletti. Design and Simulation of a Novel Bio-Mechanic Piezoresistive Sensor with Silicon Nanowires. IEEE/ASME Transactions on Mechatronics, 2012, Volume PP, Issue 99, Pages 1-10
Abstract:
This paper presents the design of a novel single square millimeter 3-axial
accelerometer for head injury detection of racing car drivers. The main
requirements of this application are miniaturization and high-G measurement
range. We propose a new miniature accelerometer to be incorporated into an
earpiece. Nanowires as nanoscale piezoresistive devices have been chosen as
sensing element, due to their high sensitivity and miniaturization achievable.
By exploiting the electro-mechanical features of nanowires as nanoscale
piezoresistors, the nominal sensor sensitivity is overall boosted by more than
30 times. This approach allowssignificant higher accuracy and resolution with
smaller sensing element in comparison with conventional devices without the need
of signal amplification. This achievement opens up new developments in the area
of implanted devices where the high-level of miniaturization and sensitivity is
essential.
