TY - JOUR
T1 - Piezo-powered floating gate injector for self-powered fatigue monitoring in biomechanical implants
AU - Lajnef, Nizar
AU - Chakrabartty, Shantanu
AU - Elvin, Niell
AU - Elvin, Alex
PY - 2007
Y1 - 2007
N2 - In this paper we describe an implementation and modeling of a novel fatigue monitoring sensor based on integration of piezoelectric transduction with floating gate avalanche injection. The miniaturized sensor enables continuous battery-less monitoring and failure predictions of biomechanical implants. Measured results from a fabricated prototype in a 0.5μm CMOS process demonstrate excellent agreement with the theoretical model in computing cumulative statistics of electrical signals generated by the piezoelectric transducer. The power dissipation of the sensor is less than 1μW which makes it attractive for integration with biocompatible poly-vinylidene diflouride (PVDF) based transducers.
AB - In this paper we describe an implementation and modeling of a novel fatigue monitoring sensor based on integration of piezoelectric transduction with floating gate avalanche injection. The miniaturized sensor enables continuous battery-less monitoring and failure predictions of biomechanical implants. Measured results from a fabricated prototype in a 0.5μm CMOS process demonstrate excellent agreement with the theoretical model in computing cumulative statistics of electrical signals generated by the piezoelectric transducer. The power dissipation of the sensor is less than 1μW which makes it attractive for integration with biocompatible poly-vinylidene diflouride (PVDF) based transducers.
UR - http://www.scopus.com/inward/record.url?scp=34548851713&partnerID=8YFLogxK
U2 - 10.1109/iscas.2007.378189
DO - 10.1109/iscas.2007.378189
M3 - Conference article
AN - SCOPUS:34548851713
SN - 0271-4310
SP - 89
EP - 92
JO - Proceedings - IEEE International Symposium on Circuits and Systems
JF - Proceedings - IEEE International Symposium on Circuits and Systems
M1 - 4252578
T2 - 2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007
Y2 - 27 May 2007 through 30 May 2007
ER -