TY - GEN
T1 - Monitoring of repeated head impacts using time-dilation based self-powered sensing
AU - Aono, Kenji
AU - Covassin, Tracey
AU - Chakrabartty, Shantanu
PY - 2014
Y1 - 2014
N2 - Measuring head impacts in helmeted sports is important for prognosticating onset of mild traumatic brain injuries (MTBIs) or concussions. In this paper we present a miniature battery-less, self-powered sensor that can be embedded inside sport helmets and can continuously monitor and log the statistics of different levels of helmet impacts. At the core of the proposed sensor is a novel time-dilation circuit which allows measurement of the high-levels of impact energy. An array of linear floatinggate injector is used for storing the location of the sensor on the helmet and for logging the statistics of helmet impacts which can be retrieved using an external plug-and-play reader. Measured results from prototypes fabricated in a 0.5 μm CMOS process validate the functionality of the sensor when subjected to controlled drop tests.
AB - Measuring head impacts in helmeted sports is important for prognosticating onset of mild traumatic brain injuries (MTBIs) or concussions. In this paper we present a miniature battery-less, self-powered sensor that can be embedded inside sport helmets and can continuously monitor and log the statistics of different levels of helmet impacts. At the core of the proposed sensor is a novel time-dilation circuit which allows measurement of the high-levels of impact energy. An array of linear floatinggate injector is used for storing the location of the sensor on the helmet and for logging the statistics of helmet impacts which can be retrieved using an external plug-and-play reader. Measured results from prototypes fabricated in a 0.5 μm CMOS process validate the functionality of the sensor when subjected to controlled drop tests.
UR - http://www.scopus.com/inward/record.url?scp=84907389385&partnerID=8YFLogxK
U2 - 10.1109/ISCAS.2014.6865461
DO - 10.1109/ISCAS.2014.6865461
M3 - Conference contribution
AN - SCOPUS:84907389385
SN - 9781479934324
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - 1620
EP - 1623
BT - 2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
Y2 - 1 June 2014 through 5 June 2014
ER -