Engineering and Computer Science Faculty Publications

Sensing Passive Eye Response to Impact Induced Head Acceleration Using MEMS IMUs

Document Type

Article

Publication Date

2-2018

Journal Title

IEEE Transactions on Biomedical Circuits and Systems

Volume

12

Issue

1

First Page

182

Last Page

191

DOI

10.1109/TBCAS.2017.2766565

Abstract

The eye may act as a surrogate for the brain in response to head acceleration during an impact. Passive eye movements in a dynamic system are sensed by microelectromechanical systems (MEMS) inertial measurement units (IMU) in this paper. The technique is validated using a three-dimensional printed scaled human skull model and on human volunteers by performing drop-and-impact experiments with ribbon-style flexible printed circuit board IMUs inserted in the eyes and reference IMUs on the heads. Data are captured by a microcontroller unit and processed using data fusion. Displacements are thus estimated and match the measured parameters. Relative accelerations and displacements of the eye to the head are computed indicating the influence of the concussion causing impacts.

Keywords

Head trauma, concussion, real-time diagnosis, MEMS IMU, eye response, skull model, data fusion

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